----------------------------
-What: Support for lcd_switch and display_get in asus-laptop driver
-When: March 2010
-Why: These two features use non-standard interfaces. There are the
- only features that really need multiple path to guess what's
- the right method name on a specific laptop.
-
- Removing them will allow to remove a lot of code an significantly
- clean the drivers.
-
- This will affect the backlight code which won't be able to know
- if the backlight is on or off. The platform display file will also be
- write only (like the one in eeepc-laptop).
-
- This should'nt affect a lot of user because they usually know
- when their display is on or off.
-
-Who: Corentin Chary <corentin.chary@gmail.com>
-
-----------------------------
-
What: sysfs-class-rfkill state file
When: Feb 2014
Files: net/rfkill/core.c
--- /dev/null
+Kernel driver max16064
+======================
+
+Supported chips:
+ * Maxim MAX16064
+ Prefix: 'max16064'
+ Addresses scanned: -
+ Datasheet: http://datasheets.maxim-ic.com/en/ds/MAX16064.pdf
+
+Author: Guenter Roeck <guenter.roeck@ericsson.com>
+
+
+Description
+-----------
+
+This driver supports hardware montoring for Maxim MAX16064 Quad Power-Supply
+Controller with Active-Voltage Output Control and PMBus Interface.
+
+The driver is a client driver to the core PMBus driver.
+Please see Documentation/hwmon/pmbus for details on PMBus client drivers.
+
+
+Usage Notes
+-----------
+
+This driver does not auto-detect devices. You will have to instantiate the
+devices explicitly. Please see Documentation/i2c/instantiating-devices for
+details.
+
+
+Platform data support
+---------------------
+
+The driver supports standard PMBus driver platform data.
+
+
+Sysfs entries
+-------------
+
+The following attributes are supported. Limits are read-write; all other
+attributes are read-only.
+
+in[1-4]_label "vout[1-4]"
+in[1-4]_input Measured voltage. From READ_VOUT register.
+in[1-4]_min Minumum Voltage. From VOUT_UV_WARN_LIMIT register.
+in[1-4]_max Maximum voltage. From VOUT_OV_WARN_LIMIT register.
+in[1-4]_lcrit Critical minumum Voltage. VOUT_UV_FAULT_LIMIT register.
+in[1-4]_crit Critical maximum voltage. From VOUT_OV_FAULT_LIMIT register.
+in[1-4]_min_alarm Voltage low alarm. From VOLTAGE_UV_WARNING status.
+in[1-4]_max_alarm Voltage high alarm. From VOLTAGE_OV_WARNING status.
+in[1-4]_lcrit_alarm Voltage critical low alarm. From VOLTAGE_UV_FAULT status.
+in[1-4]_crit_alarm Voltage critical high alarm. From VOLTAGE_OV_FAULT status.
+
+temp1_input Measured temperature. From READ_TEMPERATURE_1 register.
+temp1_max Maximum temperature. From OT_WARN_LIMIT register.
+temp1_crit Critical high temperature. From OT_FAULT_LIMIT register.
+temp1_max_alarm Chip temperature high alarm. Set by comparing
+ READ_TEMPERATURE_1 with OT_WARN_LIMIT if TEMP_OT_WARNING
+ status is set.
+temp1_crit_alarm Chip temperature critical high alarm. Set by comparing
+ READ_TEMPERATURE_1 with OT_FAULT_LIMIT if TEMP_OT_FAULT
+ status is set.
--- /dev/null
+Kernel driver max34440
+======================
+
+Supported chips:
+ * Maxim MAX34440
+ Prefixes: 'max34440'
+ Addresses scanned: -
+ Datasheet: http://datasheets.maxim-ic.com/en/ds/MAX34440.pdf
+ * Maxim MAX34441
+ PMBus 5-Channel Power-Supply Manager and Intelligent Fan Controller
+ Prefixes: 'max34441'
+ Addresses scanned: -
+ Datasheet: http://datasheets.maxim-ic.com/en/ds/MAX34441.pdf
+
+Author: Guenter Roeck <guenter.roeck@ericsson.com>
+
+
+Description
+-----------
+
+This driver supports hardware montoring for Maxim MAX34440 PMBus 6-Channel
+Power-Supply Manager and MAX34441 PMBus 5-Channel Power-Supply Manager
+and Intelligent Fan Controller.
+
+The driver is a client driver to the core PMBus driver. Please see
+Documentation/hwmon/pmbus for details on PMBus client drivers.
+
+
+Usage Notes
+-----------
+
+This driver does not auto-detect devices. You will have to instantiate the
+devices explicitly. Please see Documentation/i2c/instantiating-devices for
+details.
+
+
+Platform data support
+---------------------
+
+The driver supports standard PMBus driver platform data.
+
+
+Sysfs entries
+-------------
+
+The following attributes are supported. Limits are read-write; all other
+attributes are read-only.
+
+in[1-6]_label "vout[1-6]".
+in[1-6]_input Measured voltage. From READ_VOUT register.
+in[1-6]_min Minumum Voltage. From VOUT_UV_WARN_LIMIT register.
+in[1-6]_max Maximum voltage. From VOUT_OV_WARN_LIMIT register.
+in[1-6]_lcrit Critical minumum Voltage. VOUT_UV_FAULT_LIMIT register.
+in[1-6]_crit Critical maximum voltage. From VOUT_OV_FAULT_LIMIT register.
+in[1-6]_min_alarm Voltage low alarm. From VOLTAGE_UV_WARNING status.
+in[1-6]_max_alarm Voltage high alarm. From VOLTAGE_OV_WARNING status.
+in[1-6]_lcrit_alarm Voltage critical low alarm. From VOLTAGE_UV_FAULT status.
+in[1-6]_crit_alarm Voltage critical high alarm. From VOLTAGE_OV_FAULT status.
+
+curr[1-6]_label "iout[1-6]".
+curr[1-6]_input Measured current. From READ_IOUT register.
+curr[1-6]_max Maximum current. From IOUT_OC_WARN_LIMIT register.
+curr[1-6]_crit Critical maximum current. From IOUT_OC_FAULT_LIMIT register.
+curr[1-6]_max_alarm Current high alarm. From IOUT_OC_WARNING status.
+curr[1-6]_crit_alarm Current critical high alarm. From IOUT_OC_FAULT status.
+
+ in6 and curr6 attributes only exist for MAX34440.
+
+temp[1-8]_input Measured temperatures. From READ_TEMPERATURE_1 register.
+ temp1 is the chip's internal temperature. temp2..temp5
+ are remote I2C temperature sensors. For MAX34441, temp6
+ is a remote thermal-diode sensor. For MAX34440, temp6..8
+ are remote I2C temperature sensors.
+temp[1-8]_max Maximum temperature. From OT_WARN_LIMIT register.
+temp[1-8]_crit Critical high temperature. From OT_FAULT_LIMIT register.
+temp[1-8]_max_alarm Temperature high alarm.
+temp[1-8]_crit_alarm Temperature critical high alarm.
+
+ temp7 and temp8 attributes only exist for MAX34440.
--- /dev/null
+Kernel driver max8688
+=====================
+
+Supported chips:
+ * Maxim MAX8688
+ Prefix: 'max8688'
+ Addresses scanned: -
+ Datasheet: http://datasheets.maxim-ic.com/en/ds/MAX8688.pdf
+
+Author: Guenter Roeck <guenter.roeck@ericsson.com>
+
+
+Description
+-----------
+
+This driver supports hardware montoring for Maxim MAX8688 Digital Power-Supply
+Controller/Monitor with PMBus Interface.
+
+The driver is a client driver to the core PMBus driver. Please see
+Documentation/hwmon/pmbus for details on PMBus client drivers.
+
+
+Usage Notes
+-----------
+
+This driver does not auto-detect devices. You will have to instantiate the
+devices explicitly. Please see Documentation/i2c/instantiating-devices for
+details.
+
+
+Platform data support
+---------------------
+
+The driver supports standard PMBus driver platform data.
+
+
+Sysfs entries
+-------------
+
+The following attributes are supported. Limits are read-write; all other
+attributes are read-only.
+
+in1_label "vout1"
+in1_input Measured voltage. From READ_VOUT register.
+in1_min Minumum Voltage. From VOUT_UV_WARN_LIMIT register.
+in1_max Maximum voltage. From VOUT_OV_WARN_LIMIT register.
+in1_lcrit Critical minumum Voltage. VOUT_UV_FAULT_LIMIT register.
+in1_crit Critical maximum voltage. From VOUT_OV_FAULT_LIMIT register.
+in1_min_alarm Voltage low alarm. From VOLTAGE_UV_WARNING status.
+in1_max_alarm Voltage high alarm. From VOLTAGE_OV_WARNING status.
+in1_lcrit_alarm Voltage critical low alarm. From VOLTAGE_UV_FAULT status.
+in1_crit_alarm Voltage critical high alarm. From VOLTAGE_OV_FAULT status.
+
+curr1_label "iout1"
+curr1_input Measured current. From READ_IOUT register.
+curr1_max Maximum current. From IOUT_OC_WARN_LIMIT register.
+curr1_crit Critical maximum current. From IOUT_OC_FAULT_LIMIT register.
+curr1_max_alarm Current high alarm. From IOUT_OC_WARN_LIMIT register.
+curr1_crit_alarm Current critical high alarm. From IOUT_OC_FAULT status.
+
+temp1_input Measured temperature. From READ_TEMPERATURE_1 register.
+temp1_max Maximum temperature. From OT_WARN_LIMIT register.
+temp1_crit Critical high temperature. From OT_FAULT_LIMIT register.
+temp1_max_alarm Chip temperature high alarm. Set by comparing
+ READ_TEMPERATURE_1 with OT_WARN_LIMIT if TEMP_OT_WARNING
+ status is set.
+temp1_crit_alarm Chip temperature critical high alarm. Set by comparing
+ READ_TEMPERATURE_1 with OT_FAULT_LIMIT if TEMP_OT_FAULT
+ status is set.
Prefix: 'ltc2978'
Addresses scanned: -
Datasheet: http://cds.linear.com/docs/Datasheet/2978fa.pdf
- * Maxim MAX16064
- Quad Power-Supply Controller
- Prefix: 'max16064'
- Addresses scanned: -
- Datasheet: http://datasheets.maxim-ic.com/en/ds/MAX16064.pdf
- * Maxim MAX34440
- PMBus 6-Channel Power-Supply Manager
- Prefixes: 'max34440'
- Addresses scanned: -
- Datasheet: http://datasheets.maxim-ic.com/en/ds/MAX34440.pdf
- * Maxim MAX34441
- PMBus 5-Channel Power-Supply Manager and Intelligent Fan Controller
- Prefixes: 'max34441'
- Addresses scanned: -
- Datasheet: http://datasheets.maxim-ic.com/en/ds/MAX34441.pdf
- * Maxim MAX8688
- Digital Power-Supply Controller/Monitor
- Prefix: 'max8688'
- Addresses scanned: -
- Datasheet: http://datasheets.maxim-ic.com/en/ds/MAX8688.pdf
* Generic PMBus devices
Prefix: 'pmbus'
Addresses scanned: -
From IIN_OC_FAULT_LIMIT or IOUT_OC_FAULT_LIMIT register.
currX_alarm Current high alarm.
From IIN_OC_WARNING or IOUT_OC_WARNING status.
+currX_max_alarm Current high alarm.
+ From IIN_OC_WARN_LIMIT or IOUT_OC_WARN_LIMIT status.
currX_lcrit_alarm Output current critical low alarm.
From IOUT_UC_FAULT status.
currX_crit_alarm Current critical high alarm.
From IIN_OC_FAULT or IOUT_OC_FAULT status.
-currX_label "iin" or "vinY"
+currX_label "iin" or "ioutY"
powerX_input Measured power. From READ_PIN or READ_POUT register.
powerX_cap Output power cap. From POUT_MAX register.
From POUT_OP_FAULT status.
powerX_label "pin" or "poutY"
-tempX_input Measured tempererature.
+tempX_input Measured temperature.
From READ_TEMPERATURE_X register.
-tempX_min Mimimum tempererature. From UT_WARN_LIMIT register.
-tempX_max Maximum tempererature. From OT_WARN_LIMIT register.
-tempX_lcrit Critical low tempererature.
+tempX_min Mimimum temperature. From UT_WARN_LIMIT register.
+tempX_max Maximum temperature. From OT_WARN_LIMIT register.
+tempX_lcrit Critical low temperature.
From UT_FAULT_LIMIT register.
-tempX_crit Critical high tempererature.
+tempX_crit Critical high temperature.
From OT_FAULT_LIMIT register.
tempX_min_alarm Chip temperature low alarm. Set by comparing
READ_TEMPERATURE_X with UT_WARN_LIMIT if
in9_crit_alarm AIN1 critical alarm
in10_crit_alarm AIN2 critical alarm
-temp1_input Chip tempererature
-temp1_min Mimimum chip tempererature
-temp1_max Maximum chip tempererature
-temp1_crit Critical chip tempererature
+temp1_input Chip temperature
+temp1_min Mimimum chip temperature
+temp1_max Maximum chip temperature
+temp1_crit Critical chip temperature
temp1_crit_alarm Temperature critical alarm
--- /dev/null
+ How to Get Your Patch Accepted Into the Hwmon Subsystem
+ -------------------------------------------------------
+
+This text is is a collection of suggestions for people writing patches or
+drivers for the hwmon subsystem. Following these suggestions will greatly
+increase the chances of your change being accepted.
+
+
+1. General
+----------
+
+* It should be unnecessary to mention, but please read and follow
+ Documentation/SubmitChecklist
+ Documentation/SubmittingDrivers
+ Documentation/SubmittingPatches
+ Documentation/CodingStyle
+
+* If your patch generates checkpatch warnings, please refrain from explanations
+ such as "I don't like that coding style". Keep in mind that each unnecessary
+ warning helps hiding a real problem. If you don't like the kernel coding
+ style, don't write kernel drivers.
+
+* Please test your patch thoroughly. We are not your test group.
+ Sometimes a patch can not or not completely be tested because of missing
+ hardware. In such cases, you should test-build the code on at least one
+ architecture. If run-time testing was not achieved, it should be written
+ explicitly below the patch header.
+
+* If your patch (or the driver) is affected by configuration options such as
+ CONFIG_SMP or CONFIG_HOTPLUG, make sure it compiles for all configuration
+ variants.
+
+
+2. Adding functionality to existing drivers
+-------------------------------------------
+
+* Make sure the documentation in Documentation/hwmon/<driver_name> is up to
+ date.
+
+* Make sure the information in Kconfig is up to date.
+
+* If the added functionality requires some cleanup or structural changes, split
+ your patch into a cleanup part and the actual addition. This makes it easier
+ to review your changes, and to bisect any resulting problems.
+
+* Never mix bug fixes, cleanup, and functional enhancements in a single patch.
+
+
+3. New drivers
+--------------
+
+* Running your patch or driver file(s) through checkpatch does not mean its
+ formatting is clean. If unsure about formatting in your new driver, run it
+ through Lindent. Lindent is not perfect, and you may have to do some minor
+ cleanup, but it is a good start.
+
+* Consider adding yourself to MAINTAINERS.
+
+* Document the driver in Documentation/hwmon/<driver_name>.
+
+* Add the driver to Kconfig and Makefile in alphabetical order.
+
+* Make sure that all dependencies are listed in Kconfig. For new drivers, it
+ is most likely prudent to add a dependency on EXPERIMENTAL.
+
+* Avoid forward declarations if you can. Rearrange the code if necessary.
+
+* Avoid calculations in macros and macro-generated functions. While such macros
+ may save a line or so in the source, it obfuscates the code and makes code
+ review more difficult. It may also result in code which is more complicated
+ than necessary. Use inline functions or just regular functions instead.
+
+* If the driver has a detect function, make sure it is silent. Debug messages
+ and messages printed after a successful detection are acceptable, but it
+ must not print messages such as "Chip XXX not found/supported".
+
+ Keep in mind that the detect function will run for all drivers supporting an
+ address if a chip is detected on that address. Unnecessary messages will just
+ pollute the kernel log and not provide any value.
+
+* Provide a detect function if and only if a chip can be detected reliably.
+
+* Avoid writing to chip registers in the detect function. If you have to write,
+ only do it after you have already gathered enough data to be certain that the
+ detection is going to be successful.
+
+ Keep in mind that the chip might not be what your driver believes it is, and
+ writing to it might cause a bad misconfiguration.
+
+* Make sure there are no race conditions in the probe function. Specifically,
+ completely initialize your chip first, then create sysfs entries and register
+ with the hwmon subsystem.
+
+* Do not provide support for deprecated sysfs attributes.
+
+* Do not create non-standard attributes unless really needed. If you have to use
+ non-standard attributes, or you believe you do, discuss it on the mailing list
+ first. Either case, provide a detailed explanation why you need the
+ non-standard attribute(s).
+ Standard attributes are specified in Documentation/hwmon/sysfs-interface.
+
+* When deciding which sysfs attributes to support, look at the chip's
+ capabilities. While we do not expect your driver to support everything the
+ chip may offer, it should at least support all limits and alarms.
+
+* Last but not least, please check if a driver for your chip already exists
+ before starting to write a new driver. Especially for temperature sensors,
+ new chips are often variants of previously released chips. In some cases,
+ a presumably new chip may simply have been relabeled.
--- /dev/null
+The input protocol uses a map of types and codes to express input device values
+to userspace. This document describes the types and codes and how and when they
+may be used.
+
+A single hardware event generates multiple input events. Each input event
+contains the new value of a single data item. A special event type, EV_SYN, is
+used to separate input events into packets of input data changes occurring at
+the same moment in time. In the following, the term "event" refers to a single
+input event encompassing a type, code, and value.
+
+The input protocol is a stateful protocol. Events are emitted only when values
+of event codes have changed. However, the state is maintained within the Linux
+input subsystem; drivers do not need to maintain the state and may attempt to
+emit unchanged values without harm. Userspace may obtain the current state of
+event code values using the EVIOCG* ioctls defined in linux/input.h. The event
+reports supported by a device are also provided by sysfs in
+class/input/event*/device/capabilities/, and the properties of a device are
+provided in class/input/event*/device/properties.
+
+Types:
+==========
+Types are groupings of codes under a logical input construct. Each type has a
+set of applicable codes to be used in generating events. See the Codes section
+for details on valid codes for each type.
+
+* EV_SYN:
+ - Used as markers to separate events. Events may be separated in time or in
+ space, such as with the multitouch protocol.
+
+* EV_KEY:
+ - Used to describe state changes of keyboards, buttons, or other key-like
+ devices.
+
+* EV_REL:
+ - Used to describe relative axis value changes, e.g. moving the mouse 5 units
+ to the left.
+
+* EV_ABS:
+ - Used to describe absolute axis value changes, e.g. describing the
+ coordinates of a touch on a touchscreen.
+
+* EV_MSC:
+ - Used to describe miscellaneous input data that do not fit into other types.
+
+* EV_SW:
+ - Used to describe binary state input switches.
+
+* EV_LED:
+ - Used to turn LEDs on devices on and off.
+
+* EV_SND:
+ - Used to output sound to devices.
+
+* EV_REP:
+ - Used for autorepeating devices.
+
+* EV_FF:
+ - Used to send force feedback commands to an input device.
+
+* EV_PWR:
+ - A special type for power button and switch input.
+
+* EV_FF_STATUS:
+ - Used to receive force feedback device status.
+
+Codes:
+==========
+Codes define the precise type of event.
+
+EV_SYN:
+----------
+EV_SYN event values are undefined. Their usage is defined only by when they are
+sent in the evdev event stream.
+
+* SYN_REPORT:
+ - Used to synchronize and separate events into packets of input data changes
+ occurring at the same moment in time. For example, motion of a mouse may set
+ the REL_X and REL_Y values for one motion, then emit a SYN_REPORT. The next
+ motion will emit more REL_X and REL_Y values and send another SYN_REPORT.
+
+* SYN_CONFIG:
+ - TBD
+
+* SYN_MT_REPORT:
+ - Used to synchronize and separate touch events. See the
+ multi-touch-protocol.txt document for more information.
+
+* SYN_DROPPED:
+ - Used to indicate buffer overrun in the evdev client's event queue.
+ Client should ignore all events up to and including next SYN_REPORT
+ event and query the device (using EVIOCG* ioctls) to obtain its
+ current state.
+
+EV_KEY:
+----------
+EV_KEY events take the form KEY_<name> or BTN_<name>. For example, KEY_A is used
+to represent the 'A' key on a keyboard. When a key is depressed, an event with
+the key's code is emitted with value 1. When the key is released, an event is
+emitted with value 0. Some hardware send events when a key is repeated. These
+events have a value of 2. In general, KEY_<name> is used for keyboard keys, and
+BTN_<name> is used for other types of momentary switch events.
+
+A few EV_KEY codes have special meanings:
+
+* BTN_TOOL_<name>:
+ - These codes are used in conjunction with input trackpads, tablets, and
+ touchscreens. These devices may be used with fingers, pens, or other tools.
+ When an event occurs and a tool is used, the corresponding BTN_TOOL_<name>
+ code should be set to a value of 1. When the tool is no longer interacting
+ with the input device, the BTN_TOOL_<name> code should be reset to 0. All
+ trackpads, tablets, and touchscreens should use at least one BTN_TOOL_<name>
+ code when events are generated.
+
+* BTN_TOUCH:
+ BTN_TOUCH is used for touch contact. While an input tool is determined to be
+ within meaningful physical contact, the value of this property must be set
+ to 1. Meaningful physical contact may mean any contact, or it may mean
+ contact conditioned by an implementation defined property. For example, a
+ touchpad may set the value to 1 only when the touch pressure rises above a
+ certain value. BTN_TOUCH may be combined with BTN_TOOL_<name> codes. For
+ example, a pen tablet may set BTN_TOOL_PEN to 1 and BTN_TOUCH to 0 while the
+ pen is hovering over but not touching the tablet surface.
+
+Note: For appropriate function of the legacy mousedev emulation driver,
+BTN_TOUCH must be the first evdev code emitted in a synchronization frame.
+
+Note: Historically a touch device with BTN_TOOL_FINGER and BTN_TOUCH was
+interpreted as a touchpad by userspace, while a similar device without
+BTN_TOOL_FINGER was interpreted as a touchscreen. For backwards compatibility
+with current userspace it is recommended to follow this distinction. In the
+future, this distinction will be deprecated and the device properties ioctl
+EVIOCGPROP, defined in linux/input.h, will be used to convey the device type.
+
+* BTN_TOOL_FINGER, BTN_TOOL_DOUBLETAP, BTN_TOOL_TRIPLETAP, BTN_TOOL_QUADTAP:
+ - These codes denote one, two, three, and four finger interaction on a
+ trackpad or touchscreen. For example, if the user uses two fingers and moves
+ them on the touchpad in an effort to scroll content on screen,
+ BTN_TOOL_DOUBLETAP should be set to value 1 for the duration of the motion.
+ Note that all BTN_TOOL_<name> codes and the BTN_TOUCH code are orthogonal in
+ purpose. A trackpad event generated by finger touches should generate events
+ for one code from each group. At most only one of these BTN_TOOL_<name>
+ codes should have a value of 1 during any synchronization frame.
+
+Note: Historically some drivers emitted multiple of the finger count codes with
+a value of 1 in the same synchronization frame. This usage is deprecated.
+
+Note: In multitouch drivers, the input_mt_report_finger_count() function should
+be used to emit these codes. Please see multi-touch-protocol.txt for details.
+
+EV_REL:
+----------
+EV_REL events describe relative changes in a property. For example, a mouse may
+move to the left by a certain number of units, but its absolute position in
+space is unknown. If the absolute position is known, EV_ABS codes should be used
+instead of EV_REL codes.
+
+A few EV_REL codes have special meanings:
+
+* REL_WHEEL, REL_HWHEEL:
+ - These codes are used for vertical and horizontal scroll wheels,
+ respectively.
+
+EV_ABS:
+----------
+EV_ABS events describe absolute changes in a property. For example, a touchpad
+may emit coordinates for a touch location.
+
+A few EV_ABS codes have special meanings:
+
+* ABS_DISTANCE:
+ - Used to describe the distance of a tool from an interaction surface. This
+ event should only be emitted while the tool is hovering, meaning in close
+ proximity of the device and while the value of the BTN_TOUCH code is 0. If
+ the input device may be used freely in three dimensions, consider ABS_Z
+ instead.
+
+* ABS_MT_<name>:
+ - Used to describe multitouch input events. Please see
+ multi-touch-protocol.txt for details.
+
+EV_SW:
+----------
+EV_SW events describe stateful binary switches. For example, the SW_LID code is
+used to denote when a laptop lid is closed.
+
+Upon binding to a device or resuming from suspend, a driver must report
+the current switch state. This ensures that the device, kernel, and userspace
+state is in sync.
+
+Upon resume, if the switch state is the same as before suspend, then the input
+subsystem will filter out the duplicate switch state reports. The driver does
+not need to keep the state of the switch at any time.
+
+EV_MSC:
+----------
+EV_MSC events are used for input and output events that do not fall under other
+categories.
+
+EV_LED:
+----------
+EV_LED events are used for input and output to set and query the state of
+various LEDs on devices.
+
+EV_REP:
+----------
+EV_REP events are used for specifying autorepeating events.
+
+EV_SND:
+----------
+EV_SND events are used for sending sound commands to simple sound output
+devices.
+
+EV_FF:
+----------
+EV_FF events are used to initialize a force feedback capable device and to cause
+such device to feedback.
+
+EV_PWR:
+----------
+EV_PWR events are a special type of event used specifically for power
+mangement. Its usage is not well defined. To be addressed later.
+
+Guidelines:
+==========
+The guidelines below ensure proper single-touch and multi-finger functionality.
+For multi-touch functionality, see the multi-touch-protocol.txt document for
+more information.
+
+Mice:
+----------
+REL_{X,Y} must be reported when the mouse moves. BTN_LEFT must be used to report
+the primary button press. BTN_{MIDDLE,RIGHT,4,5,etc.} should be used to report
+further buttons of the device. REL_WHEEL and REL_HWHEEL should be used to report
+scroll wheel events where available.
+
+Touchscreens:
+----------
+ABS_{X,Y} must be reported with the location of the touch. BTN_TOUCH must be
+used to report when a touch is active on the screen.
+BTN_{MOUSE,LEFT,MIDDLE,RIGHT} must not be reported as the result of touch
+contact. BTN_TOOL_<name> events should be reported where possible.
+
+Trackpads:
+----------
+Legacy trackpads that only provide relative position information must report
+events like mice described above.
+
+Trackpads that provide absolute touch position must report ABS_{X,Y} for the
+location of the touch. BTN_TOUCH should be used to report when a touch is active
+on the trackpad. Where multi-finger support is available, BTN_TOOL_<name> should
+be used to report the number of touches active on the trackpad.
+
+Tablets:
+----------
+BTN_TOOL_<name> events must be reported when a stylus or other tool is active on
+the tablet. ABS_{X,Y} must be reported with the location of the tool. BTN_TOUCH
+should be used to report when the tool is in contact with the tablet.
+BTN_{STYLUS,STYLUS2} should be used to report buttons on the tool itself. Any
+button may be used for buttons on the tablet except BTN_{MOUSE,LEFT}.
+BTN_{0,1,2,etc} are good generic codes for unlabeled buttons. Do not use
+meaningful buttons, like BTN_FORWARD, unless the button is labeled for that
+purpose on the device.
within the array where IO will be blocked. This is currently
only supported for raid4/5/6.
+ sync_min
+ sync_max
+ The two values, given as numbers of sectors, indicate a range
+ withing the array where 'check'/'repair' will operate. Must be
+ a multiple of chunk_size. When it reaches "sync_max" it will
+ pause, rather than complete.
+ You can use 'select' or 'poll' on "sync_completed" to wait for
+ that number to reach sync_max. Then you can either increase
+ "sync_max", or can write 'idle' to "sync_action".
+
Each active md device may also have attributes specific to the
personality module that manages it.
F: drivers/net/hamradio/6pack.c
8169 10/100/1000 GIGABIT ETHERNET DRIVER
+M: Realtek linux nic maintainers <nic_swsd@realtek.com>
M: Francois Romieu <romieu@fr.zoreil.com>
L: netdev@vger.kernel.org
S: Maintained
F: fs/9p/
A2232 SERIAL BOARD DRIVER
-M: Enver Haase <A2232@gmx.net>
L: linux-m68k@lists.linux-m68k.org
-S: Maintained
-F: drivers/char/ser_a2232*
+S: Orphan
+F: drivers/staging/generic_serial/ser_a2232*
AACRAID SCSI RAID DRIVER
M: Adaptec OEM Raid Solutions <aacraid@adaptec.com>
F: arch/arm/mach-orion5x/
F: arch/arm/plat-orion/
+ARM/Orion SoC/Technologic Systems TS-78xx platform support
+M: Alexander Clouter <alex@digriz.org.uk>
+L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
+W: http://www.digriz.org.uk/ts78xx/kernel
+S: Maintained
+F: arch/arm/mach-orion5x/ts78xx-*
+
ARM/MIOA701 MACHINE SUPPORT
M: Robert Jarzmik <robert.jarzmik@free.fr>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
F: drivers/sh/
ARM/TELECHIPS ARM ARCHITECTURE
-M: "Hans J. Koch" <hjk@linutronix.de>
+M: "Hans J. Koch" <hjk@hansjkoch.de>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
S: Maintained
F: arch/arm/plat-tcc/
F: drivers/platform/x86/compal-laptop.c
COMPUTONE INTELLIPORT MULTIPORT CARD
-M: "Michael H. Warfield" <mhw@wittsend.com>
W: http://www.wittsend.com/computone.html
-S: Maintained
+S: Orphan
F: Documentation/serial/computone.txt
-F: drivers/char/ip2/
+F: drivers/staging/tty/ip2/
CONEXANT ACCESSRUNNER USB DRIVER
M: Simon Arlott <cxacru@fire.lp0.eu>
CYCLADES ASYNC MUX DRIVER
W: http://www.cyclades.com/
S: Orphan
-F: drivers/char/cyclades.c
+F: drivers/tty/cyclades.c
F: include/linux/cyclades.h
CYCLADES PC300 DRIVER
W: http://www.digi.com
S: Orphan
F: Documentation/serial/digiepca.txt
-F: drivers/char/epca*
-F: drivers/char/digi*
+F: drivers/staging/tty/epca*
+F: drivers/staging/tty/digi*
DIOLAN U2C-12 I2C DRIVER
M: Guenter Roeck <guenter.roeck@ericsson.com>
F: include/linux/matroxfb.h
MAX6650 HARDWARE MONITOR AND FAN CONTROLLER DRIVER
-M: "Hans J. Koch" <hjk@linutronix.de>
+M: "Hans J. Koch" <hjk@hansjkoch.de>
L: lm-sensors@lm-sensors.org
S: Maintained
F: Documentation/hwmon/max6650
M: Jiri Slaby <jirislaby@gmail.com>
S: Maintained
F: Documentation/serial/moxa-smartio
-F: drivers/char/mxser.*
+F: drivers/tty/mxser.*
MSI LAPTOP SUPPORT
M: "Lee, Chun-Yi" <jlee@novell.com>
MULTITECH MULTIPORT CARD (ISICOM)
S: Orphan
-F: drivers/char/isicom.c
+F: drivers/tty/isicom.c
F: include/linux/isicom.h
MUSB MULTIPOINT HIGH SPEED DUAL-ROLE CONTROLLER
RISCOM8 DRIVER
S: Orphan
F: Documentation/serial/riscom8.txt
-F: drivers/char/riscom8*
+F: drivers/staging/tty/riscom8*
ROCKETPORT DRIVER
P: Comtrol Corp.
W: http://www.comtrol.com
S: Maintained
F: Documentation/serial/rocket.txt
-F: drivers/char/rocket*
+F: drivers/tty/rocket*
ROSE NETWORK LAYER
M: Ralf Baechle <ralf@linux-mips.org>
F: arch/arm/mach-spear6xx/spear600_evb.c
SPECIALIX IO8+ MULTIPORT SERIAL CARD DRIVER
-M: Roger Wolff <R.E.Wolff@BitWizard.nl>
-S: Supported
+S: Orphan
F: Documentation/serial/specialix.txt
-F: drivers/char/specialix*
+F: drivers/staging/tty/specialix*
SPI SUBSYSTEM
M: David Brownell <dbrownell@users.sourceforge.net>
STABLE BRANCH
M: Greg Kroah-Hartman <greg@kroah.com>
-M: Chris Wright <chrisw@sous-sol.org>
L: stable@kernel.org
S: Maintained
W: http://www.uclinux.org/
L: uclinux-dev@uclinux.org (subscribers-only)
S: Maintained
-F: arch/m68knommu/
+F: arch/m68k/*/*_no.*
+F: arch/m68k/include/asm/*_no.*
UCLINUX FOR RENESAS H8/300 (H8300)
M: Yoshinori Sato <ysato@users.sourceforge.jp>
F: fs/hppfs/
USERSPACE I/O (UIO)
-M: "Hans J. Koch" <hjk@linutronix.de>
+M: "Hans J. Koch" <hjk@hansjkoch.de>
M: Greg Kroah-Hartman <gregkh@suse.de>
S: Maintained
F: Documentation/DocBook/uio-howto.tmpl
S: Maintained
F: drivers/platform/x86
+XEN NETWORK BACKEND DRIVER
+M: Ian Campbell <ian.campbell@citrix.com>
+L: xen-devel@lists.xensource.com (moderated for non-subscribers)
+L: netdev@vger.kernel.org
+S: Supported
+F: drivers/net/xen-netback/*
+
XEN PCI SUBSYSTEM
M: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
L: xen-devel@lists.xensource.com (moderated for non-subscribers)
VERSION = 2
PATCHLEVEL = 6
SUBLEVEL = 39
-EXTRAVERSION = -rc2
+EXTRAVERSION = -rc4
NAME = Flesh-Eating Bats with Fangs
# *DOCUMENTATION*
extra-y := head.o vmlinux.lds
asflags-y := $(KBUILD_CFLAGS)
-ccflags-y := -Werror -Wno-sign-compare
+ccflags-y := -Wno-sign-compare
obj-y := entry.o traps.o process.o init_task.o osf_sys.o irq.o \
irq_alpha.o signal.o setup.o ptrace.o time.o \
{
unsigned long flags;
unsigned long mid = MCPCIA_HOSE2MID(hose->index);
- unsigned int stat0, value, temp, cpu;
+ unsigned int stat0, value, cpu;
cpu = smp_processor_id();
stat0 = *(vuip)MCPCIA_CAP_ERR(mid);
*(vuip)MCPCIA_CAP_ERR(mid) = stat0;
mb();
- temp = *(vuip)MCPCIA_CAP_ERR(mid);
+ *(vuip)MCPCIA_CAP_ERR(mid);
DBG_CFG(("conf_read: MCPCIA_CAP_ERR(%d) was 0x%x\n", mid, stat0));
mb();
{
unsigned long flags;
unsigned long mid = MCPCIA_HOSE2MID(hose->index);
- unsigned int stat0, temp, cpu;
+ unsigned int stat0, cpu;
cpu = smp_processor_id();
/* Reset status register to avoid losing errors. */
stat0 = *(vuip)MCPCIA_CAP_ERR(mid);
*(vuip)MCPCIA_CAP_ERR(mid) = stat0; mb();
- temp = *(vuip)MCPCIA_CAP_ERR(mid);
+ *(vuip)MCPCIA_CAP_ERR(mid);
DBG_CFG(("conf_write: MCPCIA CAP_ERR(%d) was 0x%x\n", mid, stat0));
draina();
*((vuip)addr) = value;
mb();
mb(); /* magic */
- temp = *(vuip)MCPCIA_CAP_ERR(mid); /* read to force the write */
+ *(vuip)MCPCIA_CAP_ERR(mid); /* read to force the write */
mcheck_expected(cpu) = 0;
mb();
void
mcpcia_machine_check(unsigned long vector, unsigned long la_ptr)
{
- struct el_common *mchk_header;
struct el_MCPCIA_uncorrected_frame_mcheck *mchk_logout;
unsigned int cpu = smp_processor_id();
int expected;
- mchk_header = (struct el_common *)la_ptr;
mchk_logout = (struct el_MCPCIA_uncorrected_frame_mcheck *)la_ptr;
expected = mcheck_expected(cpu);
static struct el_subpacket *
el_process_regatta_subpacket(struct el_subpacket *header)
{
- int status;
-
if (header->class != EL_CLASS__REGATTA_FAMILY) {
printk("%s ** Unexpected header CLASS %d TYPE %d, aborting\n",
err_print_prefix,
printk("%s ** Occurred on CPU %d:\n",
err_print_prefix,
(int)header->by_type.regatta_frame.cpuid);
- status = privateer_process_logout_frame((struct el_common *)
+ privateer_process_logout_frame((struct el_common *)
header->by_type.regatta_frame.data_start, 1);
break;
default:
void __init
init_rtc_irq(void)
{
- irq_set_chip_and_handler_name(RTC_IRQ, &no_irq_chip,
+ irq_set_chip_and_handler_name(RTC_IRQ, &dummy_irq_chip,
handle_simple_irq, "RTC");
setup_irq(RTC_IRQ, &timer_irqaction);
}
case PCA56_CPU:
case PCA57_CPU:
{
- unsigned long cbox_config, size;
-
if (cpu_type == PCA56_CPU) {
L1I = CSHAPE(16*1024, 6, 1);
L1D = CSHAPE(8*1024, 5, 1);
}
L3 = -1;
+#if 0
+ unsigned long cbox_config, size;
+
cbox_config = *(vulp) phys_to_virt (0xfffff00008UL);
size = 512*1024 * (1 << ((cbox_config >> 12) & 3));
-#if 0
L2 = ((cbox_config >> 31) & 1 ? CSHAPE (size, 6, 1) : -1);
#else
L2 = external_cache_probe(512*1024, 6);
static unsigned long __init SMCConfigState(unsigned long baseAddr)
{
unsigned char devId;
- unsigned char devRev;
unsigned long configPort;
unsigned long indexPort;
devId = inb(dataPort);
if (devId == VALID_DEVICE_ID) {
outb(DEVICE_REV, indexPort);
- devRev = inb(dataPort);
+ /* unsigned char devRev = */ inb(dataPort);
break;
}
else
wildfire_init_irq_per_pca(int qbbno, int pcano)
{
int i, irq_bias;
- unsigned long io_bias;
static struct irqaction isa_enable = {
.handler = no_action,
.name = "isa_enable",
irq_bias = qbbno * (WILDFIRE_PCA_PER_QBB * WILDFIRE_IRQ_PER_PCA)
+ pcano * WILDFIRE_IRQ_PER_PCA;
+#if 0
+ unsigned long io_bias;
+
/* Only need the following for first PCI bus per PCA. */
io_bias = WILDFIRE_IO(qbbno, pcano<<1) - WILDFIRE_IO_BIAS;
-#if 0
outb(0, DMA1_RESET_REG + io_bias);
outb(0, DMA2_RESET_REG + io_bias);
outb(DMA_MODE_CASCADE, DMA2_MODE_REG + io_bias);
year += 100;
ts->tv_sec = mktime(year, mon, day, hour, min, sec);
+ ts->tv_nsec = 0;
}
config HIGHPTE
bool "Allocate 2nd-level pagetables from highmem"
depends on HIGHMEM
- depends on !OUTER_CACHE
config HW_PERF_EVENTS
bool "Enable hardware performance counter support for perf events"
config ARCH_SUSPEND_POSSIBLE
depends on !ARCH_S5P64X0 && !ARCH_S5P6442
+ depends on CPU_ARM920T || CPU_ARM926T || CPU_SA1100 || \
+ CPU_V6 || CPU_V6K || CPU_V7 || CPU_XSC3 || CPU_XSCALE
def_bool y
endmenu
8 - SIGSEGV faults
16 - SIGBUS faults
-config DEBUG_ERRORS
- bool "Verbose kernel error messages"
- depends on DEBUG_KERNEL
- help
- This option controls verbose debugging information which can be
- printed when the kernel detects an internal error. This debugging
- information is useful to kernel hackers when tracking down problems,
- but mostly meaningless to other people. It's safe to say Y unless
- you are concerned with the code size or don't want to see these
- messages.
-
config DEBUG_STACK_USAGE
bool "Enable stack utilization instrumentation"
depends on DEBUG_KERNEL
obj-$(CONFIG_ARCH_IXP2000) += uengine.o
obj-$(CONFIG_ARCH_IXP23XX) += uengine.o
obj-$(CONFIG_PCI_HOST_ITE8152) += it8152.o
-obj-$(CONFIG_COMMON_CLKDEV) += clkdev.o
obj-$(CONFIG_ARM_TIMER_SP804) += timer-sp.o
#define __ASM_ARM_CPUTYPE_H
#include <linux/stringify.h>
+#include <linux/kernel.h>
#define CPUID_ID 0
#define CPUID_CACHETYPE 1
#define THREAD_NOTIFY_FLUSH 0
#define THREAD_NOTIFY_EXIT 1
#define THREAD_NOTIFY_SWITCH 2
+#define THREAD_NOTIFY_COPY 3
#endif
#endif
#define __NR_fanotify_init (__NR_SYSCALL_BASE+367)
#define __NR_fanotify_mark (__NR_SYSCALL_BASE+368)
#define __NR_prlimit64 (__NR_SYSCALL_BASE+369)
+#define __NR_name_to_handle_at (__NR_SYSCALL_BASE+370)
+#define __NR_open_by_handle_at (__NR_SYSCALL_BASE+371)
+#define __NR_clock_adjtime (__NR_SYSCALL_BASE+372)
+#define __NR_syncfs (__NR_SYSCALL_BASE+373)
/*
* The following SWIs are ARM private.
obj-$(CONFIG_ARTHUR) += arthur.o
obj-$(CONFIG_ISA_DMA) += dma-isa.o
obj-$(CONFIG_PCI) += bios32.o isa.o
-obj-$(CONFIG_PM) += sleep.o
+obj-$(CONFIG_PM_SLEEP) += sleep.o
obj-$(CONFIG_HAVE_SCHED_CLOCK) += sched_clock.o
obj-$(CONFIG_SMP) += smp.o smp_tlb.o
obj-$(CONFIG_HAVE_ARM_SCU) += smp_scu.o
CALL(sys_fanotify_init)
CALL(sys_fanotify_mark)
CALL(sys_prlimit64)
+/* 370 */ CALL(sys_name_to_handle_at)
+ CALL(sys_open_by_handle_at)
+ CALL(sys_clock_adjtime)
+ CALL(sys_syncfs)
#ifndef syscalls_counted
.equ syscalls_padding, ((NR_syscalls + 3) & ~3) - NR_syscalls
#define syscalls_counted
void elf_set_personality(const struct elf32_hdr *x)
{
unsigned int eflags = x->e_flags;
- unsigned int personality = PER_LINUX_32BIT;
+ unsigned int personality = current->personality & ~PER_MASK;
+
+ /*
+ * We only support Linux ELF executables, so always set the
+ * personality to LINUX.
+ */
+ personality |= PER_LINUX;
/*
* APCS-26 is only valid for OABI executables
*/
- if ((eflags & EF_ARM_EABI_MASK) == EF_ARM_EABI_UNKNOWN) {
- if (eflags & EF_ARM_APCS_26)
- personality = PER_LINUX;
- }
+ if ((eflags & EF_ARM_EABI_MASK) == EF_ARM_EABI_UNKNOWN &&
+ (eflags & EF_ARM_APCS_26))
+ personality &= ~ADDR_LIMIT_32BIT;
+ else
+ personality |= ADDR_LIMIT_32BIT;
set_personality(personality);
*/
asm volatile("mcr p14, 0, %0, c1, c0, 4" : : "r" (0));
isb();
+
+ /*
+ * Clear any configured vector-catch events before
+ * enabling monitor mode.
+ */
+ asm volatile("mcr p14, 0, %0, c0, c7, 0" : : "r" (0));
+ isb();
}
if (enable_monitor_mode())
prev_raw_count &= armpmu->max_period;
if (overflow)
- delta = armpmu->max_period - prev_raw_count + new_raw_count;
+ delta = armpmu->max_period - prev_raw_count + new_raw_count + 1;
else
delta = new_raw_count - prev_raw_count;
if (clone_flags & CLONE_SETTLS)
thread->tp_value = regs->ARM_r3;
+ thread_notify(THREAD_NOTIFY_COPY, thread);
+
return 0;
}
struct thread_info *thread = current_thread_info();
siginfo_t info;
- if (current->personality != PER_LINUX &&
- current->personality != PER_LINUX_32BIT &&
+ if ((current->personality & PER_MASK) != PER_LINUX &&
thread->exec_domain->handler) {
thread->exec_domain->handler(n, regs);
return regs->ARM_r0;
#define BANK_OFF(n) (((n) < 3) ? (n) << 2 : 0x100 + (((n) - 3) << 2))
#define GPIO_REG(x) (*((volatile u32 *)(GPIO_REGS_VIRT + (x))))
-#define NR_BUILTIN_GPIO (192)
+#define NR_BUILTIN_GPIO IRQ_GPIO_NUM
#define gpio_to_bank(gpio) ((gpio) >> 5)
#define gpio_to_irq(gpio) (IRQ_GPIO_START + (gpio))
#define MFP_DRIVE_MEDIUM (0x2 << 13)
#define MFP_DRIVE_FAST (0x3 << 13)
+#undef MFP_CFG
+#undef MFP_CFG_DRV
+
+#define MFP_CFG(pin, af) \
+ (MFP_LPM_INPUT | MFP_PIN(MFP_PIN_##pin) | MFP_##af | MFP_DRIVE_MEDIUM)
+
+#define MFP_CFG_DRV(pin, af, drv) \
+ (MFP_LPM_INPUT | MFP_PIN(MFP_PIN_##pin) | MFP_##af | MFP_DRIVE_##drv)
+
/* GPIO */
#define GPIO0_GPIO MFP_CFG(GPIO0, AF5)
#define GPIO1_GPIO MFP_CFG(GPIO1, AF5)
static void __init qsd8x50_init_mmc(void)
{
- if (machine_is_qsd8x50_ffa() || machine_is_qsd8x50a_ffa())
- vreg_mmc = vreg_get(NULL, "gp6");
- else
- vreg_mmc = vreg_get(NULL, "gp5");
+ vreg_mmc = vreg_get(NULL, "gp5");
if (IS_ERR(vreg_mmc)) {
pr_err("vreg get for vreg_mmc failed (%ld)\n",
/* Use existing clock_event for cpu 0 */
if (!smp_processor_id())
- return;
+ return 0;
writel(DGT_CLK_CTL_DIV_4, MSM_TMR_BASE + DGT_CLK_CTL);
#define GAFR(x) GPIO_REG(0x54 + (((x) & 0x70) >> 2))
-#define NR_BUILTIN_GPIO 128
+#define NR_BUILTIN_GPIO PXA_GPIO_IRQ_NUM
#define gpio_to_bank(gpio) ((gpio) >> 5)
#define gpio_to_irq(gpio) IRQ_GPIO(gpio)
-#define irq_to_gpio(irq) IRQ_TO_GPIO(irq)
+
+static inline int irq_to_gpio(unsigned int irq)
+{
+ int gpio;
+
+ if (irq == IRQ_GPIO0 || irq == IRQ_GPIO1)
+ return irq - IRQ_GPIO0;
+
+ gpio = irq - PXA_GPIO_IRQ_BASE;
+ if (gpio >= 2 && gpio < NR_BUILTIN_GPIO)
+ return gpio;
+
+ return -1;
+}
#ifdef CONFIG_CPU_PXA26x
/* GPIO86/87/88/89 on PXA26x have their direction bits in GPDR2 inverted,
#define GPIO_2_x_TO_IRQ(x) (PXA_GPIO_IRQ_BASE + (x))
#define IRQ_GPIO(x) (((x) < 2) ? (IRQ_GPIO0 + (x)) : GPIO_2_x_TO_IRQ(x))
-#define IRQ_TO_GPIO_2_x(i) ((i) - PXA_GPIO_IRQ_BASE)
-#define IRQ_TO_GPIO(i) (((i) < IRQ_GPIO(2)) ? ((i) - IRQ_GPIO0) : IRQ_TO_GPIO_2_x(i))
-
/*
* The following interrupts are for board specific purposes. Since
* the kernel can only run on one machine at a time, we can re-use
static int pxa25x_set_wake(struct irq_data *d, unsigned int on)
{
- int gpio = IRQ_TO_GPIO(d->irq);
+ int gpio = irq_to_gpio(d->irq);
uint32_t mask = 0;
if (gpio >= 0 && gpio < 85)
*/
static int pxa27x_set_wake(struct irq_data *d, unsigned int on)
{
- int gpio = IRQ_TO_GPIO(d->irq);
+ int gpio = irq_to_gpio(d->irq);
uint32_t mask;
if (gpio >= 0 && gpio < 128)
void tegra_gpio_resume(void)
{
unsigned long flags;
- int b, p, i;
+ int b;
+ int p;
local_irq_save(flags);
void tegra_gpio_suspend(void)
{
unsigned long flags;
- int b, p, i;
+ int b;
+ int p;
local_irq_save(flags);
for (b = 0; b < ARRAY_SIZE(tegra_gpio_banks); b++) {
{
unsigned long flags;
int ret;
+ long new_rate = rate;
- rate = clk_round_rate(c->parent, rate);
- if (rate < 0)
- return rate;
+ new_rate = clk_round_rate(c->parent, new_rate);
+ if (new_rate < 0)
+ return new_rate;
spin_lock_irqsave(&c->parent->spinlock, flags);
- c->u.shared_bus_user.rate = rate;
+ c->u.shared_bus_user.rate = new_rate;
ret = tegra_clk_shared_bus_update(c->parent);
spin_unlock_irqrestore(&c->parent->spinlock, flags);
#include <linux/shm.h>
#include <linux/sched.h>
#include <linux/io.h>
+#include <linux/personality.h>
#include <linux/random.h>
#include <asm/cputype.h>
#include <asm/system.h>
mm->cached_hole_size = 0;
}
/* 8 bits of randomness in 20 address space bits */
- if (current->flags & PF_RANDOMIZE)
+ if ((current->flags & PF_RANDOMIZE) &&
+ !(current->personality & ADDR_NO_RANDOMIZE))
addr += (get_random_int() % (1 << 8)) << PAGE_SHIFT;
full_search:
/* Suspend/resume support: taken from arch/arm/plat-s3c24xx/sleep.S */
.globl cpu_arm920_suspend_size
.equ cpu_arm920_suspend_size, 4 * 3
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
ENTRY(cpu_arm920_do_suspend)
stmfd sp!, {r4 - r7, lr}
mrc p15, 0, r4, c13, c0, 0 @ PID
/* Suspend/resume support: taken from arch/arm/plat-s3c24xx/sleep.S */
.globl cpu_arm926_suspend_size
.equ cpu_arm926_suspend_size, 4 * 3
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
ENTRY(cpu_arm926_do_suspend)
stmfd sp!, {r4 - r7, lr}
mrc p15, 0, r4, c13, c0, 0 @ PID
.globl cpu_sa1100_suspend_size
.equ cpu_sa1100_suspend_size, 4*4
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
ENTRY(cpu_sa1100_do_suspend)
stmfd sp!, {r4 - r7, lr}
mrc p15, 0, r4, c3, c0, 0 @ domain ID
/* Suspend/resume support: taken from arch/arm/mach-s3c64xx/sleep.S */
.globl cpu_v6_suspend_size
.equ cpu_v6_suspend_size, 4 * 8
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
ENTRY(cpu_v6_do_suspend)
stmfd sp!, {r4 - r11, lr}
mrc p15, 0, r4, c13, c0, 0 @ FCSE/PID
/* Suspend/resume support: derived from arch/arm/mach-s5pv210/sleep.S */
.globl cpu_v7_suspend_size
.equ cpu_v7_suspend_size, 4 * 8
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
ENTRY(cpu_v7_do_suspend)
stmfd sp!, {r4 - r11, lr}
mrc p15, 0, r4, c13, c0, 0 @ FCSE/PID
.globl cpu_xsc3_suspend_size
.equ cpu_xsc3_suspend_size, 4 * 8
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
ENTRY(cpu_xsc3_do_suspend)
stmfd sp!, {r4 - r10, lr}
mrc p14, 0, r4, c6, c0, 0 @ clock configuration, for turbo mode
.globl cpu_xscale_suspend_size
.equ cpu_xscale_suspend_size, 4 * 7
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
ENTRY(cpu_xscale_do_suspend)
stmfd sp!, {r4 - r10, lr}
mrc p14, 0, r4, c6, c0, 0 @ clock configuration, for turbo mode
#define PFX "s5p pm: "
-/* s3c_pm_check_resume_pin
- *
- * check to see if the pin is configured correctly for sleep mode, and
- * make any necessary adjustments if it is not
-*/
-
-static void s3c_pm_check_resume_pin(unsigned int pin, unsigned int irqoffs)
-{
- /* nothing here yet */
-}
-
/* s3c_pm_configure_extint
*
* configure all external interrupt pins
*/
static u32 *s3c_pm_runcheck(struct resource *res, u32 *val)
{
- void *save_at = phys_to_virt(s3c_sleep_save_phys);
unsigned long addr;
unsigned long left;
void *stkpage;
goto skip_check;
}
- if (in_region(ptr, left, save_at, 32*4 )) {
- S3C_PMDBG("skipping %08lx, has save block in\n", addr);
- goto skip_check;
- }
-
/* calculate and check the checksum */
calc = crc32_le(~0, ptr, left);
*
* print any IRQs asserted at resume time (ie, we woke from)
*/
-static void s3c_pm_show_resume_irqs(int start, unsigned long which,
- unsigned long mask)
+static void __maybe_unused s3c_pm_show_resume_irqs(int start,
+ unsigned long which,
+ unsigned long mask)
{
int i;
put_cpu();
}
+static void vfp_thread_copy(struct thread_info *thread)
+{
+ struct thread_info *parent = current_thread_info();
+
+ vfp_sync_hwstate(parent);
+ thread->vfpstate = parent->vfpstate;
+}
+
/*
* When this function is called with the following 'cmd's, the following
* is true while this function is being run:
static int vfp_notifier(struct notifier_block *self, unsigned long cmd, void *v)
{
struct thread_info *thread = v;
+ u32 fpexc;
+#ifdef CONFIG_SMP
+ unsigned int cpu;
+#endif
- if (likely(cmd == THREAD_NOTIFY_SWITCH)) {
- u32 fpexc = fmrx(FPEXC);
+ switch (cmd) {
+ case THREAD_NOTIFY_SWITCH:
+ fpexc = fmrx(FPEXC);
#ifdef CONFIG_SMP
- unsigned int cpu = thread->cpu;
+ cpu = thread->cpu;
/*
* On SMP, if VFP is enabled, save the old state in
* old state.
*/
fmxr(FPEXC, fpexc & ~FPEXC_EN);
- return NOTIFY_DONE;
- }
+ break;
- if (cmd == THREAD_NOTIFY_FLUSH)
+ case THREAD_NOTIFY_FLUSH:
vfp_thread_flush(thread);
- else
+ break;
+
+ case THREAD_NOTIFY_EXIT:
vfp_thread_exit(thread);
+ break;
+
+ case THREAD_NOTIFY_COPY:
+ vfp_thread_copy(thread);
+ break;
+ }
return NOTIFY_DONE;
}
#define ETH_INVALID_PHY 0xff
+/* board information */
+#define ATAG_BOARDINFO 0x54410008
+
+struct tag_boardinfo {
+ u32 board_number;
+};
+
struct tag {
struct tag_header hdr;
union {
struct tag_cmdline cmdline;
struct tag_clock clock;
struct tag_ethernet ethernet;
+ struct tag_boardinfo boardinfo;
} u;
};
extern resource_size_t fbmem_start;
extern resource_size_t fbmem_size;
+extern u32 board_number;
void setup_processor(void);
}
__tagtable(ATAG_CLOCK, parse_tag_clock);
+/*
+ * The board_number correspond to the bd->bi_board_number in U-Boot. This
+ * parameter is only available during initialisation and can be used in some
+ * kind of board identification.
+ */
+u32 __initdata board_number;
+
+static int __init parse_tag_boardinfo(struct tag *tag)
+{
+ board_number = tag->u.boardinfo.board_number;
+
+ return 0;
+}
+__tagtable(ATAG_BOARDINFO, parse_tag_boardinfo);
+
/*
* Scan the tag table for this tag, and call its parse function. The
* tag table is built by the linker from all the __tagtable
info.si_code = code;
info.si_addr = (void __user *)addr;
force_sig_info(signr, &info, current);
-
- /*
- * Init gets no signals that it doesn't have a handler for.
- * That's all very well, but if it has caused a synchronous
- * exception and we ignore the resulting signal, it will just
- * generate the same exception over and over again and we get
- * nowhere. Better to kill it and let the kernel panic.
- */
- if (is_global_init(current)) {
- __sighandler_t handler;
-
- spin_lock_irq(¤t->sighand->siglock);
- handler = current->sighand->action[signr-1].sa.sa_handler;
- spin_unlock_irq(¤t->sighand->siglock);
- if (handler == SIG_DFL) {
- /* init has generated a synchronous exception
- and it doesn't have a handler for the signal */
- printk(KERN_CRIT "init has generated signal %ld "
- "but has no handler for it\n", signr);
- do_exit(signr);
- }
- }
}
asmlinkage void do_nmi(unsigned long ecr, struct pt_regs *regs)
spin_unlock(&clk_list_lock);
}
-struct clk *clk_get(struct device *dev, const char *id)
+static struct clk *__clk_get(struct device *dev, const char *id)
{
struct clk *clk;
- spin_lock(&clk_list_lock);
-
list_for_each_entry(clk, &at32_clock_list, list) {
if (clk->dev == dev && strcmp(id, clk->name) == 0) {
- spin_unlock(&clk_list_lock);
return clk;
}
}
- spin_unlock(&clk_list_lock);
return ERR_PTR(-ENOENT);
}
+
+struct clk *clk_get(struct device *dev, const char *id)
+{
+ struct clk *clk;
+
+ spin_lock(&clk_list_lock);
+ clk = __clk_get(dev, id);
+ spin_unlock(&clk_list_lock);
+
+ return clk;
+}
+
EXPORT_SYMBOL(clk_get);
void clk_put(struct clk *clk)
spin_lock(&clk_list_lock);
/* show clock tree as derived from the three oscillators */
- clk = clk_get(NULL, "osc32k");
+ clk = __clk_get(NULL, "osc32k");
dump_clock(clk, &r);
clk_put(clk);
- clk = clk_get(NULL, "osc0");
+ clk = __clk_get(NULL, "osc0");
dump_clock(clk, &r);
clk_put(clk);
- clk = clk_get(NULL, "osc1");
+ clk = __clk_get(NULL, "osc1");
dump_clock(clk, &r);
clk_put(clk);
static struct eic *nmi_eic;
static bool nmi_enabled;
-static void eic_ack_irq(struct irq_chip *d)
+static void eic_ack_irq(struct irq_data *d)
{
- struct eic *eic = irq_data_get_irq_chip_data(data);
+ struct eic *eic = irq_data_get_irq_chip_data(d);
eic_writel(eic, ICR, 1 << (d->irq - eic->first_irq));
}
-static void eic_mask_irq(struct irq_chip *d)
+static void eic_mask_irq(struct irq_data *d)
{
- struct eic *eic = irq_data_get_irq_chip_data(data);
+ struct eic *eic = irq_data_get_irq_chip_data(d);
eic_writel(eic, IDR, 1 << (d->irq - eic->first_irq));
}
-static void eic_mask_ack_irq(struct irq_chip *d)
+static void eic_mask_ack_irq(struct irq_data *d)
{
- struct eic *eic = irq_data_get_irq_chip_data(data);
+ struct eic *eic = irq_data_get_irq_chip_data(d);
eic_writel(eic, ICR, 1 << (d->irq - eic->first_irq));
eic_writel(eic, IDR, 1 << (d->irq - eic->first_irq));
}
-static void eic_unmask_irq(struct irq_chip *d)
+static void eic_unmask_irq(struct irq_data *d)
{
- struct eic *eic = irq_data_get_irq_chip_data(data);
+ struct eic *eic = irq_data_get_irq_chip_data(d);
eic_writel(eic, IER, 1 << (d->irq - eic->first_irq));
}
-static int eic_set_irq_type(struct irq_chip *d, unsigned int flow_type)
+static int eic_set_irq_type(struct irq_data *d, unsigned int flow_type)
{
- struct eic *eic = irq_data_get_irq_chip_data(data);
+ struct eic *eic = irq_data_get_irq_chip_data(d);
unsigned int irq = d->irq;
unsigned int i = irq - eic->first_irq;
u32 mode, edge, level;
regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
int_irq = platform_get_irq(pdev, 0);
- if (!regs || !int_irq) {
+ if (!regs || (int)int_irq <= 0) {
dev_dbg(&pdev->dev, "missing regs and/or irq resource\n");
return -ENXIO;
}
pio_writel(pio, IDR, 1 << (gpio & 0x1f));
}
-static void gpio_irq_unmask(struct irq_data *d))
+static void gpio_irq_unmask(struct irq_data *d)
{
unsigned gpio = irq_to_gpio(d->irq);
struct pio_device *pio = &pio_dev[gpio >> 5];
st.w r8[TI_flags], r9
unmask_interrupts
sleep CPU_SLEEP_IDLE
- .size cpu_idle_sleep, . - cpu_idle_sleep
+ .size cpu_enter_idle, . - cpu_enter_idle
/*
* Common return path for PM functions that don't run from
* Force strict CPU ordering.
*/
#define nop() __asm__ __volatile__ ("nop;\n\t" : : )
-#define mb() __asm__ __volatile__ ("" : : : "memory")
-#define rmb() __asm__ __volatile__ ("" : : : "memory")
-#define wmb() __asm__ __volatile__ ("" : : : "memory")
-#define set_mb(var, value) do { (void) xchg(&var, value); } while (0)
-#define read_barrier_depends() do { } while(0)
+#define smp_mb() mb()
+#define smp_rmb() rmb()
+#define smp_wmb() wmb()
+#define set_mb(var, value) do { var = value; mb(); } while (0)
+#define smp_read_barrier_depends() read_barrier_depends()
#ifdef CONFIG_SMP
asmlinkage unsigned long __raw_xchg_1_asm(volatile void *ptr, unsigned long value);
unsigned long new, unsigned long old);
#ifdef __ARCH_SYNC_CORE_DCACHE
-# define smp_mb() do { barrier(); smp_check_barrier(); smp_mark_barrier(); } while (0)
-# define smp_rmb() do { barrier(); smp_check_barrier(); } while (0)
-# define smp_wmb() do { barrier(); smp_mark_barrier(); } while (0)
-#define smp_read_barrier_depends() do { barrier(); smp_check_barrier(); } while (0)
-
+/* Force Core data cache coherence */
+# define mb() do { barrier(); smp_check_barrier(); smp_mark_barrier(); } while (0)
+# define rmb() do { barrier(); smp_check_barrier(); } while (0)
+# define wmb() do { barrier(); smp_mark_barrier(); } while (0)
+# define read_barrier_depends() do { barrier(); smp_check_barrier(); } while (0)
#else
-# define smp_mb() barrier()
-# define smp_rmb() barrier()
-# define smp_wmb() barrier()
-#define smp_read_barrier_depends() barrier()
+# define mb() barrier()
+# define rmb() barrier()
+# define wmb() barrier()
+# define read_barrier_depends() do { } while (0)
#endif
static inline unsigned long __xchg(unsigned long x, volatile void *ptr,
#else /* !CONFIG_SMP */
-#define smp_mb() barrier()
-#define smp_rmb() barrier()
-#define smp_wmb() barrier()
-#define smp_read_barrier_depends() do { } while(0)
+#define mb() barrier()
+#define rmb() barrier()
+#define wmb() barrier()
+#define read_barrier_depends() do { } while (0)
struct __xchg_dummy {
unsigned long a[100];
_disable_gptimers(mask);
for (i = 0; i < MAX_BLACKFIN_GPTIMERS; ++i)
if (mask & (1 << i))
- group_regs[BFIN_TIMER_OCTET(i)]->status |= trun_mask[i];
+ group_regs[BFIN_TIMER_OCTET(i)]->status = trun_mask[i];
SSYNC();
}
EXPORT_SYMBOL(disable_gptimers);
{
struct clock_event_device *evt = dev_id;
smp_mb();
- evt->event_handler(evt);
+ /*
+ * We want to ACK before we handle so that we can handle smaller timer
+ * intervals. This way if the timer expires again while we're handling
+ * things, we're more likely to see that 2nd int rather than swallowing
+ * it by ACKing the int at the end of this handler.
+ */
bfin_gptmr0_ack();
+ evt->event_handler(evt);
return IRQ_HANDLED;
}
struct blackfin_flush_data *fdata = info;
/* Invalidate the memory holding the bounds of the flushed region. */
- invalidate_dcache_range((unsigned long)fdata,
- (unsigned long)fdata + sizeof(*fdata));
+ blackfin_dcache_invalidate_range((unsigned long)fdata,
+ (unsigned long)fdata + sizeof(*fdata));
+
+ /* Make sure all write buffers in the data side of the core
+ * are flushed before trying to invalidate the icache. This
+ * needs to be after the data flush and before the icache
+ * flush so that the SSYNC does the right thing in preventing
+ * the instruction prefetcher from hitting things in cached
+ * memory at the wrong time -- it runs much further ahead than
+ * the pipeline.
+ */
+ SSYNC();
- flush_icache_range(fdata->start, fdata->end);
+ /* ipi_flaush_icache is invoked by generic flush_icache_range,
+ * so call blackfin arch icache flush directly here.
+ */
+ blackfin_icache_flush_range(fdata->start, fdata->end);
}
static void ipi_call_function(unsigned int cpu, struct ipi_message *msg)
#define __NR_fanotify_init 337
#define __NR_fanotify_mark 338
#define __NR_prlimit64 339
+#define __NR_name_to_handle_at 340
+#define __NR_open_by_handle_at 341
+#define __NR_clock_adjtime 342
+#define __NR_syncfs 343
#ifdef __KERNEL__
-#define NR_syscalls 340
+#define NR_syscalls 344
#define __ARCH_WANT_IPC_PARSE_VERSION
#define __ARCH_WANT_OLD_READDIR
.long sys_fanotify_init
.long sys_fanotify_mark
.long sys_prlimit64
+ .long sys_name_to_handle_at /* 340 */
+ .long sys_open_by_handle_at
+ .long sys_clock_adjtime
+ .long sys_syncfs
.long sys_fanotify_init
.long sys_fanotify_mark
.long sys_prlimit64
+ .long sys_name_to_handle_at /* 340 */
+ .long sys_open_by_handle_at
+ .long sys_clock_adjtime
+ .long sys_syncfs
.rept NR_syscalls-(.-sys_call_table)/4
.long sys_ni_syscall
select HAVE_FUNCTION_GRAPH_TRACER
select HAVE_DYNAMIC_FTRACE
select HAVE_FTRACE_MCOUNT_RECORD
- select USB_ARCH_HAS_EHCI
select ARCH_WANT_OPTIONAL_GPIOLIB
select HAVE_OPROFILE
select HAVE_ARCH_KGDB
config ARCH_SUSPEND_POSSIBLE
def_bool y
depends on ADB_PMU || PPC_EFIKA || PPC_LITE5200 || PPC_83xx || \
- PPC_85xx || PPC_86xx || PPC_PSERIES || 44x || 40x
+ (PPC_85xx && !SMP) || PPC_86xx || PPC_PSERIES || 44x || 40x
config PPC_DCR_NATIVE
bool
#define CPU_FTRS_E500_2 (CPU_FTR_MAYBE_CAN_DOZE | CPU_FTR_USE_TB | \
CPU_FTR_SPE_COMP | CPU_FTR_MAYBE_CAN_NAP | \
CPU_FTR_NODSISRALIGN | CPU_FTR_NOEXECUTE)
-#define CPU_FTRS_E500MC (CPU_FTR_MAYBE_CAN_DOZE | CPU_FTR_USE_TB | \
- CPU_FTR_MAYBE_CAN_NAP | CPU_FTR_NODSISRALIGN | \
+#define CPU_FTRS_E500MC (CPU_FTR_USE_TB | CPU_FTR_NODSISRALIGN | \
CPU_FTR_L2CSR | CPU_FTR_LWSYNC | CPU_FTR_NOEXECUTE | \
CPU_FTR_DBELL)
+#define CPU_FTRS_E5500 (CPU_FTR_USE_TB | CPU_FTR_NODSISRALIGN | \
+ CPU_FTR_L2CSR | CPU_FTR_LWSYNC | CPU_FTR_NOEXECUTE | \
+ CPU_FTR_DBELL | CPU_FTR_POPCNTB | CPU_FTR_POPCNTD)
#define CPU_FTRS_GENERIC_32 (CPU_FTR_COMMON | CPU_FTR_NODSISRALIGN)
/* 64-bit CPUs */
#define CPU_FTRS_COMPATIBLE (CPU_FTR_USE_TB | CPU_FTR_PPCAS_ARCH_V2)
#ifdef __powerpc64__
+#ifdef CONFIG_PPC_BOOK3E
+#define CPU_FTRS_POSSIBLE (CPU_FTRS_E5500)
+#else
#define CPU_FTRS_POSSIBLE \
(CPU_FTRS_POWER3 | CPU_FTRS_RS64 | CPU_FTRS_POWER4 | \
CPU_FTRS_PPC970 | CPU_FTRS_POWER5 | CPU_FTRS_POWER6 | \
CPU_FTRS_POWER7 | CPU_FTRS_CELL | CPU_FTRS_PA6T | \
CPU_FTR_1T_SEGMENT | CPU_FTR_VSX)
+#endif
#else
enum {
CPU_FTRS_POSSIBLE =
#endif
#ifdef CONFIG_E500
CPU_FTRS_E500 | CPU_FTRS_E500_2 | CPU_FTRS_E500MC |
+ CPU_FTRS_E5500 |
#endif
0,
};
#endif /* __powerpc64__ */
#ifdef __powerpc64__
+#ifdef CONFIG_PPC_BOOK3E
+#define CPU_FTRS_ALWAYS (CPU_FTRS_E5500)
+#else
#define CPU_FTRS_ALWAYS \
(CPU_FTRS_POWER3 & CPU_FTRS_RS64 & CPU_FTRS_POWER4 & \
CPU_FTRS_PPC970 & CPU_FTRS_POWER5 & CPU_FTRS_POWER6 & \
CPU_FTRS_POWER7 & CPU_FTRS_CELL & CPU_FTRS_PA6T & CPU_FTRS_POSSIBLE)
+#endif
#else
enum {
CPU_FTRS_ALWAYS =
#endif
#ifdef CONFIG_E500
CPU_FTRS_E500 & CPU_FTRS_E500_2 & CPU_FTRS_E500MC &
+ CPU_FTRS_E5500 &
#endif
CPU_FTRS_POSSIBLE,
};
* on platforms where such control is possible.
*/
#if defined(CONFIG_KGDB) || defined(CONFIG_XMON) || defined(CONFIG_BDI_SWITCH) ||\
- defined(CONFIG_KPROBES)
+ defined(CONFIG_KPROBES) || defined(CONFIG_DYNAMIC_FTRACE)
#define PAGE_KERNEL_TEXT PAGE_KERNEL_X
#else
#define PAGE_KERNEL_TEXT PAGE_KERNEL_ROX
.pvr_mask = 0xffff0000,
.pvr_value = 0x80240000,
.cpu_name = "e5500",
- .cpu_features = CPU_FTRS_E500MC,
+ .cpu_features = CPU_FTRS_E5500,
.cpu_user_features = COMMON_USER_BOOKE,
.mmu_features = MMU_FTR_TYPE_FSL_E | MMU_FTR_BIG_PHYS |
MMU_FTR_USE_TLBILX,
}
/* wait for all the CPUs to hit real mode but timeout if they don't come in */
-#if defined(CONFIG_PPC_STD_MMU_64) && defined(CONFIG_SMP)
+#ifdef CONFIG_PPC_STD_MMU_64
static void crash_kexec_wait_realmode(int cpu)
{
unsigned int msecs;
}
mb();
}
-#else
-static inline void crash_kexec_wait_realmode(int cpu) {}
-#endif
+#endif /* CONFIG_PPC_STD_MMU_64 */
/*
* This function will be called by secondary cpus or by kexec cpu
crash_ipi_callback(regs);
}
-#else
+#else /* ! CONFIG_SMP */
+static inline void crash_kexec_wait_realmode(int cpu) {}
+
static void crash_kexec_prepare_cpus(int cpu)
{
/*
{
cpus_in_sr = CPU_MASK_NONE;
}
-#endif
+#endif /* CONFIG_SMP */
/*
* Register a function to be called on shutdown. Only use this if you
#endif /* !CONFIG_SUSPEND */
-#ifdef CONFIG_HIBERNATION
+#ifdef CONFIG_HIBERNATE_CALLBACKS
static int ibmebus_bus_pm_freeze(struct device *dev)
{
return ret;
}
-#else /* !CONFIG_HIBERNATION */
+#else /* !CONFIG_HIBERNATE_CALLBACKS */
#define ibmebus_bus_pm_freeze NULL
#define ibmebus_bus_pm_thaw NULL
#define ibmebus_bus_pm_poweroff_noirq NULL
#define ibmebus_bus_pm_restore_noirq NULL
-#endif /* !CONFIG_HIBERNATION */
+#endif /* !CONFIG_HIBERNATE_CALLBACKS */
static struct dev_pm_ops ibmebus_bus_dev_pm_ops = {
.prepare = ibmebus_bus_pm_prepare,
if (!parent)
continue;
if (of_match_node(legacy_serial_parents, parent) != NULL) {
- index = add_legacy_soc_port(np, np);
- if (index >= 0 && np == stdout)
- legacy_serial_console = index;
+ if (of_device_is_available(np)) {
+ index = add_legacy_soc_port(np, np);
+ if (index >= 0 && np == stdout)
+ legacy_serial_console = index;
+ }
}
of_node_put(parent);
}
return 0;
}
+static u64 check_and_compute_delta(u64 prev, u64 val)
+{
+ u64 delta = (val - prev) & 0xfffffffful;
+
+ /*
+ * POWER7 can roll back counter values, if the new value is smaller
+ * than the previous value it will cause the delta and the counter to
+ * have bogus values unless we rolled a counter over. If a coutner is
+ * rolled back, it will be smaller, but within 256, which is the maximum
+ * number of events to rollback at once. If we dectect a rollback
+ * return 0. This can lead to a small lack of precision in the
+ * counters.
+ */
+ if (prev > val && (prev - val) < 256)
+ delta = 0;
+
+ return delta;
+}
+
static void power_pmu_read(struct perf_event *event)
{
s64 val, delta, prev;
prev = local64_read(&event->hw.prev_count);
barrier();
val = read_pmc(event->hw.idx);
+ delta = check_and_compute_delta(prev, val);
+ if (!delta)
+ return;
} while (local64_cmpxchg(&event->hw.prev_count, prev, val) != prev);
- /* The counters are only 32 bits wide */
- delta = (val - prev) & 0xfffffffful;
local64_add(delta, &event->count);
local64_sub(delta, &event->hw.period_left);
}
val = (event->hw.idx == 5) ? pmc5 : pmc6;
prev = local64_read(&event->hw.prev_count);
event->hw.idx = 0;
- delta = (val - prev) & 0xfffffffful;
- local64_add(delta, &event->count);
+ delta = check_and_compute_delta(prev, val);
+ if (delta)
+ local64_add(delta, &event->count);
}
}
unsigned long pmc5, unsigned long pmc6)
{
struct perf_event *event;
- u64 val;
+ u64 val, prev;
int i;
for (i = 0; i < cpuhw->n_limited; ++i) {
event = cpuhw->limited_counter[i];
event->hw.idx = cpuhw->limited_hwidx[i];
val = (event->hw.idx == 5) ? pmc5 : pmc6;
- local64_set(&event->hw.prev_count, val);
+ prev = local64_read(&event->hw.prev_count);
+ if (check_and_compute_delta(prev, val))
+ local64_set(&event->hw.prev_count, val);
perf_event_update_userpage(event);
}
}
/* we don't have to worry about interrupts here */
prev = local64_read(&event->hw.prev_count);
- delta = (val - prev) & 0xfffffffful;
+ delta = check_and_compute_delta(prev, val);
local64_add(delta, &event->count);
/*
u64 stolen = 0;
u64 dtb;
+ if (!dtl)
+ return 0;
+
if (i == vpa->dtl_idx)
return 0;
while (i < vpa->dtl_idx) {
mpic_setup_this_cpu();
}
+#ifdef CONFIG_PPC64
#ifdef CONFIG_HOTPLUG_CPU
static int smp_core99_cpu_notify(struct notifier_block *self,
unsigned long action, void *hcpu)
static void __init smp_core99_bringup_done(void)
{
-#ifdef CONFIG_PPC64
extern void g5_phy_disable_cpu1(void);
/* Close i2c bus if it was used for tb sync */
set_cpu_present(1, false);
g5_phy_disable_cpu1();
}
-#endif /* CONFIG_PPC64 */
-
#ifdef CONFIG_HOTPLUG_CPU
register_cpu_notifier(&smp_core99_cpu_nb);
#endif
+
if (ppc_md.progress)
ppc_md.progress("smp_core99_bringup_done", 0x349);
}
+#endif /* CONFIG_PPC64 */
#ifdef CONFIG_HOTPLUG_CPU
struct smp_ops_t core99_smp_ops = {
.message_pass = smp_mpic_message_pass,
.probe = smp_core99_probe,
+#ifdef CONFIG_PPC64
.bringup_done = smp_core99_bringup_done,
+#endif
.kick_cpu = smp_core99_kick_cpu,
.setup_cpu = smp_core99_setup_cpu,
.give_timebase = smp_core99_give_timebase,
int cpu, ret;
struct paca_struct *pp;
struct dtl_entry *dtl;
+ struct kmem_cache *dtl_cache;
if (!firmware_has_feature(FW_FEATURE_SPLPAR))
return 0;
+ dtl_cache = kmem_cache_create("dtl", DISPATCH_LOG_BYTES,
+ DISPATCH_LOG_BYTES, 0, NULL);
+ if (!dtl_cache) {
+ pr_warn("Failed to create dispatch trace log buffer cache\n");
+ pr_warn("Stolen time statistics will be unreliable\n");
+ return 0;
+ }
+
for_each_possible_cpu(cpu) {
pp = &paca[cpu];
- dtl = kmalloc_node(DISPATCH_LOG_BYTES, GFP_KERNEL,
- cpu_to_node(cpu));
+ dtl = kmem_cache_alloc(dtl_cache, GFP_KERNEL);
if (!dtl) {
pr_warn("Failed to allocate dispatch trace log for cpu %d\n",
cpu);
struct resource rsrc;
const int *bus_range;
+ if (!of_device_is_available(dev)) {
+ pr_warning("%s: disabled\n", dev->full_name);
+ return -ENODEV;
+ }
+
pr_debug("Adding PCI host bridge %s\n", dev->full_name);
/* Fetch host bridge registers address */
port->ops = ops;
port->priv = priv;
port->phys_efptr = 0x100;
- rio_register_mport(port);
priv->regs_win = ioremap(regs.start, regs.end - regs.start + 1);
rio_regs_win = priv->regs_win;
dev_info(&dev->dev, "RapidIO Common Transport System size: %d\n",
port->sys_size ? 65536 : 256);
+ if (rio_register_mport(port))
+ goto err;
+
if (port->host_deviceid >= 0)
out_be32(priv->regs_win + RIO_GCCSR, RIO_PORT_GEN_HOST |
RIO_PORT_GEN_MASTER | RIO_PORT_GEN_DISCOVERED);
menu "Host processor type and features"
+config CMPXCHG_LOCAL
+ bool
+ default n
+
source "arch/x86/Kconfig.cpu"
endmenu
--- /dev/null
+#ifndef __UM_BUG_H
+#define __UM_BUG_H
+
+#include <asm-generic/bug.h>
+
+#endif
* Don't enable translation but enable GART IO and CPU accesses.
* Also, set DISTLBWALKPRB since GART tables memory is UC.
*/
- ctl = DISTLBWALKPRB | order << 1;
+ ctl = order << 1;
pci_write_config_dword(dev, AMD64_GARTAPERTURECTL, ctl);
}
{
u32 tmp, ctl;
- /* address of the mappings table */
- addr >>= 12;
- tmp = (u32) addr<<4;
- tmp &= ~0xf;
- pci_write_config_dword(dev, AMD64_GARTTABLEBASE, tmp);
-
- /* Enable GART translation for this hammer. */
- pci_read_config_dword(dev, AMD64_GARTAPERTURECTL, &ctl);
- ctl |= GARTEN;
- ctl &= ~(DISGARTCPU | DISGARTIO);
- pci_write_config_dword(dev, AMD64_GARTAPERTURECTL, ctl);
+ /* address of the mappings table */
+ addr >>= 12;
+ tmp = (u32) addr<<4;
+ tmp &= ~0xf;
+ pci_write_config_dword(dev, AMD64_GARTTABLEBASE, tmp);
+
+ /* Enable GART translation for this hammer. */
+ pci_read_config_dword(dev, AMD64_GARTAPERTURECTL, &ctl);
+ ctl |= GARTEN | DISTLBWALKPRB;
+ ctl &= ~(DISGARTCPU | DISGARTIO);
+ pci_write_config_dword(dev, AMD64_GARTAPERTURECTL, ctl);
}
static inline int aperture_valid(u64 aper_base, u32 aper_size, u32 min_size)
#define MSR_IA32_MC0_ADDR 0x00000402
#define MSR_IA32_MC0_MISC 0x00000403
+#define MSR_AMD64_MC0_MASK 0xc0010044
+
#define MSR_IA32_MCx_CTL(x) (MSR_IA32_MC0_CTL + 4*(x))
#define MSR_IA32_MCx_STATUS(x) (MSR_IA32_MC0_STATUS + 4*(x))
#define MSR_IA32_MCx_ADDR(x) (MSR_IA32_MC0_ADDR + 4*(x))
#define MSR_IA32_MCx_MISC(x) (MSR_IA32_MC0_MISC + 4*(x))
+#define MSR_AMD64_MCx_MASK(x) (MSR_AMD64_MC0_MASK + (x))
+
/* These are consecutive and not in the normal 4er MCE bank block */
#define MSR_IA32_MC0_CTL2 0x00000280
#define MSR_IA32_MCx_CTL2(x) (MSR_IA32_MC0_CTL2 + (x))
* Don't enable translation yet but enable GART IO and CPU
* accesses and set DISTLBWALKPRB since GART table memory is UC.
*/
- u32 ctl = DISTLBWALKPRB | aper_order << 1;
+ u32 ctl = aper_order << 1;
bus = amd_nb_bus_dev_ranges[i].bus;
dev_base = amd_nb_bus_dev_ranges[i].dev_base;
/* As a rule processors have APIC timer running in deep C states */
if (c->x86 >= 0xf && !cpu_has_amd_erratum(amd_erratum_400))
set_cpu_cap(c, X86_FEATURE_ARAT);
+
+ /*
+ * Disable GART TLB Walk Errors on Fam10h. We do this here
+ * because this is always needed when GART is enabled, even in a
+ * kernel which has no MCE support built in.
+ */
+ if (c->x86 == 0x10) {
+ /*
+ * BIOS should disable GartTlbWlk Errors themself. If
+ * it doesn't do it here as suggested by the BKDG.
+ *
+ * Fixes: https://bugzilla.kernel.org/show_bug.cgi?id=33012
+ */
+ u64 mask;
+
+ rdmsrl(MSR_AMD64_MCx_MASK(4), mask);
+ mask |= (1 << 10);
+ wrmsrl(MSR_AMD64_MCx_MASK(4), mask);
+ }
}
#ifdef CONFIG_X86_32
[ C(L1D) ] = {
[ C(OP_READ) ] = {
[ C(RESULT_ACCESS) ] = 0x0040, /* Data Cache Accesses */
- [ C(RESULT_MISS) ] = 0x0041, /* Data Cache Misses */
+ [ C(RESULT_MISS) ] = 0x0141, /* Data Cache Misses */
},
[ C(OP_WRITE) ] = {
[ C(RESULT_ACCESS) ] = 0x0142, /* Data Cache Refills :system */
*
* Exceptions:
*
+ * 0x000 FP PERF_CTL[3], PERF_CTL[5:3] (*)
* 0x003 FP PERF_CTL[3]
+ * 0x004 FP PERF_CTL[3], PERF_CTL[5:3] (*)
* 0x00B FP PERF_CTL[3]
* 0x00D FP PERF_CTL[3]
* 0x023 DE PERF_CTL[2:0]
* 0x0DF LS PERF_CTL[5:0]
* 0x1D6 EX PERF_CTL[5:0]
* 0x1D8 EX PERF_CTL[5:0]
+ *
+ * (*) depending on the umask all FPU counters may be used
*/
static struct event_constraint amd_f15_PMC0 = EVENT_CONSTRAINT(0, 0x01, 0);
static struct event_constraint *
amd_get_event_constraints_f15h(struct cpu_hw_events *cpuc, struct perf_event *event)
{
- unsigned int event_code = amd_get_event_code(&event->hw);
+ struct hw_perf_event *hwc = &event->hw;
+ unsigned int event_code = amd_get_event_code(hwc);
switch (event_code & AMD_EVENT_TYPE_MASK) {
case AMD_EVENT_FP:
switch (event_code) {
+ case 0x000:
+ if (!(hwc->config & 0x0000F000ULL))
+ break;
+ if (!(hwc->config & 0x00000F00ULL))
+ break;
+ return &amd_f15_PMC3;
+ case 0x004:
+ if (hweight_long(hwc->config & ARCH_PERFMON_EVENTSEL_UMASK) <= 1)
+ break;
+ return &amd_f15_PMC3;
case 0x003:
case 0x00B:
case 0x00D:
return &amd_f15_PMC3;
- default:
- return &amd_f15_PMC53;
}
+ return &amd_f15_PMC53;
case AMD_EVENT_LS:
case AMD_EVENT_DC:
case AMD_EVENT_EX_LS:
#define AGPEXTERN
#endif
+/* GART can only remap to physical addresses < 1TB */
+#define GART_MAX_PHYS_ADDR (1ULL << 40)
+
/* backdoor interface to AGP driver */
AGPEXTERN int agp_memory_reserved;
AGPEXTERN __u32 *agp_gatt_table;
size_t size, int dir, unsigned long align_mask)
{
unsigned long npages = iommu_num_pages(phys_mem, size, PAGE_SIZE);
- unsigned long iommu_page = alloc_iommu(dev, npages, align_mask);
+ unsigned long iommu_page;
int i;
+ if (unlikely(phys_mem + size > GART_MAX_PHYS_ADDR))
+ return bad_dma_addr;
+
+ iommu_page = alloc_iommu(dev, npages, align_mask);
if (iommu_page == -1) {
if (!nonforced_iommu(dev, phys_mem, size))
return phys_mem;
identify_secondary_cpu(c);
}
+static void __cpuinit check_cpu_siblings_on_same_node(int cpu1, int cpu2)
+{
+ int node1 = early_cpu_to_node(cpu1);
+ int node2 = early_cpu_to_node(cpu2);
+
+ /*
+ * Our CPU scheduler assumes all logical cpus in the same physical cpu
+ * share the same node. But, buggy ACPI or NUMA emulation might assign
+ * them to different node. Fix it.
+ */
+ if (node1 != node2) {
+ pr_warning("CPU %d in node %d and CPU %d in node %d are in the same physical CPU. forcing same node %d\n",
+ cpu1, node1, cpu2, node2, node2);
+
+ numa_remove_cpu(cpu1);
+ numa_set_node(cpu1, node2);
+ numa_add_cpu(cpu1);
+ }
+}
+
static void __cpuinit link_thread_siblings(int cpu1, int cpu2)
{
cpumask_set_cpu(cpu1, cpu_sibling_mask(cpu2));
cpumask_set_cpu(cpu2, cpu_core_mask(cpu1));
cpumask_set_cpu(cpu1, cpu_llc_shared_mask(cpu2));
cpumask_set_cpu(cpu2, cpu_llc_shared_mask(cpu1));
+ check_cpu_siblings_on_same_node(cpu1, cpu2);
}
per_cpu(cpu_llc_id, cpu) == per_cpu(cpu_llc_id, i)) {
cpumask_set_cpu(i, cpu_llc_shared_mask(cpu));
cpumask_set_cpu(cpu, cpu_llc_shared_mask(i));
+ check_cpu_siblings_on_same_node(cpu, i);
}
if (c->phys_proc_id == cpu_data(i).phys_proc_id) {
cpumask_set_cpu(i, cpu_core_mask(cpu));
cpumask_set_cpu(cpu, cpu_core_mask(i));
+ check_cpu_siblings_on_same_node(cpu, i);
/*
* Does this new cpu bringup a new core?
*/
compatible = "intel,ce4100-pci", "pci";
device_type = "pci";
bus-range = <1 1>;
+ reg = <0x0800 0x0 0x0 0x0 0x0>;
ranges = <0x2000000 0 0xdffe0000 0x2000000 0 0xdffe0000 0 0x1000>;
interrupt-parent = <&ioapic2>;
#address-cells = <2>;
#size-cells = <1>;
compatible = "isa";
+ reg = <0xf800 0x0 0x0 0x0 0x0>;
ranges = <1 0 0 0 0 0x100>;
rtc@70 {
pentry->freq_hz, pentry->irq);
if (!pentry->irq)
continue;
- mp_irq.type = MP_IOAPIC;
+ mp_irq.type = MP_INTSRC;
mp_irq.irqtype = mp_INT;
/* triggering mode edge bit 2-3, active high polarity bit 0-1 */
mp_irq.irqflag = 5;
- mp_irq.srcbus = 0;
+ mp_irq.srcbus = MP_BUS_ISA;
mp_irq.srcbusirq = pentry->irq; /* IRQ */
mp_irq.dstapic = MP_APIC_ALL;
mp_irq.dstirq = pentry->irq;
for (totallen = 0; totallen < sfi_mrtc_num; totallen++, pentry++) {
pr_debug("RTC[%d]: paddr = 0x%08x, irq = %d\n",
totallen, (u32)pentry->phys_addr, pentry->irq);
- mp_irq.type = MP_IOAPIC;
+ mp_irq.type = MP_INTSRC;
mp_irq.irqtype = mp_INT;
mp_irq.irqflag = 0xf; /* level trigger and active low */
- mp_irq.srcbus = 0;
+ mp_irq.srcbus = MP_BUS_ISA;
mp_irq.srcbusirq = pentry->irq; /* IRQ */
mp_irq.dstapic = MP_APIC_ALL;
mp_irq.dstirq = pentry->irq;
/* Avoid searching for BIOS MP tables */
x86_init.mpparse.find_smp_config = x86_init_noop;
x86_init.mpparse.get_smp_config = x86_init_uint_noop;
-
+ set_bit(MP_BUS_ISA, mp_bus_not_pci);
}
/*
config XEN_SAVE_RESTORE
bool
depends on XEN
+ select HIBERNATE_CALLBACKS
default y
config XEN_DEBUG_FS
static __init void xen_init_cpuid_mask(void)
{
unsigned int ax, bx, cx, dx;
+ unsigned int xsave_mask;
cpuid_leaf1_edx_mask =
~((1 << X86_FEATURE_MCE) | /* disable MCE */
cpuid_leaf1_edx_mask &=
~((1 << X86_FEATURE_APIC) | /* disable local APIC */
(1 << X86_FEATURE_ACPI)); /* disable ACPI */
-
ax = 1;
- cx = 0;
xen_cpuid(&ax, &bx, &cx, &dx);
- /* cpuid claims we support xsave; try enabling it to see what happens */
- if (cx & (1 << (X86_FEATURE_XSAVE % 32))) {
- unsigned long cr4;
-
- set_in_cr4(X86_CR4_OSXSAVE);
-
- cr4 = read_cr4();
+ xsave_mask =
+ (1 << (X86_FEATURE_XSAVE % 32)) |
+ (1 << (X86_FEATURE_OSXSAVE % 32));
- if ((cr4 & X86_CR4_OSXSAVE) == 0)
- cpuid_leaf1_ecx_mask &= ~(1 << (X86_FEATURE_XSAVE % 32));
-
- clear_in_cr4(X86_CR4_OSXSAVE);
- }
+ /* Xen will set CR4.OSXSAVE if supported and not disabled by force */
+ if ((cx & xsave_mask) != xsave_mask)
+ cpuid_leaf1_ecx_mask &= ~xsave_mask; /* disable XSAVE & OSXSAVE */
}
static void xen_set_debugreg(int reg, unsigned long val)
if (io_page &&
(xen_initial_domain() || addr >= ISA_END_ADDRESS)) {
other_addr = pfn_to_mfn(addr >> PAGE_SHIFT) << PAGE_SHIFT;
- WARN(addr != other_addr,
+ WARN_ONCE(addr != other_addr,
"0x%lx is using VM_IO, but it is 0x%lx!\n",
(unsigned long)addr, (unsigned long)other_addr);
} else {
pteval_t iomap_set = (_pte.pte & PTE_FLAGS_MASK) & _PAGE_IOMAP;
other_addr = (_pte.pte & PTE_PFN_MASK);
- WARN((addr == other_addr) && (!io_page) && (!iomap_set),
+ WARN_ONCE((addr == other_addr) && (!io_page) && (!iomap_set),
"0x%lx is missing VM_IO (and wasn't fixed)!\n",
(unsigned long)addr);
}
#endif
}
+#ifdef CONFIG_X86_32
static __init pte_t mask_rw_pte(pte_t *ptep, pte_t pte)
{
- unsigned long pfn = pte_pfn(pte);
-
-#ifdef CONFIG_X86_32
/* If there's an existing pte, then don't allow _PAGE_RW to be set */
if (pte_val_ma(*ptep) & _PAGE_PRESENT)
pte = __pte_ma(((pte_val_ma(*ptep) & _PAGE_RW) | ~_PAGE_RW) &
pte_val_ma(pte));
-#endif
+
+ return pte;
+}
+#else /* CONFIG_X86_64 */
+static __init pte_t mask_rw_pte(pte_t *ptep, pte_t pte)
+{
+ unsigned long pfn = pte_pfn(pte);
/*
* If the new pfn is within the range of the newly allocated
return pte;
}
+#endif /* CONFIG_X86_64 */
/* Init-time set_pte while constructing initial pagetables, which
doesn't allow RO pagetable pages to be remapped RW */
memcpy(map_raw, map, sizeof(map));
e820.nr_map = 0;
- xen_extra_mem_start = mem_end;
+ xen_extra_mem_start = max((1ULL << 32), mem_end);
for (i = 0; i < memmap.nr_entries; i++) {
unsigned long long end;
}
EXPORT_SYMBOL(blk_dump_rq_flags);
-/*
- * Make sure that plugs that were pending when this function was entered,
- * are now complete and requests pushed to the queue.
-*/
-static inline void queue_sync_plugs(struct request_queue *q)
-{
- /*
- * If the current process is plugged and has barriers submitted,
- * we will livelock if we don't unplug first.
- */
- blk_flush_plug(current);
-}
-
static void blk_delay_work(struct work_struct *work)
{
struct request_queue *q;
q = container_of(work, struct request_queue, delay_work.work);
spin_lock_irq(q->queue_lock);
- __blk_run_queue(q, false);
+ __blk_run_queue(q);
spin_unlock_irq(q->queue_lock);
}
*/
void blk_delay_queue(struct request_queue *q, unsigned long msecs)
{
- schedule_delayed_work(&q->delay_work, msecs_to_jiffies(msecs));
+ queue_delayed_work(kblockd_workqueue, &q->delay_work,
+ msecs_to_jiffies(msecs));
}
EXPORT_SYMBOL(blk_delay_queue);
WARN_ON(!irqs_disabled());
queue_flag_clear(QUEUE_FLAG_STOPPED, q);
- __blk_run_queue(q, false);
+ __blk_run_queue(q);
}
EXPORT_SYMBOL(blk_start_queue);
{
del_timer_sync(&q->timeout);
cancel_delayed_work_sync(&q->delay_work);
- queue_sync_plugs(q);
}
EXPORT_SYMBOL(blk_sync_queue);
/**
* __blk_run_queue - run a single device queue
* @q: The queue to run
- * @force_kblockd: Don't run @q->request_fn directly. Use kblockd.
*
* Description:
* See @blk_run_queue. This variant must be called with the queue lock
* held and interrupts disabled.
- *
*/
-void __blk_run_queue(struct request_queue *q, bool force_kblockd)
+void __blk_run_queue(struct request_queue *q)
{
if (unlikely(blk_queue_stopped(q)))
return;
- /*
- * Only recurse once to avoid overrunning the stack, let the unplug
- * handling reinvoke the handler shortly if we already got there.
- */
- if (!force_kblockd && !queue_flag_test_and_set(QUEUE_FLAG_REENTER, q)) {
- q->request_fn(q);
- queue_flag_clear(QUEUE_FLAG_REENTER, q);
- } else
- queue_delayed_work(kblockd_workqueue, &q->delay_work, 0);
+ q->request_fn(q);
}
EXPORT_SYMBOL(__blk_run_queue);
+/**
+ * blk_run_queue_async - run a single device queue in workqueue context
+ * @q: The queue to run
+ *
+ * Description:
+ * Tells kblockd to perform the equivalent of @blk_run_queue on behalf
+ * of us.
+ */
+void blk_run_queue_async(struct request_queue *q)
+{
+ if (likely(!blk_queue_stopped(q)))
+ queue_delayed_work(kblockd_workqueue, &q->delay_work, 0);
+}
+EXPORT_SYMBOL(blk_run_queue_async);
+
/**
* blk_run_queue - run a single device queue
* @q: The queue to run
unsigned long flags;
spin_lock_irqsave(q->queue_lock, flags);
- __blk_run_queue(q, false);
+ __blk_run_queue(q);
spin_unlock_irqrestore(q->queue_lock, flags);
}
EXPORT_SYMBOL(blk_run_queue);
blk_queue_end_tag(q, rq);
add_acct_request(q, rq, where);
- __blk_run_queue(q, false);
+ __blk_run_queue(q);
spin_unlock_irqrestore(q->queue_lock, flags);
}
EXPORT_SYMBOL(blk_insert_request);
plug = current->plug;
if (plug) {
- if (!plug->should_sort && !list_empty(&plug->list)) {
+ /*
+ * If this is the first request added after a plug, fire
+ * of a plug trace. If others have been added before, check
+ * if we have multiple devices in this plug. If so, make a
+ * note to sort the list before dispatch.
+ */
+ if (list_empty(&plug->list))
+ trace_block_plug(q);
+ else if (!plug->should_sort) {
struct request *__rq;
__rq = list_entry_rq(plug->list.prev);
} else {
spin_lock_irq(q->queue_lock);
add_acct_request(q, req, where);
- __blk_run_queue(q, false);
+ __blk_run_queue(q);
out_unlock:
spin_unlock_irq(q->queue_lock);
}
plug->magic = PLUG_MAGIC;
INIT_LIST_HEAD(&plug->list);
+ INIT_LIST_HEAD(&plug->cb_list);
plug->should_sort = 0;
/*
return !(rqa->q <= rqb->q);
}
-static void flush_plug_list(struct blk_plug *plug)
+/*
+ * If 'from_schedule' is true, then postpone the dispatch of requests
+ * until a safe kblockd context. We due this to avoid accidental big
+ * additional stack usage in driver dispatch, in places where the originally
+ * plugger did not intend it.
+ */
+static void queue_unplugged(struct request_queue *q, unsigned int depth,
+ bool from_schedule)
+ __releases(q->queue_lock)
+{
+ trace_block_unplug(q, depth, !from_schedule);
+
+ /*
+ * If we are punting this to kblockd, then we can safely drop
+ * the queue_lock before waking kblockd (which needs to take
+ * this lock).
+ */
+ if (from_schedule) {
+ spin_unlock(q->queue_lock);
+ blk_run_queue_async(q);
+ } else {
+ __blk_run_queue(q);
+ spin_unlock(q->queue_lock);
+ }
+
+}
+
+static void flush_plug_callbacks(struct blk_plug *plug)
+{
+ LIST_HEAD(callbacks);
+
+ if (list_empty(&plug->cb_list))
+ return;
+
+ list_splice_init(&plug->cb_list, &callbacks);
+
+ while (!list_empty(&callbacks)) {
+ struct blk_plug_cb *cb = list_first_entry(&callbacks,
+ struct blk_plug_cb,
+ list);
+ list_del(&cb->list);
+ cb->callback(cb);
+ }
+}
+
+void blk_flush_plug_list(struct blk_plug *plug, bool from_schedule)
{
struct request_queue *q;
unsigned long flags;
struct request *rq;
+ LIST_HEAD(list);
+ unsigned int depth;
BUG_ON(plug->magic != PLUG_MAGIC);
+ flush_plug_callbacks(plug);
if (list_empty(&plug->list))
return;
- if (plug->should_sort)
- list_sort(NULL, &plug->list, plug_rq_cmp);
+ list_splice_init(&plug->list, &list);
+
+ if (plug->should_sort) {
+ list_sort(NULL, &list, plug_rq_cmp);
+ plug->should_sort = 0;
+ }
q = NULL;
+ depth = 0;
+
+ /*
+ * Save and disable interrupts here, to avoid doing it for every
+ * queue lock we have to take.
+ */
local_irq_save(flags);
- while (!list_empty(&plug->list)) {
- rq = list_entry_rq(plug->list.next);
+ while (!list_empty(&list)) {
+ rq = list_entry_rq(list.next);
list_del_init(&rq->queuelist);
BUG_ON(!(rq->cmd_flags & REQ_ON_PLUG));
BUG_ON(!rq->q);
if (rq->q != q) {
- if (q) {
- __blk_run_queue(q, false);
- spin_unlock(q->queue_lock);
- }
+ /*
+ * This drops the queue lock
+ */
+ if (q)
+ queue_unplugged(q, depth, from_schedule);
q = rq->q;
+ depth = 0;
spin_lock(q->queue_lock);
}
rq->cmd_flags &= ~REQ_ON_PLUG;
__elv_add_request(q, rq, ELEVATOR_INSERT_FLUSH);
else
__elv_add_request(q, rq, ELEVATOR_INSERT_SORT_MERGE);
- }
- if (q) {
- __blk_run_queue(q, false);
- spin_unlock(q->queue_lock);
+ depth++;
}
- BUG_ON(!list_empty(&plug->list));
- local_irq_restore(flags);
-}
-
-static void __blk_finish_plug(struct task_struct *tsk, struct blk_plug *plug)
-{
- flush_plug_list(plug);
+ /*
+ * This drops the queue lock
+ */
+ if (q)
+ queue_unplugged(q, depth, from_schedule);
- if (plug == tsk->plug)
- tsk->plug = NULL;
+ local_irq_restore(flags);
}
void blk_finish_plug(struct blk_plug *plug)
{
- if (plug)
- __blk_finish_plug(current, plug);
-}
-EXPORT_SYMBOL(blk_finish_plug);
+ blk_flush_plug_list(plug, false);
-void __blk_flush_plug(struct task_struct *tsk, struct blk_plug *plug)
-{
- __blk_finish_plug(tsk, plug);
- tsk->plug = plug;
+ if (plug == current->plug)
+ current->plug = NULL;
}
-EXPORT_SYMBOL(__blk_flush_plug);
+EXPORT_SYMBOL(blk_finish_plug);
int __init blk_dev_init(void)
{
WARN_ON(irqs_disabled());
spin_lock_irq(q->queue_lock);
__elv_add_request(q, rq, where);
- __blk_run_queue(q, false);
+ __blk_run_queue(q);
/* the queue is stopped so it won't be plugged+unplugged */
if (rq->cmd_type == REQ_TYPE_PM_RESUME)
q->request_fn(q);
* request_fn may confuse the driver. Always use kblockd.
*/
if (queued)
- __blk_run_queue(q, true);
+ blk_run_queue_async(q);
}
/**
* the comment in flush_end_io().
*/
if (blk_flush_complete_seq(rq, REQ_FSEQ_DATA, error))
- __blk_run_queue(q, true);
+ blk_run_queue_async(q);
}
/**
if (rl->count[BLK_RW_SYNC] >= q->nr_requests) {
blk_set_queue_full(q, BLK_RW_SYNC);
- } else if (rl->count[BLK_RW_SYNC]+1 <= q->nr_requests) {
+ } else {
blk_clear_queue_full(q, BLK_RW_SYNC);
wake_up(&rl->wait[BLK_RW_SYNC]);
}
if (rl->count[BLK_RW_ASYNC] >= q->nr_requests) {
blk_set_queue_full(q, BLK_RW_ASYNC);
- } else if (rl->count[BLK_RW_ASYNC]+1 <= q->nr_requests) {
+ } else {
blk_clear_queue_full(q, BLK_RW_ASYNC);
wake_up(&rl->wait[BLK_RW_ASYNC]);
}
{
int ret;
struct device *dev = disk_to_dev(disk);
-
struct request_queue *q = disk->queue;
if (WARN_ON(!q))
return ret;
ret = kobject_add(&q->kobj, kobject_get(&dev->kobj), "%s", "queue");
- if (ret < 0)
+ if (ret < 0) {
+ blk_trace_remove_sysfs(dev);
return ret;
+ }
kobject_uevent(&q->kobj, KOBJ_ADD);
if (ret) {
kobject_uevent(&q->kobj, KOBJ_REMOVE);
kobject_del(&q->kobj);
- blk_trace_remove_sysfs(disk_to_dev(disk));
+ blk_trace_remove_sysfs(dev);
kobject_put(&dev->kobj);
return ret;
}
}
/*
- * Must always be called with the rcu_read_lock() held
+ * Call func for each cic attached to this ioc.
*/
static void
-__call_for_each_cic(struct io_context *ioc,
- void (*func)(struct io_context *, struct cfq_io_context *))
+call_for_each_cic(struct io_context *ioc,
+ void (*func)(struct io_context *, struct cfq_io_context *))
{
struct cfq_io_context *cic;
struct hlist_node *n;
+ rcu_read_lock();
+
hlist_for_each_entry_rcu(cic, n, &ioc->cic_list, cic_list)
func(ioc, cic);
-}
-/*
- * Call func for each cic attached to this ioc.
- */
-static void
-call_for_each_cic(struct io_context *ioc,
- void (*func)(struct io_context *, struct cfq_io_context *))
-{
- rcu_read_lock();
- __call_for_each_cic(ioc, func);
rcu_read_unlock();
}
* should be ok to iterate over the known list, we will see all cic's
* since no new ones are added.
*/
- __call_for_each_cic(ioc, cic_free_func);
+ call_for_each_cic(ioc, cic_free_func);
}
static void cfq_put_cooperator(struct cfq_queue *cfqq)
cfqd->busy_queues > 1) {
cfq_del_timer(cfqd, cfqq);
cfq_clear_cfqq_wait_request(cfqq);
- __blk_run_queue(cfqd->queue, false);
+ __blk_run_queue(cfqd->queue);
} else {
cfq_blkiocg_update_idle_time_stats(
&cfqq->cfqg->blkg);
* this new queue is RT and the current one is BE
*/
cfq_preempt_queue(cfqd, cfqq);
- __blk_run_queue(cfqd->queue, false);
+ __blk_run_queue(cfqd->queue);
}
}
struct request_queue *q = cfqd->queue;
spin_lock_irq(q->queue_lock);
- __blk_run_queue(cfqd->queue, false);
+ __blk_run_queue(cfqd->queue);
spin_unlock_irq(q->queue_lock);
}
*/
elv_drain_elevator(q);
while (q->rq.elvpriv) {
- __blk_run_queue(q, false);
+ __blk_run_queue(q);
spin_unlock_irq(q->queue_lock);
msleep(10);
spin_lock_irq(q->queue_lock);
* with anything. There's no point in delaying queue
* processing.
*/
- __blk_run_queue(q, false);
+ __blk_run_queue(q);
break;
case ELEVATOR_INSERT_SORT_MERGE:
#endif /* !CONFIG_SUSPEND */
-#ifdef CONFIG_HIBERNATION
+#ifdef CONFIG_HIBERNATE_CALLBACKS
static int amba_pm_freeze(struct device *dev)
{
return ret;
}
-#else /* !CONFIG_HIBERNATION */
+#else /* !CONFIG_HIBERNATE_CALLBACKS */
#define amba_pm_freeze NULL
#define amba_pm_thaw NULL
#define amba_pm_poweroff_noirq NULL
#define amba_pm_restore_noirq NULL
-#endif /* !CONFIG_HIBERNATION */
+#endif /* !CONFIG_HIBERNATE_CALLBACKS */
#ifdef CONFIG_PM
of_device_node_put(&pa->pdev.dev);
kfree(pa->pdev.dev.platform_data);
+ kfree(pa->pdev.mfd_cell);
kfree(pa->pdev.resource);
kfree(pa);
}
#endif /* !CONFIG_SUSPEND */
-#ifdef CONFIG_HIBERNATION
+#ifdef CONFIG_HIBERNATE_CALLBACKS
static int platform_pm_freeze(struct device *dev)
{
return ret;
}
-#else /* !CONFIG_HIBERNATION */
+#else /* !CONFIG_HIBERNATE_CALLBACKS */
#define platform_pm_freeze NULL
#define platform_pm_thaw NULL
#define platform_pm_poweroff_noirq NULL
#define platform_pm_restore_noirq NULL
-#endif /* !CONFIG_HIBERNATION */
+#endif /* !CONFIG_HIBERNATE_CALLBACKS */
#ifdef CONFIG_PM_RUNTIME
}
break;
#endif /* CONFIG_SUSPEND */
-#ifdef CONFIG_HIBERNATION
+#ifdef CONFIG_HIBERNATE_CALLBACKS
case PM_EVENT_FREEZE:
case PM_EVENT_QUIESCE:
if (ops->freeze) {
suspend_report_result(ops->restore, error);
}
break;
-#endif /* CONFIG_HIBERNATION */
+#endif /* CONFIG_HIBERNATE_CALLBACKS */
default:
error = -EINVAL;
}
}
break;
#endif /* CONFIG_SUSPEND */
-#ifdef CONFIG_HIBERNATION
+#ifdef CONFIG_HIBERNATE_CALLBACKS
case PM_EVENT_FREEZE:
case PM_EVENT_QUIESCE:
if (ops->freeze_noirq) {
suspend_report_result(ops->restore_noirq, error);
}
break;
-#endif /* CONFIG_HIBERNATION */
+#endif /* CONFIG_HIBERNATE_CALLBACKS */
default:
error = -EINVAL;
}
cbq->callback(msg, nsp);
kfree_skb(skb);
cn_queue_release_callback(cbq);
+ err = 0;
}
return err;
{}
};
-static struct of_platform_driver fsldma_of_driver = {
+static struct platform_driver fsldma_of_driver = {
.driver = {
.name = "fsl-elo-dma",
.owner = THIS_MODULE,
reg_val |= (1 << nr);
else
reg_val &= ~(1 << nr);
+ iowrite32(reg_val, &chip->reg->regs[chip->ch].po);
mutex_unlock(&chip->lock);
ret = gpiochip_add(&chip->gpio_chip);
if (ret)
- goto out_failed;
+ goto out_failed_irq;
if (pdata->setup) {
ret = pdata->setup(client, chip->gpio_chip.base,
i2c_set_clientdata(client, chip);
return 0;
-out_failed:
+out_failed_irq:
pca953x_irq_teardown(chip);
+out_failed:
kfree(chip->dyn_pdata);
kfree(chip);
return ret;
reg_val |= (1 << nr);
else
reg_val &= ~(1 << nr);
+ iowrite32(reg_val, &chip->reg->po);
mutex_unlock(&chip->lock);
int entries, tlb_miss;
crtc = intel_get_crtc_for_plane(dev, plane);
- if (crtc->fb == NULL || !crtc->enabled)
+ if (crtc->fb == NULL || !crtc->enabled) {
+ *cursor_wm = cursor->guard_size;
+ *plane_wm = display->guard_size;
return false;
+ }
htotal = crtc->mode.htotal;
hdisplay = crtc->mode.hdisplay;
return ret;
}
-static void intel_crtc_reset(struct drm_crtc *crtc)
-{
- struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
-
- /* Reset flags back to the 'unknown' status so that they
- * will be correctly set on the initial modeset.
- */
- intel_crtc->dpms_mode = -1;
-}
-
-static struct drm_crtc_helper_funcs intel_helper_funcs = {
- .dpms = intel_crtc_dpms,
- .mode_fixup = intel_crtc_mode_fixup,
- .mode_set = intel_crtc_mode_set,
- .mode_set_base = intel_pipe_set_base,
- .mode_set_base_atomic = intel_pipe_set_base_atomic,
- .load_lut = intel_crtc_load_lut,
- .disable = intel_crtc_disable,
-};
-
-static const struct drm_crtc_funcs intel_crtc_funcs = {
- .reset = intel_crtc_reset,
- .cursor_set = intel_crtc_cursor_set,
- .cursor_move = intel_crtc_cursor_move,
- .gamma_set = intel_crtc_gamma_set,
- .set_config = drm_crtc_helper_set_config,
- .destroy = intel_crtc_destroy,
- .page_flip = intel_crtc_page_flip,
-};
-
static void intel_sanitize_modesetting(struct drm_device *dev,
int pipe, int plane)
{
intel_disable_pipe(dev_priv, pipe);
}
+static void intel_crtc_reset(struct drm_crtc *crtc)
+{
+ struct drm_device *dev = crtc->dev;
+ struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
+
+ /* Reset flags back to the 'unknown' status so that they
+ * will be correctly set on the initial modeset.
+ */
+ intel_crtc->dpms_mode = -1;
+
+ /* We need to fix up any BIOS configuration that conflicts with
+ * our expectations.
+ */
+ intel_sanitize_modesetting(dev, intel_crtc->pipe, intel_crtc->plane);
+}
+
+static struct drm_crtc_helper_funcs intel_helper_funcs = {
+ .dpms = intel_crtc_dpms,
+ .mode_fixup = intel_crtc_mode_fixup,
+ .mode_set = intel_crtc_mode_set,
+ .mode_set_base = intel_pipe_set_base,
+ .mode_set_base_atomic = intel_pipe_set_base_atomic,
+ .load_lut = intel_crtc_load_lut,
+ .disable = intel_crtc_disable,
+};
+
+static const struct drm_crtc_funcs intel_crtc_funcs = {
+ .reset = intel_crtc_reset,
+ .cursor_set = intel_crtc_cursor_set,
+ .cursor_move = intel_crtc_cursor_move,
+ .gamma_set = intel_crtc_gamma_set,
+ .set_config = drm_crtc_helper_set_config,
+ .destroy = intel_crtc_destroy,
+ .page_flip = intel_crtc_page_flip,
+};
+
static void intel_crtc_init(struct drm_device *dev, int pipe)
{
drm_i915_private_t *dev_priv = dev->dev_private;
setup_timer(&intel_crtc->idle_timer, intel_crtc_idle_timer,
(unsigned long)intel_crtc);
-
- intel_sanitize_modesetting(dev, intel_crtc->pipe, intel_crtc->plane);
}
int intel_get_pipe_from_crtc_id(struct drm_device *dev, void *data,
(video_levels->blank << TV_BLANK_LEVEL_SHIFT)));
{
int pipeconf_reg = PIPECONF(pipe);
- int dspcntr_reg = DSPCNTR(pipe);
+ int dspcntr_reg = DSPCNTR(intel_crtc->plane);
int pipeconf = I915_READ(pipeconf_reg);
int dspcntr = I915_READ(dspcntr_reg);
- int dspbase_reg = DSPADDR(pipe);
+ int dspbase_reg = DSPADDR(intel_crtc->plane);
int xpos = 0x0, ypos = 0x0;
unsigned int xsize, ysize;
/* Pipe must be off here */
if (type < 0)
return connector_status_disconnected;
+ intel_tv->type = type;
intel_tv_find_better_format(connector);
+
return connector_status_connected;
}
*
* More recent chipsets favour HDMI rather than integrated S-Video.
*/
- connector->polled =
- DRM_CONNECTOR_POLL_CONNECT | DRM_CONNECTOR_POLL_DISCONNECT;
+ connector->polled = DRM_CONNECTOR_POLL_CONNECT;
drm_connector_init(dev, connector, &intel_tv_connector_funcs,
DRM_MODE_CONNECTOR_SVIDEO);
* A single status register covers multiple attributes,
* so we keep them all together.
*/
- u8 status_bits;
u8 status[PB_NUM_STATUS_REG];
u8 currpage;
* Sanity check for the adapter hardware - check the reaction of
* the bus lines only if it seems to be idle.
*/
-static int test_bus(struct i2c_algo_bit_data *adap, char *name)
+static int test_bus(struct i2c_adapter *i2c_adap)
{
- int scl, sda;
+ struct i2c_algo_bit_data *adap = i2c_adap->algo_data;
+ const char *name = i2c_adap->name;
+ int scl, sda, ret;
+
+ if (adap->pre_xfer) {
+ ret = adap->pre_xfer(i2c_adap);
+ if (ret < 0)
+ return -ENODEV;
+ }
if (adap->getscl == NULL)
pr_info("%s: Testing SDA only, SCL is not readable\n", name);
"while pulling SCL high!\n", name);
goto bailout;
}
+
+ if (adap->post_xfer)
+ adap->post_xfer(i2c_adap);
+
pr_info("%s: Test OK\n", name);
return 0;
bailout:
sdahi(adap);
sclhi(adap);
+
+ if (adap->post_xfer)
+ adap->post_xfer(i2c_adap);
+
return -ENODEV;
}
int ret;
if (bit_test) {
- ret = test_bus(bit_adap, adap->name);
+ ret = test_bus(adap);
if (ret < 0)
return -ENODEV;
}
/* Let legacy drivers scan this bus for matching devices */
if (driver->attach_adapter) {
- dev_warn(&adap->dev, "attach_adapter method is deprecated\n");
+ dev_warn(&adap->dev, "%s: attach_adapter method is deprecated\n",
+ driver->driver.name);
dev_warn(&adap->dev, "Please use another way to instantiate "
"your i2c_client\n");
/* We ignore the return code; if it fails, too bad */
if (!driver->detach_adapter)
return 0;
- dev_warn(&adapter->dev, "detach_adapter method is deprecated\n");
+ dev_warn(&adapter->dev, "%s: detach_adapter method is deprecated\n",
+ driver->driver.name);
res = driver->detach_adapter(adapter);
if (res)
dev_err(&adapter->dev, "detach_adapter failed (%d) "
};
struct evdev_client {
- int head;
- int tail;
+ unsigned int head;
+ unsigned int tail;
spinlock_t buffer_lock; /* protects access to buffer, head and tail */
struct fasync_struct *fasync;
struct evdev *evdev;
struct list_head node;
- int bufsize;
+ unsigned int bufsize;
struct input_event buffer[];
};
static void evdev_pass_event(struct evdev_client *client,
struct input_event *event)
{
- /*
- * Interrupts are disabled, just acquire the lock.
- * Make sure we don't leave with the client buffer
- * "empty" by having client->head == client->tail.
- */
+ /* Interrupts are disabled, just acquire the lock. */
spin_lock(&client->buffer_lock);
- do {
- client->buffer[client->head++] = *event;
- client->head &= client->bufsize - 1;
- } while (client->head == client->tail);
+
+ client->buffer[client->head++] = *event;
+ client->head &= client->bufsize - 1;
+
+ if (unlikely(client->head == client->tail)) {
+ /*
+ * This effectively "drops" all unconsumed events, leaving
+ * EV_SYN/SYN_DROPPED plus the newest event in the queue.
+ */
+ client->tail = (client->head - 2) & (client->bufsize - 1);
+
+ client->buffer[client->tail].time = event->time;
+ client->buffer[client->tail].type = EV_SYN;
+ client->buffer[client->tail].code = SYN_DROPPED;
+ client->buffer[client->tail].value = 0;
+ }
+
spin_unlock(&client->buffer_lock);
if (event->type == EV_SYN)
}
EXPORT_SYMBOL(input_set_capability);
+static unsigned int input_estimate_events_per_packet(struct input_dev *dev)
+{
+ int mt_slots;
+ int i;
+ unsigned int events;
+
+ if (dev->mtsize) {
+ mt_slots = dev->mtsize;
+ } else if (test_bit(ABS_MT_TRACKING_ID, dev->absbit)) {
+ mt_slots = dev->absinfo[ABS_MT_TRACKING_ID].maximum -
+ dev->absinfo[ABS_MT_TRACKING_ID].minimum + 1,
+ clamp(mt_slots, 2, 32);
+ } else if (test_bit(ABS_MT_POSITION_X, dev->absbit)) {
+ mt_slots = 2;
+ } else {
+ mt_slots = 0;
+ }
+
+ events = mt_slots + 1; /* count SYN_MT_REPORT and SYN_REPORT */
+
+ for (i = 0; i < ABS_CNT; i++) {
+ if (test_bit(i, dev->absbit)) {
+ if (input_is_mt_axis(i))
+ events += mt_slots;
+ else
+ events++;
+ }
+ }
+
+ for (i = 0; i < REL_CNT; i++)
+ if (test_bit(i, dev->relbit))
+ events++;
+
+ return events;
+}
+
#define INPUT_CLEANSE_BITMASK(dev, type, bits) \
do { \
if (!test_bit(EV_##type, dev->evbit)) \
/* Make sure that bitmasks not mentioned in dev->evbit are clean. */
input_cleanse_bitmasks(dev);
+ if (!dev->hint_events_per_packet)
+ dev->hint_events_per_packet =
+ input_estimate_events_per_packet(dev);
+
/*
* If delay and period are pre-set by the driver, then autorepeating
* is handled by the driver itself and we don't do it in input.c.
static int __devinit twl4030_kp_probe(struct platform_device *pdev)
{
struct twl4030_keypad_data *pdata = pdev->dev.platform_data;
- const struct matrix_keymap_data *keymap_data = pdata->keymap_data;
+ const struct matrix_keymap_data *keymap_data;
struct twl4030_keypad *kp;
struct input_dev *input;
u8 reg;
int error;
- if (!pdata || !pdata->rows || !pdata->cols ||
+ if (!pdata || !pdata->rows || !pdata->cols || !pdata->keymap_data ||
pdata->rows > TWL4030_MAX_ROWS || pdata->cols > TWL4030_MAX_COLS) {
dev_err(&pdev->dev, "Invalid platform_data\n");
return -EINVAL;
}
+ keymap_data = pdata->keymap_data;
+
kp = kzalloc(sizeof(*kp), GFP_KERNEL);
input = input_allocate_device();
if (!kp || !input) {
enum xenbus_state backend_state)
{
struct xenkbd_info *info = dev_get_drvdata(&dev->dev);
- int val;
+ int ret, val;
switch (backend_state) {
case XenbusStateInitialising:
case XenbusStateInitWait:
InitWait:
+ ret = xenbus_scanf(XBT_NIL, info->xbdev->otherend,
+ "feature-abs-pointer", "%d", &val);
+ if (ret < 0)
+ val = 0;
+ if (val) {
+ ret = xenbus_printf(XBT_NIL, info->xbdev->nodename,
+ "request-abs-pointer", "1");
+ if (ret)
+ pr_warning("xenkbd: can't request abs-pointer");
+ }
+
xenbus_switch_state(dev, XenbusStateConnected);
break;
IRQF_SHARED | IRQF_DISABLED, "h3600_action", &ts->dev)) {
printk(KERN_ERR "h3600ts.c: Could not allocate Action Button IRQ!\n");
err = -EBUSY;
- goto fail2;
+ goto fail1;
}
if (request_irq(IRQ_GPIO_BITSY_NPOWER_BUTTON, npower_button_handler,
IRQF_SHARED | IRQF_DISABLED, "h3600_suspend", &ts->dev)) {
printk(KERN_ERR "h3600ts.c: Could not allocate Power Button IRQ!\n");
err = -EBUSY;
- goto fail3;
+ goto fail2;
}
serio_set_drvdata(serio, ts);
err = serio_open(serio, drv);
if (err)
- return err;
+ goto fail3;
//h3600_flite_control(1, 25); /* default brightness */
- input_register_device(ts->dev);
+ err = input_register_device(ts->dev);
+ if (err)
+ goto fail4;
return 0;
-fail3: free_irq(IRQ_GPIO_BITSY_NPOWER_BUTTON, ts->dev);
+fail4: serio_close(serio);
+fail3: serio_set_drvdata(serio, NULL);
+ free_irq(IRQ_GPIO_BITSY_NPOWER_BUTTON, ts->dev);
fail2: free_irq(IRQ_GPIO_BITSY_ACTION_BUTTON, ts->dev);
-fail1: serio_set_drvdata(serio, NULL);
- input_free_device(input_dev);
+fail1: input_free_device(input_dev);
kfree(ts);
return err;
}
led->cdev.flags |= LED_CORE_SUSPENDRESUME;
led->vcc = vcc;
+ /* to handle correctly an already enabled regulator */
+ if (regulator_is_enabled(led->vcc))
+ led->enabled = 1;
+
mutex_init(&led->mutex);
INIT_WORK(&led->work, led_work);
return md_raid5_congested(&rs->md, bits);
}
-static void raid_unplug(struct dm_target_callbacks *cb)
-{
- struct raid_set *rs = container_of(cb, struct raid_set, callbacks);
-
- md_raid5_kick_device(rs->md.private);
-}
-
/*
* Construct a RAID4/5/6 mapping:
* Args:
}
rs->callbacks.congested_fn = raid_is_congested;
- rs->callbacks.unplug_fn = raid_unplug;
dm_table_add_target_callbacks(ti->table, &rs->callbacks);
return 0;
/* Support for plugging.
* This mirrors the plugging support in request_queue, but does not
- * require having a whole queue
+ * require having a whole queue or request structures.
+ * We allocate an md_plug_cb for each md device and each thread it gets
+ * plugged on. This links tot the private plug_handle structure in the
+ * personality data where we keep a count of the number of outstanding
+ * plugs so other code can see if a plug is active.
*/
-static void plugger_work(struct work_struct *work)
-{
- struct plug_handle *plug =
- container_of(work, struct plug_handle, unplug_work);
- plug->unplug_fn(plug);
-}
-static void plugger_timeout(unsigned long data)
-{
- struct plug_handle *plug = (void *)data;
- kblockd_schedule_work(NULL, &plug->unplug_work);
-}
-void plugger_init(struct plug_handle *plug,
- void (*unplug_fn)(struct plug_handle *))
-{
- plug->unplug_flag = 0;
- plug->unplug_fn = unplug_fn;
- init_timer(&plug->unplug_timer);
- plug->unplug_timer.function = plugger_timeout;
- plug->unplug_timer.data = (unsigned long)plug;
- INIT_WORK(&plug->unplug_work, plugger_work);
-}
-EXPORT_SYMBOL_GPL(plugger_init);
+struct md_plug_cb {
+ struct blk_plug_cb cb;
+ mddev_t *mddev;
+};
-void plugger_set_plug(struct plug_handle *plug)
+static void plugger_unplug(struct blk_plug_cb *cb)
{
- if (!test_and_set_bit(PLUGGED_FLAG, &plug->unplug_flag))
- mod_timer(&plug->unplug_timer, jiffies + msecs_to_jiffies(3)+1);
+ struct md_plug_cb *mdcb = container_of(cb, struct md_plug_cb, cb);
+ if (atomic_dec_and_test(&mdcb->mddev->plug_cnt))
+ md_wakeup_thread(mdcb->mddev->thread);
+ kfree(mdcb);
}
-EXPORT_SYMBOL_GPL(plugger_set_plug);
-int plugger_remove_plug(struct plug_handle *plug)
+/* Check that an unplug wakeup will come shortly.
+ * If not, wakeup the md thread immediately
+ */
+int mddev_check_plugged(mddev_t *mddev)
{
- if (test_and_clear_bit(PLUGGED_FLAG, &plug->unplug_flag)) {
- del_timer(&plug->unplug_timer);
- return 1;
- } else
+ struct blk_plug *plug = current->plug;
+ struct md_plug_cb *mdcb;
+
+ if (!plug)
return 0;
-}
-EXPORT_SYMBOL_GPL(plugger_remove_plug);
+ list_for_each_entry(mdcb, &plug->cb_list, cb.list) {
+ if (mdcb->cb.callback == plugger_unplug &&
+ mdcb->mddev == mddev) {
+ /* Already on the list, move to top */
+ if (mdcb != list_first_entry(&plug->cb_list,
+ struct md_plug_cb,
+ cb.list))
+ list_move(&mdcb->cb.list, &plug->cb_list);
+ return 1;
+ }
+ }
+ /* Not currently on the callback list */
+ mdcb = kmalloc(sizeof(*mdcb), GFP_ATOMIC);
+ if (!mdcb)
+ return 0;
+
+ mdcb->mddev = mddev;
+ mdcb->cb.callback = plugger_unplug;
+ atomic_inc(&mddev->plug_cnt);
+ list_add(&mdcb->cb.list, &plug->cb_list);
+ return 1;
+}
+EXPORT_SYMBOL_GPL(mddev_check_plugged);
static inline mddev_t *mddev_get(mddev_t *mddev)
{
atomic_set(&mddev->active, 1);
atomic_set(&mddev->openers, 0);
atomic_set(&mddev->active_io, 0);
+ atomic_set(&mddev->plug_cnt, 0);
spin_lock_init(&mddev->write_lock);
atomic_set(&mddev->flush_pending, 0);
init_waitqueue_head(&mddev->sb_wait);
mddev->layout = mddev->new_layout;
mddev->chunk_sectors = mddev->new_chunk_sectors;
mddev->delta_disks = 0;
+ mddev->degraded = 0;
if (mddev->pers->sync_request == NULL) {
/* this is now an array without redundancy, so
* it must always be in_sync
mddev->bitmap_info.chunksize = 0;
mddev->bitmap_info.daemon_sleep = 0;
mddev->bitmap_info.max_write_behind = 0;
- mddev->plug = NULL;
}
static void __md_stop_writes(mddev_t *mddev)
}
EXPORT_SYMBOL_GPL(md_allow_write);
-void md_unplug(mddev_t *mddev)
-{
- if (mddev->plug)
- mddev->plug->unplug_fn(mddev->plug);
-}
-
#define SYNC_MARKS 10
#define SYNC_MARK_STEP (3*HZ)
void md_do_sync(mddev_t *mddev)
typedef struct mddev_s mddev_t;
typedef struct mdk_rdev_s mdk_rdev_t;
-/* generic plugging support - like that provided with request_queue,
- * but does not require a request_queue
- */
-struct plug_handle {
- void (*unplug_fn)(struct plug_handle *);
- struct timer_list unplug_timer;
- struct work_struct unplug_work;
- unsigned long unplug_flag;
-};
-#define PLUGGED_FLAG 1
-void plugger_init(struct plug_handle *plug,
- void (*unplug_fn)(struct plug_handle *));
-void plugger_set_plug(struct plug_handle *plug);
-int plugger_remove_plug(struct plug_handle *plug);
-static inline void plugger_flush(struct plug_handle *plug)
-{
- del_timer_sync(&plug->unplug_timer);
- cancel_work_sync(&plug->unplug_work);
-}
-
/*
* MD's 'extended' device
*/
int delta_disks, new_level, new_layout;
int new_chunk_sectors;
+ atomic_t plug_cnt; /* If device is expecting
+ * more bios soon.
+ */
struct mdk_thread_s *thread; /* management thread */
struct mdk_thread_s *sync_thread; /* doing resync or reconstruct */
sector_t curr_resync; /* last block scheduled */
struct list_head all_mddevs;
struct attribute_group *to_remove;
- struct plug_handle *plug; /* if used by personality */
struct bio_set *bio_set;
extern void md_integrity_add_rdev(mdk_rdev_t *rdev, mddev_t *mddev);
extern int strict_strtoul_scaled(const char *cp, unsigned long *res, int scale);
extern void restore_bitmap_write_access(struct file *file);
-extern void md_unplug(mddev_t *mddev);
extern void mddev_init(mddev_t *mddev);
extern int md_run(mddev_t *mddev);
mddev_t *mddev);
extern struct bio *bio_alloc_mddev(gfp_t gfp_mask, int nr_iovecs,
mddev_t *mddev);
+extern int mddev_check_plugged(mddev_t *mddev);
#endif /* _MD_MD_H */
spin_unlock_irq(&conf->device_lock);
}
-static void md_kick_device(mddev_t *mddev)
-{
- blk_flush_plug(current);
- md_wakeup_thread(mddev->thread);
-}
-
/* Barriers....
* Sometimes we need to suspend IO while we do something else,
* either some resync/recovery, or reconfigure the array.
/* Wait until no block IO is waiting */
wait_event_lock_irq(conf->wait_barrier, !conf->nr_waiting,
- conf->resync_lock, md_kick_device(conf->mddev));
+ conf->resync_lock, );
/* block any new IO from starting */
conf->barrier++;
/* Now wait for all pending IO to complete */
wait_event_lock_irq(conf->wait_barrier,
!conf->nr_pending && conf->barrier < RESYNC_DEPTH,
- conf->resync_lock, md_kick_device(conf->mddev));
+ conf->resync_lock, );
spin_unlock_irq(&conf->resync_lock);
}
conf->nr_waiting++;
wait_event_lock_irq(conf->wait_barrier, !conf->barrier,
conf->resync_lock,
- md_kick_device(conf->mddev));
+ );
conf->nr_waiting--;
}
conf->nr_pending++;
wait_event_lock_irq(conf->wait_barrier,
conf->nr_pending == conf->nr_queued+1,
conf->resync_lock,
- ({ flush_pending_writes(conf);
- md_kick_device(conf->mddev); }));
+ flush_pending_writes(conf));
spin_unlock_irq(&conf->resync_lock);
}
static void unfreeze_array(conf_t *conf)
const unsigned long do_sync = (bio->bi_rw & REQ_SYNC);
const unsigned long do_flush_fua = (bio->bi_rw & (REQ_FLUSH | REQ_FUA));
mdk_rdev_t *blocked_rdev;
+ int plugged;
/*
* Register the new request and wait if the reconstruction
* inc refcount on their rdev. Record them by setting
* bios[x] to bio
*/
+ plugged = mddev_check_plugged(mddev);
+
disks = conf->raid_disks;
retry_write:
blocked_rdev = NULL;
/* In case raid1d snuck in to freeze_array */
wake_up(&conf->wait_barrier);
- if (do_sync || !bitmap)
+ if (do_sync || !bitmap || !plugged)
md_wakeup_thread(mddev->thread);
return 0;
conf_t *conf = mddev->private;
struct list_head *head = &conf->retry_list;
mdk_rdev_t *rdev;
+ struct blk_plug plug;
md_check_recovery(mddev);
-
+
+ blk_start_plug(&plug);
for (;;) {
char b[BDEVNAME_SIZE];
- flush_pending_writes(conf);
+ if (atomic_read(&mddev->plug_cnt) == 0)
+ flush_pending_writes(conf);
spin_lock_irqsave(&conf->device_lock, flags);
if (list_empty(head)) {
}
cond_resched();
}
+ blk_finish_plug(&plug);
}
md_unregister_thread(mddev->thread);
mddev->thread = NULL;
- blk_sync_queue(mddev->queue); /* the unplug fn references 'conf'*/
if (conf->r1bio_pool)
mempool_destroy(conf->r1bio_pool);
kfree(conf->mirrors);
spin_unlock_irq(&conf->device_lock);
}
-static void md_kick_device(mddev_t *mddev)
-{
- blk_flush_plug(current);
- md_wakeup_thread(mddev->thread);
-}
-
/* Barriers....
* Sometimes we need to suspend IO while we do something else,
* either some resync/recovery, or reconfigure the array.
/* Wait until no block IO is waiting (unless 'force') */
wait_event_lock_irq(conf->wait_barrier, force || !conf->nr_waiting,
- conf->resync_lock, md_kick_device(conf->mddev));
+ conf->resync_lock, );
/* block any new IO from starting */
conf->barrier++;
- /* No wait for all pending IO to complete */
+ /* Now wait for all pending IO to complete */
wait_event_lock_irq(conf->wait_barrier,
!conf->nr_pending && conf->barrier < RESYNC_DEPTH,
- conf->resync_lock, md_kick_device(conf->mddev));
+ conf->resync_lock, );
spin_unlock_irq(&conf->resync_lock);
}
conf->nr_waiting++;
wait_event_lock_irq(conf->wait_barrier, !conf->barrier,
conf->resync_lock,
- md_kick_device(conf->mddev));
+ );
conf->nr_waiting--;
}
conf->nr_pending++;
wait_event_lock_irq(conf->wait_barrier,
conf->nr_pending == conf->nr_queued+1,
conf->resync_lock,
- ({ flush_pending_writes(conf);
- md_kick_device(conf->mddev); }));
+ flush_pending_writes(conf));
+
spin_unlock_irq(&conf->resync_lock);
}
const unsigned long do_fua = (bio->bi_rw & REQ_FUA);
unsigned long flags;
mdk_rdev_t *blocked_rdev;
+ int plugged;
if (unlikely(bio->bi_rw & REQ_FLUSH)) {
md_flush_request(mddev, bio);
* inc refcount on their rdev. Record them by setting
* bios[x] to bio
*/
+ plugged = mddev_check_plugged(mddev);
+
raid10_find_phys(conf, r10_bio);
retry_write:
blocked_rdev = NULL;
/* In case raid10d snuck in to freeze_array */
wake_up(&conf->wait_barrier);
- if (do_sync || !mddev->bitmap)
+ if (do_sync || !mddev->bitmap || !plugged)
md_wakeup_thread(mddev->thread);
-
return 0;
}
conf_t *conf = mddev->private;
struct list_head *head = &conf->retry_list;
mdk_rdev_t *rdev;
+ struct blk_plug plug;
md_check_recovery(mddev);
+ blk_start_plug(&plug);
for (;;) {
char b[BDEVNAME_SIZE];
}
cond_resched();
}
+ blk_finish_plug(&plug);
}
*
* We group bitmap updates into batches. Each batch has a number.
* We may write out several batches at once, but that isn't very important.
- * conf->bm_write is the number of the last batch successfully written.
- * conf->bm_flush is the number of the last batch that was closed to
+ * conf->seq_write is the number of the last batch successfully written.
+ * conf->seq_flush is the number of the last batch that was closed to
* new additions.
* When we discover that we will need to write to any block in a stripe
* (in add_stripe_bio) we update the in-memory bitmap and record in sh->bm_seq
- * the number of the batch it will be in. This is bm_flush+1.
+ * the number of the batch it will be in. This is seq_flush+1.
* When we are ready to do a write, if that batch hasn't been written yet,
* we plug the array and queue the stripe for later.
* When an unplug happens, we increment bm_flush, thus closing the current
BUG_ON(!list_empty(&sh->lru));
BUG_ON(atomic_read(&conf->active_stripes)==0);
if (test_bit(STRIPE_HANDLE, &sh->state)) {
- if (test_bit(STRIPE_DELAYED, &sh->state)) {
+ if (test_bit(STRIPE_DELAYED, &sh->state))
list_add_tail(&sh->lru, &conf->delayed_list);
- plugger_set_plug(&conf->plug);
- } else if (test_bit(STRIPE_BIT_DELAY, &sh->state) &&
- sh->bm_seq - conf->seq_write > 0) {
+ else if (test_bit(STRIPE_BIT_DELAY, &sh->state) &&
+ sh->bm_seq - conf->seq_write > 0)
list_add_tail(&sh->lru, &conf->bitmap_list);
- plugger_set_plug(&conf->plug);
- } else {
+ else {
clear_bit(STRIPE_BIT_DELAY, &sh->state);
list_add_tail(&sh->lru, &conf->handle_list);
}
< (conf->max_nr_stripes *3/4)
|| !conf->inactive_blocked),
conf->device_lock,
- md_raid5_kick_device(conf));
+ );
conf->inactive_blocked = 0;
} else
init_stripe(sh, sector, previous);
wait_event_lock_irq(conf->wait_for_stripe,
!list_empty(&conf->inactive_list),
conf->device_lock,
- blk_flush_plug(current));
+ );
osh = get_free_stripe(conf);
spin_unlock_irq(&conf->device_lock);
atomic_set(&nsh->count, 1);
atomic_inc(&conf->preread_active_stripes);
list_add_tail(&sh->lru, &conf->hold_list);
}
- } else
- plugger_set_plug(&conf->plug);
+ }
}
static void activate_bit_delay(raid5_conf_t *conf)
}
}
-void md_raid5_kick_device(raid5_conf_t *conf)
-{
- blk_flush_plug(current);
- raid5_activate_delayed(conf);
- md_wakeup_thread(conf->mddev->thread);
-}
-EXPORT_SYMBOL_GPL(md_raid5_kick_device);
-
-static void raid5_unplug(struct plug_handle *plug)
-{
- raid5_conf_t *conf = container_of(plug, raid5_conf_t, plug);
-
- md_raid5_kick_device(conf);
-}
-
int md_raid5_congested(mddev_t *mddev, int bits)
{
raid5_conf_t *conf = mddev->private;
struct stripe_head *sh;
const int rw = bio_data_dir(bi);
int remaining;
+ int plugged;
if (unlikely(bi->bi_rw & REQ_FLUSH)) {
md_flush_request(mddev, bi);
bi->bi_next = NULL;
bi->bi_phys_segments = 1; /* over-loaded to count active stripes */
+ plugged = mddev_check_plugged(mddev);
for (;logical_sector < last_sector; logical_sector += STRIPE_SECTORS) {
DEFINE_WAIT(w);
int disks, data_disks;
* add failed due to overlap. Flush everything
* and wait a while
*/
- md_raid5_kick_device(conf);
+ md_wakeup_thread(mddev->thread);
release_stripe(sh);
schedule();
goto retry;
}
}
+ if (!plugged)
+ md_wakeup_thread(mddev->thread);
+
spin_lock_irq(&conf->device_lock);
remaining = raid5_dec_bi_phys_segments(bi);
spin_unlock_irq(&conf->device_lock);
struct stripe_head *sh;
raid5_conf_t *conf = mddev->private;
int handled;
+ struct blk_plug plug;
pr_debug("+++ raid5d active\n");
md_check_recovery(mddev);
+ blk_start_plug(&plug);
handled = 0;
spin_lock_irq(&conf->device_lock);
while (1) {
struct bio *bio;
- if (conf->seq_flush != conf->seq_write) {
- int seq = conf->seq_flush;
+ if (atomic_read(&mddev->plug_cnt) == 0 &&
+ !list_empty(&conf->bitmap_list)) {
+ /* Now is a good time to flush some bitmap updates */
+ conf->seq_flush++;
spin_unlock_irq(&conf->device_lock);
bitmap_unplug(mddev->bitmap);
spin_lock_irq(&conf->device_lock);
- conf->seq_write = seq;
+ conf->seq_write = conf->seq_flush;
activate_bit_delay(conf);
}
+ if (atomic_read(&mddev->plug_cnt) == 0)
+ raid5_activate_delayed(conf);
while ((bio = remove_bio_from_retry(conf))) {
int ok;
spin_unlock_irq(&conf->device_lock);
async_tx_issue_pending_all();
+ blk_finish_plug(&plug);
pr_debug("--- raid5d inactive\n");
}
mdname(mddev));
md_set_array_sectors(mddev, raid5_size(mddev, 0, 0));
- plugger_init(&conf->plug, raid5_unplug);
- mddev->plug = &conf->plug;
if (mddev->queue) {
int chunk_size;
/* read-ahead size must cover two whole stripes, which
mddev->queue->backing_dev_info.congested_data = mddev;
mddev->queue->backing_dev_info.congested_fn = raid5_congested;
- mddev->queue->queue_lock = &conf->device_lock;
chunk_size = mddev->chunk_sectors << 9;
blk_queue_io_min(mddev->queue, chunk_size);
mddev->thread = NULL;
if (mddev->queue)
mddev->queue->backing_dev_info.congested_fn = NULL;
- plugger_flush(&conf->plug); /* the unplug fn references 'conf'*/
free_conf(conf);
mddev->private = NULL;
mddev->to_remove = &raid5_attrs_group;
static void *raid45_takeover_raid0(mddev_t *mddev, int level)
{
struct raid0_private_data *raid0_priv = mddev->private;
+ unsigned long long sectors;
/* for raid0 takeover only one zone is supported */
if (raid0_priv->nr_strip_zones > 1) {
return ERR_PTR(-EINVAL);
}
+ sectors = raid0_priv->strip_zone[0].zone_end;
+ sector_div(sectors, raid0_priv->strip_zone[0].nb_dev);
+ mddev->dev_sectors = sectors;
mddev->new_level = level;
mddev->new_layout = ALGORITHM_PARITY_N;
mddev->new_chunk_sectors = mddev->chunk_sectors;
* Cleared when a sync completes.
*/
- struct plug_handle plug;
-
/* per cpu variables */
struct raid5_percpu {
struct page *spare_page; /* Used when checking P/Q in raid6 */
vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
retval = remap_pfn_range(vma, vma->vm_start,
- PFN_DOWN(virt_to_phys(mem->vaddr)),
+ mem->dma_handle >> PAGE_SHIFT,
size, vma->vm_page_prot);
if (retval) {
dev_err(q->dev, "mmap: remap failed with error %d. ", retval);
}
EXPORT_SYMBOL(mfd_cell_disable);
+static int mfd_platform_add_cell(struct platform_device *pdev,
+ const struct mfd_cell *cell)
+{
+ if (!cell)
+ return 0;
+
+ pdev->mfd_cell = kmemdup(cell, sizeof(*cell), GFP_KERNEL);
+ if (!pdev->mfd_cell)
+ return -ENOMEM;
+
+ return 0;
+}
+
static int mfd_add_device(struct device *parent, int id,
const struct mfd_cell *cell,
struct resource *mem_base,
pdev->dev.parent = parent;
- ret = platform_device_add_data(pdev, cell, sizeof(*cell));
+ ret = mfd_platform_add_cell(pdev, cell);
if (ret)
goto fail_res;
return 0;
-/* platform_device_del(pdev); */
fail_res:
kfree(res);
fail_device:
static int gru_irq_count[GRU_CHIPLETS_PER_BLADE];
-static void gru_noop(unsigned int irq)
+static void gru_noop(struct irq_data *d)
{
}
static struct irq_chip gru_chip[GRU_CHIPLETS_PER_BLADE] = {
[0 ... GRU_CHIPLETS_PER_BLADE - 1] {
- .mask = gru_noop,
- .unmask = gru_noop,
- .ack = gru_noop
+ .irq_mask = gru_noop,
+ .irq_unmask = gru_noop,
+ .irq_ack = gru_noop
}
};
oinfo = mtd->ecclayout;
if (!mtd->oobsize || !oinfo || oinfo->oobavail < MTDSWAP_OOBSIZE) {
printk(KERN_ERR "%s: Not enough free bytes in OOB, "
- "%d available, %lu needed.\n",
+ "%d available, %zu needed.\n",
MTDSWAP_PREFIX, oinfo->oobavail, MTDSWAP_OOBSIZE);
return;
}
int err = -EIO;
enum dma_data_direction dir = is_read ? DMA_FROM_DEVICE : DMA_TO_DEVICE;
- if (buf >= high_memory) {
- struct page *pg;
-
- if (((size_t)buf & PAGE_MASK) !=
- ((size_t)(buf + len - 1) & PAGE_MASK)) {
- dev_warn(host->dev, "Buffer not fit in one page\n");
- goto err_buf;
- }
-
- pg = vmalloc_to_page(buf);
- if (pg == 0) {
- dev_err(host->dev, "Failed to vmalloc_to_page\n");
- goto err_buf;
- }
- p = page_address(pg) + ((size_t)buf & ~PAGE_MASK);
- }
+ if (buf >= high_memory)
+ goto err_buf;
dma_dev = host->dma_chan->device;
struct nand_chip *chip = mtd->priv;
struct atmel_nand_host *host = chip->priv;
- if (use_dma && len >= mtd->oobsize)
+ if (use_dma && len > mtd->oobsize)
+ /* only use DMA for bigger than oob size: better performances */
if (atmel_nand_dma_op(mtd, buf, len, 1) == 0)
return;
struct nand_chip *chip = mtd->priv;
struct atmel_nand_host *host = chip->priv;
- if (use_dma && len >= mtd->oobsize)
+ if (use_dma && len > mtd->oobsize)
+ /* only use DMA for bigger than oob size: better performances */
if (atmel_nand_dma_op(mtd, (void *)buf, len, 0) == 0)
return;
nand_chip->options |= NAND_USE_FLASH_BBT;
}
- if (cpu_has_dma() && use_dma) {
+ if (!cpu_has_dma())
+ use_dma = 0;
+
+ if (use_dma) {
dma_cap_mask_t mask;
dma_cap_zero(mask);
}
}
if (use_dma)
- dev_info(host->dev, "Using DMA for NAND access.\n");
+ dev_info(host->dev, "Using %s for DMA transfers.\n",
+ dma_chan_name(host->dma_chan));
else
dev_info(host->dev, "No DMA support for NAND access.\n");
u16 min_eqd; /* in usecs */
u16 max_eqd; /* in usecs */
u16 cur_eqd; /* in usecs */
- u8 msix_vec_idx;
+ u8 eq_idx;
struct napi_struct napi;
};
u32 num_rx_qs;
u32 big_page_size; /* Compounded page size shared by rx wrbs */
- u8 msix_vec_next_idx;
+ u8 eq_next_idx;
struct be_drv_stats drv_stats;
struct vlan_group *vlan_grp;
if (be_cmd_eq_create(adapter, eq, adapter->tx_eq.cur_eqd))
goto tx_eq_free;
- adapter->tx_eq.msix_vec_idx = adapter->msix_vec_next_idx++;
+ adapter->tx_eq.eq_idx = adapter->eq_next_idx++;
/* Alloc TX eth compl queue */
if (rc)
goto err;
- rxo->rx_eq.msix_vec_idx = adapter->msix_vec_next_idx++;
+ rxo->rx_eq.eq_idx = adapter->eq_next_idx++;
/* CQ */
cq = &rxo->cq;
if (!isr)
return IRQ_NONE;
- if ((1 << adapter->tx_eq.msix_vec_idx & isr))
+ if ((1 << adapter->tx_eq.eq_idx & isr))
event_handle(adapter, &adapter->tx_eq);
for_all_rx_queues(adapter, rxo, i) {
- if ((1 << rxo->rx_eq.msix_vec_idx & isr))
+ if ((1 << rxo->rx_eq.eq_idx & isr))
event_handle(adapter, &rxo->rx_eq);
}
}
static inline int be_msix_vec_get(struct be_adapter *adapter,
struct be_eq_obj *eq_obj)
{
- return adapter->msix_entries[eq_obj->msix_vec_idx].vector;
+ return adapter->msix_entries[eq_obj->eq_idx].vector;
}
static int be_request_irq(struct be_adapter *adapter,
be_mcc_queues_destroy(adapter);
be_rx_queues_destroy(adapter);
be_tx_queues_destroy(adapter);
+ adapter->eq_next_idx = 0;
if (be_physfn(adapter) && adapter->sriov_enabled)
for (vf = 0; vf < num_vfs; vf++)
static void be_shutdown(struct pci_dev *pdev)
{
struct be_adapter *adapter = pci_get_drvdata(pdev);
- struct net_device *netdev = adapter->netdev;
- if (netif_running(netdev))
+ if (!adapter)
+ return;
+
+ if (netif_running(adapter->netdev))
cancel_delayed_work_sync(&adapter->work);
- netif_device_detach(netdev);
+ netif_device_detach(adapter->netdev);
be_cmd_reset_function(adapter);
#define bfa_ioc_map_port(__ioc) ((__ioc)->ioc_hwif->ioc_map_port(__ioc))
#define bfa_ioc_notify_fail(__ioc) \
((__ioc)->ioc_hwif->ioc_notify_fail(__ioc))
+#define bfa_ioc_sync_start(__ioc) \
+ ((__ioc)->ioc_hwif->ioc_sync_start(__ioc))
#define bfa_ioc_sync_join(__ioc) \
((__ioc)->ioc_hwif->ioc_sync_join(__ioc))
#define bfa_ioc_sync_leave(__ioc) \
switch (event) {
case IOCPF_E_SEMLOCKED:
if (bfa_ioc_firmware_lock(ioc)) {
- if (bfa_ioc_sync_complete(ioc)) {
+ if (bfa_ioc_sync_start(ioc)) {
iocpf->retry_count = 0;
bfa_ioc_sync_join(ioc);
bfa_fsm_set_state(iocpf, bfa_iocpf_sm_hwinit);
* execution context (driver/bios) must match.
*/
static bool
-bfa_ioc_fwver_valid(struct bfa_ioc *ioc)
+bfa_ioc_fwver_valid(struct bfa_ioc *ioc, u32 boot_env)
{
struct bfi_ioc_image_hdr fwhdr, *drv_fwhdr;
if (fwhdr.signature != drv_fwhdr->signature)
return false;
- if (fwhdr.exec != drv_fwhdr->exec)
+ if (swab32(fwhdr.param) != boot_env)
return false;
return bfa_nw_ioc_fwver_cmp(ioc, &fwhdr);
{
enum bfi_ioc_state ioc_fwstate;
bool fwvalid;
+ u32 boot_env;
ioc_fwstate = readl(ioc->ioc_regs.ioc_fwstate);
+ boot_env = BFI_BOOT_LOADER_OS;
+
if (force)
ioc_fwstate = BFI_IOC_UNINIT;
* check if firmware is valid
*/
fwvalid = (ioc_fwstate == BFI_IOC_UNINIT) ?
- false : bfa_ioc_fwver_valid(ioc);
+ false : bfa_ioc_fwver_valid(ioc, boot_env);
if (!fwvalid) {
- bfa_ioc_boot(ioc, BFI_BOOT_TYPE_NORMAL, ioc->pcidev.device_id);
+ bfa_ioc_boot(ioc, BFI_BOOT_TYPE_NORMAL, boot_env);
return;
}
/**
* Initialize the h/w for any other states.
*/
- bfa_ioc_boot(ioc, BFI_BOOT_TYPE_NORMAL, ioc->pcidev.device_id);
+ bfa_ioc_boot(ioc, BFI_BOOT_TYPE_NORMAL, boot_env);
}
void
*/
static void
bfa_ioc_download_fw(struct bfa_ioc *ioc, u32 boot_type,
- u32 boot_param)
+ u32 boot_env)
{
u32 *fwimg;
u32 pgnum, pgoff;
/*
* Set boot type and boot param at the end.
*/
- writel((swab32(swab32(boot_type))), ((ioc->ioc_regs.smem_page_start)
+ writel(boot_type, ((ioc->ioc_regs.smem_page_start)
+ (BFI_BOOT_TYPE_OFF)));
- writel((swab32(swab32(boot_param))), ((ioc->ioc_regs.smem_page_start)
- + (BFI_BOOT_PARAM_OFF)));
+ writel(boot_env, ((ioc->ioc_regs.smem_page_start)
+ + (BFI_BOOT_LOADER_OFF)));
}
static void
* as the entry vector.
*/
static void
-bfa_ioc_boot(struct bfa_ioc *ioc, u32 boot_type, u32 boot_param)
+bfa_ioc_boot(struct bfa_ioc *ioc, u32 boot_type, u32 boot_env)
{
void __iomem *rb;
* Initialize IOC state of all functions on a chip reset.
*/
rb = ioc->pcidev.pci_bar_kva;
- if (boot_param == BFI_BOOT_TYPE_MEMTEST) {
+ if (boot_type == BFI_BOOT_TYPE_MEMTEST) {
writel(BFI_IOC_MEMTEST, (rb + BFA_IOC0_STATE_REG));
writel(BFI_IOC_MEMTEST, (rb + BFA_IOC1_STATE_REG));
} else {
}
bfa_ioc_msgflush(ioc);
- bfa_ioc_download_fw(ioc, boot_type, boot_param);
+ bfa_ioc_download_fw(ioc, boot_type, boot_env);
/**
* Enable interrupts just before starting LPU
static void
bfa_ioc_recover(struct bfa_ioc *ioc)
{
- u16 bdf;
-
- bdf = (ioc->pcidev.pci_slot << 8 | ioc->pcidev.pci_func << 3 |
- ioc->pcidev.device_id);
-
- pr_crit("Firmware heartbeat failure at %d", bdf);
- BUG_ON(1);
+ pr_crit("Heart Beat of IOC has failed\n");
+ bfa_ioc_stats(ioc, ioc_hbfails);
+ bfa_fsm_send_event(ioc, IOC_E_HBFAIL);
}
static void
bool msix);
void (*ioc_notify_fail) (struct bfa_ioc *ioc);
void (*ioc_ownership_reset) (struct bfa_ioc *ioc);
+ bool (*ioc_sync_start) (struct bfa_ioc *ioc);
void (*ioc_sync_join) (struct bfa_ioc *ioc);
void (*ioc_sync_leave) (struct bfa_ioc *ioc);
void (*ioc_sync_ack) (struct bfa_ioc *ioc);
static void bfa_ioc_ct_isr_mode_set(struct bfa_ioc *ioc, bool msix);
static void bfa_ioc_ct_notify_fail(struct bfa_ioc *ioc);
static void bfa_ioc_ct_ownership_reset(struct bfa_ioc *ioc);
+static bool bfa_ioc_ct_sync_start(struct bfa_ioc *ioc);
static void bfa_ioc_ct_sync_join(struct bfa_ioc *ioc);
static void bfa_ioc_ct_sync_leave(struct bfa_ioc *ioc);
static void bfa_ioc_ct_sync_ack(struct bfa_ioc *ioc);
nw_hwif_ct.ioc_isr_mode_set = bfa_ioc_ct_isr_mode_set;
nw_hwif_ct.ioc_notify_fail = bfa_ioc_ct_notify_fail;
nw_hwif_ct.ioc_ownership_reset = bfa_ioc_ct_ownership_reset;
+ nw_hwif_ct.ioc_sync_start = bfa_ioc_ct_sync_start;
nw_hwif_ct.ioc_sync_join = bfa_ioc_ct_sync_join;
nw_hwif_ct.ioc_sync_leave = bfa_ioc_ct_sync_leave;
nw_hwif_ct.ioc_sync_ack = bfa_ioc_ct_sync_ack;
bfa_nw_ioc_hw_sem_release(ioc);
}
+/**
+ * Synchronized IOC failure processing routines
+ */
+static bool
+bfa_ioc_ct_sync_start(struct bfa_ioc *ioc)
+{
+ u32 r32 = readl(ioc->ioc_regs.ioc_fail_sync);
+ u32 sync_reqd = bfa_ioc_ct_get_sync_reqd(r32);
+
+ /*
+ * Driver load time. If the sync required bit for this PCI fn
+ * is set, it is due to an unclean exit by the driver for this
+ * PCI fn in the previous incarnation. Whoever comes here first
+ * should clean it up, no matter which PCI fn.
+ */
+
+ if (sync_reqd & bfa_ioc_ct_sync_pos(ioc)) {
+ writel(0, ioc->ioc_regs.ioc_fail_sync);
+ writel(1, ioc->ioc_regs.ioc_usage_reg);
+ writel(BFI_IOC_UNINIT, ioc->ioc_regs.ioc_fwstate);
+ writel(BFI_IOC_UNINIT, ioc->ioc_regs.alt_ioc_fwstate);
+ return true;
+ }
+
+ return bfa_ioc_ct_sync_complete(ioc);
+}
/**
* Synchronized IOC failure processing routines
*/
#define BFI_IOC_MSGLEN_MAX 32 /* 32 bytes */
#define BFI_BOOT_TYPE_OFF 8
-#define BFI_BOOT_PARAM_OFF 12
+#define BFI_BOOT_LOADER_OFF 12
-#define BFI_BOOT_TYPE_NORMAL 0 /* param is device id */
+#define BFI_BOOT_TYPE_NORMAL 0
#define BFI_BOOT_TYPE_FLASH 1
#define BFI_BOOT_TYPE_MEMTEST 2
+#define BFI_BOOT_LOADER_OS 0
+
#define BFI_BOOT_MEMTEST_RES_ADDR 0x900
#define BFI_BOOT_MEMTEST_RES_SIG 0xA0A1A2A3
/* Initialize the Rx event handlers */
rx_cbfn.rcb_setup_cbfn = bnad_cb_rcb_setup;
rx_cbfn.rcb_destroy_cbfn = bnad_cb_rcb_destroy;
- rx_cbfn.rcb_destroy_cbfn = NULL;
rx_cbfn.ccb_setup_cbfn = bnad_cb_ccb_setup;
rx_cbfn.ccb_destroy_cbfn = bnad_cb_ccb_destroy;
rx_cbfn.rx_cleanup_cbfn = bnad_cb_rx_cleanup;
for (i = 0; i < (data * 2); i++) {
if ((i % 2) == 0)
bnx2x_set_led(&bp->link_params, &bp->link_vars,
- LED_MODE_OPER, SPEED_1000);
+ LED_MODE_ON, SPEED_1000);
else
bnx2x_set_led(&bp->link_params, &bp->link_vars,
- LED_MODE_OFF, 0);
+ LED_MODE_FRONT_PANEL_OFF, 0);
msleep_interruptible(500);
if (signal_pending(current))
break;
}
- if (bp->link_vars.link_up)
- bnx2x_set_led(&bp->link_params, &bp->link_vars, LED_MODE_OPER,
- bp->link_vars.line_speed);
+ bnx2x_set_led(&bp->link_params, &bp->link_vars,
+ LED_MODE_OPER, bp->link_vars.line_speed);
return 0;
}
bond_info->tx_hashtbl = new_hashtbl;
for (i = 0; i < TLB_HASH_TABLE_SIZE; i++) {
- tlb_init_table_entry(&bond_info->tx_hashtbl[i], 1);
+ tlb_init_table_entry(&bond_info->tx_hashtbl[i], 0);
}
_unlock_tx_hashtbl(bond);
*/
rlb_choose_channel(skb, bond);
- /* The ARP relpy packets must be delayed so that
+ /* The ARP reply packets must be delayed so that
* they can cancel out the influence of the ARP request.
*/
bond->alb_info.rlb_update_delay_counter = RLB_UPDATE_DELAY;
*
* If the permanent hw address of @slave is @bond's hw address, we need to
* find a different hw address to give @slave, that isn't in use by any other
- * slave in the bond. This address must be, of course, one of the premanent
+ * slave in the bond. This address must be, of course, one of the permanent
* addresses of the other slaves.
*
* We go over the slave list, and for each slave there we compare its
* gave this entry index.
*/
u32 tx_bytes; /* Each Client accumulates the BytesTx that
- * were tranmitted to it, and after each
+ * were transmitted to it, and after each
* CallBack the LoadHistory is divided
* by the balance interval
*/
};
struct alb_bond_info {
- struct timer_list alb_timer;
struct tlb_client_info *tx_hashtbl; /* Dynamically allocated */
spinlock_t tx_hashtbl_lock;
u32 unbalanced_load;
struct slave *next_rx_slave;/* next slave to be assigned
* to a new rx client for
*/
- u32 rlb_interval_counter;
u8 primary_is_promisc; /* boolean */
u32 rlb_promisc_timeout_counter;/* counts primary
* promiscuity time
priv->tx_len = 0;
ret = request_threaded_irq(spi->irq, NULL, mcp251x_can_ist,
- IRQF_TRIGGER_FALLING, DEVICE_NAME, priv);
+ pdata->irq_flags ? pdata->irq_flags : IRQF_TRIGGER_FALLING,
+ DEVICE_NAME, priv);
if (ret) {
dev_err(&spi->dev, "failed to acquire irq %d\n", spi->irq);
if (pdata->transceiver_enable)
if (!ofdev->dev.of_match)
return -EINVAL;
- data = (struct mpc5xxx_can_data *)of_dev->dev.of_match->data;
+ data = (struct mpc5xxx_can_data *)ofdev->dev.of_match->data;
base = of_iomap(np, 0);
if (!base) {
| NETIF_F_RXCSUM
| NETIF_F_HIGHDMA
| NETIF_F_LLTX
- | NETIF_F_NETNS_LOCAL;
+ | NETIF_F_NETNS_LOCAL
+ | NETIF_F_VLAN_CHALLENGED;
dev->ethtool_ops = &loopback_ethtool_ops;
dev->header_ops = ð_header_ops;
dev->netdev_ops = &loopback_ops;
err = mlx4_en_init_allocator(priv, ring);
if (err) {
en_err(priv, "Failed initializing ring allocator\n");
+ if (ring->stride <= TXBB_SIZE)
+ ring->buf -= TXBB_SIZE;
ring_ind--;
goto err_allocator;
}
ring_ind = priv->rx_ring_num - 1;
err_allocator:
while (ring_ind >= 0) {
+ if (priv->rx_ring[ring_ind].stride <= TXBB_SIZE)
+ priv->rx_ring[ring_ind].buf -= TXBB_SIZE;
mlx4_en_destroy_allocator(priv, &priv->rx_ring[ring_ind]);
ring_ind--;
}
}
for (port = 1; port <= dev->caps.num_ports; port++) {
+ enum mlx4_port_type port_type = 0;
+ mlx4_SENSE_PORT(dev, port, &port_type);
+ if (port_type)
+ dev->caps.port_type[port] = port_type;
ib_port_default_caps = 0;
err = mlx4_get_port_ib_caps(dev, port, &ib_port_default_caps);
if (err)
goto err_mcg_table_free;
}
}
+ mlx4_set_port_mask(dev);
return 0;
void mlx4_handle_catas_err(struct mlx4_dev *dev);
+int mlx4_SENSE_PORT(struct mlx4_dev *dev, int port,
+ enum mlx4_port_type *type);
void mlx4_do_sense_ports(struct mlx4_dev *dev,
enum mlx4_port_type *stype,
enum mlx4_port_type *defaults);
#include "mlx4.h"
-static int mlx4_SENSE_PORT(struct mlx4_dev *dev, int port,
- enum mlx4_port_type *type)
+int mlx4_SENSE_PORT(struct mlx4_dev *dev, int port,
+ enum mlx4_port_type *type)
{
u64 out_param;
int err = 0;
prev_eedata = eedata;
}
+ /* Store MAC Address in perm_addr */
+ memcpy(dev->perm_addr, dev->dev_addr, ETH_ALEN);
+
dev->base_addr = (unsigned long __force) ioaddr;
dev->irq = irq;
#define MAX_NUM_CARDS 4
-#define MAX_BUFFERS_PER_CMD 32
+#define NETXEN_MAX_FRAGS_PER_TX 14
#define MAX_TSO_HEADER_DESC 2
#define MGMT_CMD_DESC_RESV 4
#define TX_STOP_THRESH ((MAX_SKB_FRAGS >> 2) + MAX_TSO_HEADER_DESC \
*/
struct netxen_cmd_buffer {
struct sk_buff *skb;
- struct netxen_skb_frag frag_array[MAX_BUFFERS_PER_CMD + 1];
+ struct netxen_skb_frag frag_array[MAX_SKB_FRAGS + 1];
u32 frag_count;
};
struct cmd_desc_type0 *hwdesc, *first_desc;
struct pci_dev *pdev;
int i, k;
+ int delta = 0;
+ struct skb_frag_struct *frag;
u32 producer;
int frag_count, no_of_desc;
frag_count = skb_shinfo(skb)->nr_frags + 1;
+ /* 14 frags supported for normal packet and
+ * 32 frags supported for TSO packet
+ */
+ if (!skb_is_gso(skb) && frag_count > NETXEN_MAX_FRAGS_PER_TX) {
+
+ for (i = 0; i < (frag_count - NETXEN_MAX_FRAGS_PER_TX); i++) {
+ frag = &skb_shinfo(skb)->frags[i];
+ delta += frag->size;
+ }
+
+ if (!__pskb_pull_tail(skb, delta))
+ goto drop_packet;
+
+ frag_count = 1 + skb_shinfo(skb)->nr_frags;
+ }
/* 4 fragments per cmd des */
no_of_desc = (frag_count + 3) >> 2;
lock_sock(sk);
if (po->pppoe_dev == dev &&
- sk->sk_state & (PPPOX_CONNECTED | PPPOX_BOUND)) {
+ sk->sk_state & (PPPOX_CONNECTED | PPPOX_BOUND | PPPOX_ZOMBIE)) {
pppox_unbind_sock(sk);
sk->sk_state = PPPOX_ZOMBIE;
sk->sk_state_change(sk);
#define TX_UDPV6_PKT 0x0c
/* Tx defines */
+#define QLCNIC_MAX_FRAGS_PER_TX 14
#define MAX_TSO_HEADER_DESC 2
#define MGMT_CMD_DESC_RESV 4
#define TX_STOP_THRESH ((MAX_SKB_FRAGS >> 2) + MAX_TSO_HEADER_DESC \
struct cmd_desc_type0 *hwdesc, *first_desc;
struct pci_dev *pdev;
struct ethhdr *phdr;
+ int delta = 0;
int i, k;
u32 producer;
}
frag_count = skb_shinfo(skb)->nr_frags + 1;
+ /* 14 frags supported for normal packet and
+ * 32 frags supported for TSO packet
+ */
+ if (!skb_is_gso(skb) && frag_count > QLCNIC_MAX_FRAGS_PER_TX) {
+
+ for (i = 0; i < (frag_count - QLCNIC_MAX_FRAGS_PER_TX); i++)
+ delta += skb_shinfo(skb)->frags[i].size;
+
+ if (!__pskb_pull_tail(skb, delta))
+ goto drop_packet;
+
+ frag_count = 1 + skb_shinfo(skb)->nr_frags;
+ }
/* 4 fragments per cmd des */
no_of_desc = (frag_count + 3) >> 2;
* processing to finish, then directly poll (and ack ) the eventq.
* Finally reenable NAPI and interrupts.
*
- * Since we are touching interrupts the caller should hold the suspend lock
+ * This is for use only during a loopback self-test. It must not
+ * deliver any packets up the stack as this can result in deadlock.
*/
void efx_process_channel_now(struct efx_channel *channel)
{
BUG_ON(channel->channel >= efx->n_channels);
BUG_ON(!channel->enabled);
+ BUG_ON(!efx->loopback_selftest);
/* Disable interrupts and wait for ISRs to complete */
efx_nic_disable_interrupts(efx);
* restart the transmit interface early so the watchdog timer stops */
efx_start_port(efx);
- if (efx_dev_registered(efx))
+ if (efx_dev_registered(efx) && !efx->port_inhibited)
netif_tx_wake_all_queues(efx->net_dev);
efx_for_each_channel(channel, efx)
spin_lock_irqsave(&efx->biu_lock, flags);
value->u32[0] = _efx_readd(efx, reg + 0);
+ rmb();
value->u32[1] = _efx_readd(efx, reg + 4);
value->u32[2] = _efx_readd(efx, reg + 8);
value->u32[3] = _efx_readd(efx, reg + 12);
value->u64[0] = (__force __le64)__raw_readq(membase + addr);
#else
value->u32[0] = (__force __le32)__raw_readl(membase + addr);
+ rmb();
value->u32[1] = (__force __le32)__raw_readl(membase + addr + 4);
#endif
spin_unlock_irqrestore(&efx->biu_lock, flags);
* @eventq_mask: Event queue pointer mask
* @eventq_read_ptr: Event queue read pointer
* @last_eventq_read_ptr: Last event queue read pointer value.
- * @magic_count: Event queue test event count
* @irq_count: Number of IRQs since last adaptive moderation decision
* @irq_mod_score: IRQ moderation score
* @rx_alloc_level: Watermark based heuristic counter for pushing descriptors
unsigned int eventq_mask;
unsigned int eventq_read_ptr;
unsigned int last_eventq_read_ptr;
- unsigned int magic_count;
unsigned int irq_count;
unsigned int irq_mod_score;
static inline efx_qword_t *efx_event(struct efx_channel *channel,
unsigned int index)
{
- return ((efx_qword_t *) (channel->eventq.addr)) + index;
+ return ((efx_qword_t *) (channel->eventq.addr)) +
+ (index & channel->eventq_mask);
}
/* See if an event is present
efx_dword_t reg;
struct efx_nic *efx = channel->efx;
- EFX_POPULATE_DWORD_1(reg, FRF_AZ_EVQ_RPTR, channel->eventq_read_ptr);
+ EFX_POPULATE_DWORD_1(reg, FRF_AZ_EVQ_RPTR,
+ channel->eventq_read_ptr & channel->eventq_mask);
efx_writed_table(efx, ®, efx->type->evq_rptr_tbl_base,
channel->channel);
}
code = EFX_QWORD_FIELD(*event, FSF_AZ_DRV_GEN_EV_MAGIC);
if (code == EFX_CHANNEL_MAGIC_TEST(channel))
- ++channel->magic_count;
+ ; /* ignore */
else if (code == EFX_CHANNEL_MAGIC_FILL(channel))
/* The queue must be empty, so we won't receive any rx
* events, so efx_process_channel() won't refill the
/* Clear this event by marking it all ones */
EFX_SET_QWORD(*p_event);
- /* Increment read pointer */
- read_ptr = (read_ptr + 1) & channel->eventq_mask;
+ ++read_ptr;
ev_code = EFX_QWORD_FIELD(event, FSF_AZ_EV_CODE);
return spent;
}
+/* Check whether an event is present in the eventq at the current
+ * read pointer. Only useful for self-test.
+ */
+bool efx_nic_event_present(struct efx_channel *channel)
+{
+ return efx_event_present(efx_event(channel, channel->eventq_read_ptr));
+}
/* Allocate buffer table entries for event queue */
int efx_nic_probe_eventq(struct efx_channel *channel)
struct efx_tx_queue *tx_queue;
struct efx_rx_queue *rx_queue;
unsigned int read_ptr = channel->eventq_read_ptr;
- unsigned int end_ptr = (read_ptr - 1) & channel->eventq_mask;
+ unsigned int end_ptr = read_ptr + channel->eventq_mask - 1;
do {
efx_qword_t *event = efx_event(channel, read_ptr);
* it's ok to throw away every non-flush event */
EFX_SET_QWORD(*event);
- read_ptr = (read_ptr + 1) & channel->eventq_mask;
+ ++read_ptr;
} while (read_ptr != end_ptr);
channel->eventq_read_ptr = read_ptr;
extern void efx_nic_remove_eventq(struct efx_channel *channel);
extern int efx_nic_process_eventq(struct efx_channel *channel, int rx_quota);
extern void efx_nic_eventq_read_ack(struct efx_channel *channel);
+extern bool efx_nic_event_present(struct efx_channel *channel);
/* MAC/PHY */
extern void falcon_drain_tx_fifo(struct efx_nic *efx);
static int efx_test_interrupts(struct efx_nic *efx,
struct efx_self_tests *tests)
{
- struct efx_channel *channel;
-
netif_dbg(efx, drv, efx->net_dev, "testing interrupts\n");
tests->interrupt = -1;
efx->last_irq_cpu = -1;
smp_wmb();
- /* ACK each interrupting event queue. Receiving an interrupt due to
- * traffic before a test event is raised is considered a pass */
- efx_for_each_channel(channel, efx) {
- if (channel->work_pending)
- efx_process_channel_now(channel);
- if (efx->last_irq_cpu >= 0)
- goto success;
- }
-
efx_nic_generate_interrupt(efx);
/* Wait for arrival of test interrupt. */
struct efx_self_tests *tests)
{
struct efx_nic *efx = channel->efx;
- unsigned int magic_count, count;
+ unsigned int read_ptr, count;
tests->eventq_dma[channel->channel] = -1;
tests->eventq_int[channel->channel] = -1;
tests->eventq_poll[channel->channel] = -1;
- magic_count = channel->magic_count;
+ read_ptr = channel->eventq_read_ptr;
channel->efx->last_irq_cpu = -1;
smp_wmb();
do {
schedule_timeout_uninterruptible(HZ / 100);
- if (channel->work_pending)
- efx_process_channel_now(channel);
-
- if (channel->magic_count != magic_count)
+ if (ACCESS_ONCE(channel->eventq_read_ptr) != read_ptr)
goto eventq_ok;
} while (++count < 2);
}
/* Check to see if event was received even if interrupt wasn't */
- efx_process_channel_now(channel);
- if (channel->magic_count != magic_count) {
+ if (efx_nic_event_present(channel)) {
netif_err(efx, drv, efx->net_dev,
"channel %d event was generated, but "
"failed to trigger an interrupt\n", channel->channel);
__efx_reconfigure_port(efx);
mutex_unlock(&efx->mac_lock);
+ netif_tx_wake_all_queues(efx->net_dev);
+
return rc_test;
}
* queue state. */
smp_mb();
if (unlikely(netif_tx_queue_stopped(tx_queue->core_txq)) &&
- likely(efx->port_enabled)) {
+ likely(efx->port_enabled) &&
+ likely(!efx->port_inhibited)) {
fill_level = tx_queue->insert_count - tx_queue->read_count;
if (fill_level < EFX_TXQ_THRESHOLD(efx)) {
EFX_BUG_ON_PARANOID(!efx_dev_registered(efx));
* @net_dev: the net device to get address for
*
* Older SiS900 and friends, use EEPROM to store MAC address.
- * MAC address is read from read_eeprom() into @net_dev->dev_addr.
+ * MAC address is read from read_eeprom() into @net_dev->dev_addr and
+ * @net_dev->perm_addr.
*/
static int __devinit sis900_get_mac_addr(struct pci_dev * pci_dev, struct net_device *net_dev)
for (i = 0; i < 3; i++)
((u16 *)(net_dev->dev_addr))[i] = read_eeprom(ioaddr, i+EEPROMMACAddr);
+ /* Store MAC Address in perm_addr */
+ memcpy(net_dev->perm_addr, net_dev->dev_addr, ETH_ALEN);
+
return 1;
}
*
* SiS630E model, use APC CMOS RAM to store MAC address.
* APC CMOS RAM is accessed through ISA bridge.
- * MAC address is read into @net_dev->dev_addr.
+ * MAC address is read into @net_dev->dev_addr and
+ * @net_dev->perm_addr.
*/
static int __devinit sis630e_get_mac_addr(struct pci_dev * pci_dev,
outb(0x09 + i, 0x70);
((u8 *)(net_dev->dev_addr))[i] = inb(0x71);
}
+
+ /* Store MAC Address in perm_addr */
+ memcpy(net_dev->perm_addr, net_dev->dev_addr, ETH_ALEN);
+
pci_write_config_byte(isa_bridge, 0x48, reg & ~0x40);
pci_dev_put(isa_bridge);
*
* SiS635 model, set MAC Reload Bit to load Mac address from APC
* to rfdr. rfdr is accessed through rfcr. MAC address is read into
- * @net_dev->dev_addr.
+ * @net_dev->dev_addr and @net_dev->perm_addr.
*/
static int __devinit sis635_get_mac_addr(struct pci_dev * pci_dev,
*( ((u16 *)net_dev->dev_addr) + i) = inw(ioaddr + rfdr);
}
+ /* Store MAC Address in perm_addr */
+ memcpy(net_dev->perm_addr, net_dev->dev_addr, ETH_ALEN);
+
/* enable packet filtering */
outl(rfcrSave | RFEN, rfcr + ioaddr);
* EEDONE signal to refuse EEPROM access by LAN.
* The EEPROM map of SiS962 or SiS963 is different to SiS900.
* The signature field in SiS962 or SiS963 spec is meaningless.
- * MAC address is read into @net_dev->dev_addr.
+ * MAC address is read into @net_dev->dev_addr and @net_dev->perm_addr.
*/
static int __devinit sis96x_get_mac_addr(struct pci_dev * pci_dev,
for (i = 0; i < 3; i++)
((u16 *)(net_dev->dev_addr))[i] = read_eeprom(ioaddr, i+EEPROMMACAddr);
+ /* Store MAC Address in perm_addr */
+ memcpy(net_dev->perm_addr, net_dev->dev_addr, ETH_ALEN);
+
outl(EEDONE, ee_addr);
return 1;
} else {
SMSC_TRACE(PROBE, "PHY will be autodetected.");
spin_lock_init(&pdata->dev_lock);
+ spin_lock_init(&pdata->mac_lock);
if (pdata->ioaddr == 0) {
SMSC_WARNING(PROBE, "pdata->ioaddr: 0x00000000");
/* workaround for platforms without an eeprom, where the mac address
* is stored elsewhere and set by the bootloader. This saves the
* mac address before resetting the device */
- if (pdata->config.flags & SMSC911X_SAVE_MAC_ADDRESS)
+ if (pdata->config.flags & SMSC911X_SAVE_MAC_ADDRESS) {
+ spin_lock_irq(&pdata->mac_lock);
smsc911x_read_mac_address(dev);
+ spin_unlock_irq(&pdata->mac_lock);
+ }
/* Reset the LAN911x */
if (smsc911x_soft_reset(pdata))
SMSC_TRACE(PROBE, "Network interface: \"%s\"", dev->name);
}
- spin_lock_init(&pdata->mac_lock);
-
retval = smsc911x_mii_init(pdev, dev);
if (retval) {
SMSC_WARNING(PROBE,
#undef DWMAC_DMA_DEBUG
#ifdef DWMAC_DMA_DEBUG
-#define DBG(fmt, args...) printk(fmt, ## args)
+#define DWMAC_LIB_DBG(fmt, args...) printk(fmt, ## args)
#else
-#define DBG(fmt, args...) do { } while (0)
+#define DWMAC_LIB_DBG(fmt, args...) do { } while (0)
#endif
/* CSR1 enables the transmit DMA to check for new descriptor */
/* read the status register (CSR5) */
u32 intr_status = readl(ioaddr + DMA_STATUS);
- DBG(INFO, "%s: [CSR5: 0x%08x]\n", __func__, intr_status);
+ DWMAC_LIB_DBG(KERN_INFO "%s: [CSR5: 0x%08x]\n", __func__, intr_status);
#ifdef DWMAC_DMA_DEBUG
/* It displays the DMA process states (CSR5 register) */
show_tx_process_state(intr_status);
#endif
/* ABNORMAL interrupts */
if (unlikely(intr_status & DMA_STATUS_AIS)) {
- DBG(INFO, "CSR5[15] DMA ABNORMAL IRQ: ");
+ DWMAC_LIB_DBG(KERN_INFO "CSR5[15] DMA ABNORMAL IRQ: ");
if (unlikely(intr_status & DMA_STATUS_UNF)) {
- DBG(INFO, "transmit underflow\n");
+ DWMAC_LIB_DBG(KERN_INFO "transmit underflow\n");
ret = tx_hard_error_bump_tc;
x->tx_undeflow_irq++;
}
if (unlikely(intr_status & DMA_STATUS_TJT)) {
- DBG(INFO, "transmit jabber\n");
+ DWMAC_LIB_DBG(KERN_INFO "transmit jabber\n");
x->tx_jabber_irq++;
}
if (unlikely(intr_status & DMA_STATUS_OVF)) {
- DBG(INFO, "recv overflow\n");
+ DWMAC_LIB_DBG(KERN_INFO "recv overflow\n");
x->rx_overflow_irq++;
}
if (unlikely(intr_status & DMA_STATUS_RU)) {
- DBG(INFO, "receive buffer unavailable\n");
+ DWMAC_LIB_DBG(KERN_INFO "receive buffer unavailable\n");
x->rx_buf_unav_irq++;
}
if (unlikely(intr_status & DMA_STATUS_RPS)) {
- DBG(INFO, "receive process stopped\n");
+ DWMAC_LIB_DBG(KERN_INFO "receive process stopped\n");
x->rx_process_stopped_irq++;
}
if (unlikely(intr_status & DMA_STATUS_RWT)) {
- DBG(INFO, "receive watchdog\n");
+ DWMAC_LIB_DBG(KERN_INFO "receive watchdog\n");
x->rx_watchdog_irq++;
}
if (unlikely(intr_status & DMA_STATUS_ETI)) {
- DBG(INFO, "transmit early interrupt\n");
+ DWMAC_LIB_DBG(KERN_INFO "transmit early interrupt\n");
x->tx_early_irq++;
}
if (unlikely(intr_status & DMA_STATUS_TPS)) {
- DBG(INFO, "transmit process stopped\n");
+ DWMAC_LIB_DBG(KERN_INFO "transmit process stopped\n");
x->tx_process_stopped_irq++;
ret = tx_hard_error;
}
if (unlikely(intr_status & DMA_STATUS_FBI)) {
- DBG(INFO, "fatal bus error\n");
+ DWMAC_LIB_DBG(KERN_INFO "fatal bus error\n");
x->fatal_bus_error_irq++;
ret = tx_hard_error;
}
/* Clear the interrupt by writing a logic 1 to the CSR5[15-0] */
writel((intr_status & 0x1ffff), ioaddr + DMA_STATUS);
- DBG(INFO, "\n\n");
+ DWMAC_LIB_DBG(KERN_INFO "\n\n");
return ret;
}
priv->hw->dma->dma_mode(priv->ioaddr, tc, SF_DMA_MODE);
priv->xstats.threshold = tc;
}
- stmmac_tx_err(priv);
} else if (unlikely(status == tx_hard_error))
stmmac_tx_err(priv);
}
stmmac_verify_args();
- ret = stmmac_init_phy(dev);
- if (unlikely(ret)) {
- pr_err("%s: Cannot attach to PHY (error: %d)\n", __func__, ret);
- return ret;
- }
-
- /* Request the IRQ lines */
- ret = request_irq(dev->irq, stmmac_interrupt,
- IRQF_SHARED, dev->name, dev);
- if (unlikely(ret < 0)) {
- pr_err("%s: ERROR: allocating the IRQ %d (error: %d)\n",
- __func__, dev->irq, ret);
- return ret;
- }
-
#ifdef CONFIG_STMMAC_TIMER
priv->tm = kzalloc(sizeof(struct stmmac_timer *), GFP_KERNEL);
if (unlikely(priv->tm == NULL)) {
} else
priv->tm->enable = 1;
#endif
+ ret = stmmac_init_phy(dev);
+ if (unlikely(ret)) {
+ pr_err("%s: Cannot attach to PHY (error: %d)\n", __func__, ret);
+ goto open_error;
+ }
/* Create and initialize the TX/RX descriptors chains. */
priv->dma_tx_size = STMMAC_ALIGN(dma_txsize);
init_dma_desc_rings(dev);
/* DMA initialization and SW reset */
- if (unlikely(priv->hw->dma->init(priv->ioaddr, priv->plat->pbl,
- priv->dma_tx_phy,
- priv->dma_rx_phy) < 0)) {
-
+ ret = priv->hw->dma->init(priv->ioaddr, priv->plat->pbl,
+ priv->dma_tx_phy, priv->dma_rx_phy);
+ if (ret < 0) {
pr_err("%s: DMA initialization failed\n", __func__);
- return -1;
+ goto open_error;
}
/* Copy the MAC addr into the HW */
writel(0xffffffff, priv->ioaddr + MMC_HIGH_INTR_MASK);
writel(0xffffffff, priv->ioaddr + MMC_LOW_INTR_MASK);
+ /* Request the IRQ lines */
+ ret = request_irq(dev->irq, stmmac_interrupt,
+ IRQF_SHARED, dev->name, dev);
+ if (unlikely(ret < 0)) {
+ pr_err("%s: ERROR: allocating the IRQ %d (error: %d)\n",
+ __func__, dev->irq, ret);
+ goto open_error;
+ }
+
/* Enable the MAC Rx/Tx */
stmmac_enable_mac(priv->ioaddr);
napi_enable(&priv->napi);
skb_queue_head_init(&priv->rx_recycle);
netif_start_queue(dev);
+
return 0;
+
+open_error:
+#ifdef CONFIG_STMMAC_TIMER
+ kfree(priv->tm);
+#endif
+ if (priv->phydev)
+ phy_disconnect(priv->phydev);
+
+ return ret;
}
/**
/*
* The NIC has told us that a packet has been downloaded onto the card, we must
* find out which packet it has done, clear the skb and information for the packet
- * then advance around the ring for all tranmitted packets
+ * then advance around the ring for all transmitted packets
*/
static void xl_dn_comp(struct net_device *dev)
if (lan_status_diff & LSC_SOFT_ERR)
printk(KERN_WARNING "%s: Adapter transmitted Soft Error Report Mac Frame\n",dev->name);
if (lan_status_diff & LSC_TRAN_BCN)
- printk(KERN_INFO "%s: We are tranmitting the beacon, aaah\n",dev->name);
+ printk(KERN_INFO "%s: We are transmitting the beacon, aaah\n",dev->name);
if (lan_status_diff & LSC_SS)
printk(KERN_INFO "%s: Single Station on the ring\n", dev->name);
if (lan_status_diff & LSC_RING_REC)
if (lan_status_diff & LSC_SOFT_ERR)
printk(KERN_WARNING "%s: Adapter transmitted Soft Error Report Mac Frame\n", dev->name);
if (lan_status_diff & LSC_TRAN_BCN)
- printk(KERN_INFO "%s: We are tranmitting the beacon, aaah\n", dev->name);
+ printk(KERN_INFO "%s: We are transmitting the beacon, aaah\n", dev->name);
if (lan_status_diff & LSC_SS)
printk(KERN_INFO "%s: Single Station on the ring\n", dev->name);
if (lan_status_diff & LSC_RING_REC)
if (lan_status_diff & LSC_SOFT_ERR)
printk(KERN_WARNING "%s: Adapter transmitted Soft Error Report Mac Frame\n",dev->name);
if (lan_status_diff & LSC_TRAN_BCN)
- printk(KERN_INFO "%s: We are tranmitting the beacon, aaah\n",dev->name);
+ printk(KERN_INFO "%s: We are transmitting the beacon, aaah\n",dev->name);
if (lan_status_diff & LSC_SS)
printk(KERN_INFO "%s: Single Station on the ring\n", dev->name);
if (lan_status_diff & LSC_RING_REC)
USB_DEVICE(0x0424, 0x9909),
.driver_info = (unsigned long) &smsc95xx_info,
},
+ {
+ /* SMSC LAN9530 USB Ethernet Device */
+ USB_DEVICE(0x0424, 0x9530),
+ .driver_info = (unsigned long) &smsc95xx_info,
+ },
+ {
+ /* SMSC LAN9730 USB Ethernet Device */
+ USB_DEVICE(0x0424, 0x9730),
+ .driver_info = (unsigned long) &smsc95xx_info,
+ },
+ {
+ /* SMSC LAN89530 USB Ethernet Device */
+ USB_DEVICE(0x0424, 0x9E08),
+ .driver_info = (unsigned long) &smsc95xx_info,
+ },
{ }, /* END */
};
MODULE_DEVICE_TABLE(usb, products);
}
ret = ath9k_htc_hw_init(hif_dev->htc_handle,
- &hif_dev->udev->dev, hif_dev->device_id,
+ &interface->dev, hif_dev->device_id,
hif_dev->udev->product, id->driver_info);
if (ret) {
ret = -EINVAL;
#endif
static struct usb_driver ath9k_hif_usb_driver = {
- .name = "ath9k_hif_usb",
+ .name = KBUILD_MODNAME,
.probe = ath9k_hif_usb_probe,
.disconnect = ath9k_hif_usb_disconnect,
#ifdef CONFIG_PM
ah->txchainmask = common->tx_chainmask;
ah->rxchainmask = common->rx_chainmask;
- if ((common->bus_ops->ath_bus_type != ATH_USB) && !ah->chip_fullsleep) {
- ath9k_hw_abortpcurecv(ah);
- if (!ath9k_hw_stopdmarecv(ah)) {
- ath_dbg(common, ATH_DBG_XMIT,
- "Failed to stop receive dma\n");
- bChannelChange = false;
- }
- }
-
if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE))
return -EIO;
{ AR_SREV_VERSION_9287, "9287" },
{ AR_SREV_VERSION_9271, "9271" },
{ AR_SREV_VERSION_9300, "9300" },
+ { AR_SREV_VERSION_9485, "9485" },
};
/* For devices with external radios */
}
EXPORT_SYMBOL(ath9k_hw_abortpcurecv);
-bool ath9k_hw_stopdmarecv(struct ath_hw *ah)
+bool ath9k_hw_stopdmarecv(struct ath_hw *ah, bool *reset)
{
#define AH_RX_STOP_DMA_TIMEOUT 10000 /* usec */
#define AH_RX_TIME_QUANTUM 100 /* usec */
struct ath_common *common = ath9k_hw_common(ah);
+ u32 mac_status, last_mac_status = 0;
int i;
+ /* Enable access to the DMA observation bus */
+ REG_WRITE(ah, AR_MACMISC,
+ ((AR_MACMISC_DMA_OBS_LINE_8 << AR_MACMISC_DMA_OBS_S) |
+ (AR_MACMISC_MISC_OBS_BUS_1 <<
+ AR_MACMISC_MISC_OBS_BUS_MSB_S)));
+
REG_WRITE(ah, AR_CR, AR_CR_RXD);
/* Wait for rx enable bit to go low */
for (i = AH_RX_STOP_DMA_TIMEOUT / AH_TIME_QUANTUM; i != 0; i--) {
if ((REG_READ(ah, AR_CR) & AR_CR_RXE) == 0)
break;
+
+ if (!AR_SREV_9300_20_OR_LATER(ah)) {
+ mac_status = REG_READ(ah, AR_DMADBG_7) & 0x7f0;
+ if (mac_status == 0x1c0 && mac_status == last_mac_status) {
+ *reset = true;
+ break;
+ }
+
+ last_mac_status = mac_status;
+ }
+
udelay(AH_TIME_QUANTUM);
}
if (i == 0) {
ath_err(common,
- "DMA failed to stop in %d ms AR_CR=0x%08x AR_DIAG_SW=0x%08x\n",
+ "DMA failed to stop in %d ms AR_CR=0x%08x AR_DIAG_SW=0x%08x DMADBG_7=0x%08x\n",
AH_RX_STOP_DMA_TIMEOUT / 1000,
REG_READ(ah, AR_CR),
- REG_READ(ah, AR_DIAG_SW));
+ REG_READ(ah, AR_DIAG_SW),
+ REG_READ(ah, AR_DMADBG_7));
return false;
} else {
return true;
void ath9k_hw_putrxbuf(struct ath_hw *ah, u32 rxdp);
void ath9k_hw_startpcureceive(struct ath_hw *ah, bool is_scanning);
void ath9k_hw_abortpcurecv(struct ath_hw *ah);
-bool ath9k_hw_stopdmarecv(struct ath_hw *ah);
+bool ath9k_hw_stopdmarecv(struct ath_hw *ah, bool *reset);
int ath9k_hw_beaconq_setup(struct ath_hw *ah);
/* Interrupt Handling */
ath9k_calculate_iter_data(hw, vif, &iter_data);
- ath9k_ps_wakeup(sc);
/* Set BSSID mask. */
memcpy(common->bssidmask, iter_data.mask, ETH_ALEN);
ath_hw_setbssidmask(common);
}
ath9k_hw_set_interrupts(ah, ah->imask);
- ath9k_ps_restore(sc);
/* Set up ANI */
if ((iter_data.naps + iter_data.nadhocs) > 0) {
struct ath_vif *avp = (void *)vif->drv_priv;
int ret = 0;
+ ath9k_ps_wakeup(sc);
mutex_lock(&sc->mutex);
switch (vif->type) {
ath9k_do_vif_add_setup(hw, vif);
out:
mutex_unlock(&sc->mutex);
+ ath9k_ps_restore(sc);
return ret;
}
ath_dbg(common, ATH_DBG_CONFIG, "Change Interface\n");
mutex_lock(&sc->mutex);
+ ath9k_ps_wakeup(sc);
/* See if new interface type is valid. */
if ((new_type == NL80211_IFTYPE_ADHOC) &&
ath9k_do_vif_add_setup(hw, vif);
out:
+ ath9k_ps_restore(sc);
mutex_unlock(&sc->mutex);
return ret;
}
ath_dbg(common, ATH_DBG_CONFIG, "Detach Interface\n");
+ ath9k_ps_wakeup(sc);
mutex_lock(&sc->mutex);
sc->nvifs--;
ath9k_calculate_summary_state(hw, NULL);
mutex_unlock(&sc->mutex);
+ ath9k_ps_restore(sc);
}
static void ath9k_enable_ps(struct ath_softc *sc)
txq = sc->tx.txq_map[queue];
+ ath9k_ps_wakeup(sc);
mutex_lock(&sc->mutex);
memset(&qi, 0, sizeof(struct ath9k_tx_queue_info));
ath_beaconq_config(sc);
mutex_unlock(&sc->mutex);
+ ath9k_ps_restore(sc);
return ret;
}
int slottime;
int error;
+ ath9k_ps_wakeup(sc);
mutex_lock(&sc->mutex);
if (changed & BSS_CHANGED_BSSID) {
}
mutex_unlock(&sc->mutex);
+ ath9k_ps_restore(sc);
}
static u64 ath9k_get_tsf(struct ieee80211_hw *hw)
bool ath_stoprecv(struct ath_softc *sc)
{
struct ath_hw *ah = sc->sc_ah;
- bool stopped;
+ bool stopped, reset = false;
spin_lock_bh(&sc->rx.rxbuflock);
ath9k_hw_abortpcurecv(ah);
ath9k_hw_setrxfilter(ah, 0);
- stopped = ath9k_hw_stopdmarecv(ah);
+ stopped = ath9k_hw_stopdmarecv(ah, &reset);
if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA)
ath_edma_stop_recv(sc);
"confusing the DMA engine when we start RX up\n");
ATH_DBG_WARN_ON_ONCE(!stopped);
}
- return stopped;
+ return stopped || reset;
}
void ath_flushrecv(struct ath_softc *sc)
{APL9_WORLD, CTL_ETSI, CTL_ETSI},
{APL3_FCCA, CTL_FCC, CTL_FCC},
+ {APL7_FCCA, CTL_FCC, CTL_FCC},
{APL1_ETSIC, CTL_FCC, CTL_ETSI},
{APL2_ETSIC, CTL_FCC, CTL_ETSI},
{APL2_APLD, CTL_FCC, NO_CTL},
dmaaddr = meta->dmaaddr;
goto drop_recycle_buffer;
}
- if (unlikely(len > ring->rx_buffersize)) {
+ if (unlikely(len + ring->frameoffset > ring->rx_buffersize)) {
/* The data did not fit into one descriptor buffer
* and is split over multiple buffers.
* This should never happen, as we try to allocate buffers
/* DMA engine tuning knobs */
#define B43_TXRING_SLOTS 256
#define B43_RXRING_SLOTS 64
-#define B43_DMA0_RX_BUFFERSIZE IEEE80211_MAX_FRAME_LEN
+#define B43_DMA0_RX_BUFFERSIZE (B43_DMA0_RX_FRAMEOFFSET + IEEE80211_MAX_FRAME_LEN)
/* Pointer poison */
#define B43_DMA_PTR_POISON ((void *)ERR_PTR(-ENOMEM))
config IWLWIFI_LEGACY
- tristate "Intel Wireless Wifi legacy devices"
- depends on PCI && MAC80211
+ tristate
select FW_LOADER
select NEW_LEDS
select LEDS_CLASS
config IWL4965
tristate "Intel Wireless WiFi 4965AGN (iwl4965)"
- depends on IWLWIFI_LEGACY
+ depends on PCI && MAC80211
+ select IWLWIFI_LEGACY
---help---
This option enables support for
config IWL3945
tristate "Intel PRO/Wireless 3945ABG/BG Network Connection (iwl3945)"
- depends on IWLWIFI_LEGACY
+ depends on PCI && MAC80211
+ select IWLWIFI_LEGACY
---help---
Select to build the driver supporting the:
/* RSSI to dBm */
#define IWL39_RSSI_OFFSET 95
-#define IWL_DEFAULT_TX_POWER 0x0F
-
/*
* EEPROM related constants, enums, and structures.
*/
#define IWL4965_DEFAULT_TX_RETRY 15
-/* Limit range of txpower output target to be between these values */
-#define IWL4965_TX_POWER_TARGET_POWER_MIN (0) /* 0 dBm: 1 milliwatt */
-
/* EEPROM */
#define IWL4965_FIRST_AMPDU_QUEUE 10
struct ieee80211_channel *geo_ch;
struct ieee80211_rate *rates;
int i = 0;
+ s8 max_tx_power = 0;
if (priv->bands[IEEE80211_BAND_2GHZ].n_bitrates ||
priv->bands[IEEE80211_BAND_5GHZ].n_bitrates) {
geo_ch->flags |= ch->ht40_extension_channel;
- if (ch->max_power_avg > priv->tx_power_device_lmt)
- priv->tx_power_device_lmt = ch->max_power_avg;
+ if (ch->max_power_avg > max_tx_power)
+ max_tx_power = ch->max_power_avg;
} else {
geo_ch->flags |= IEEE80211_CHAN_DISABLED;
}
geo_ch->flags);
}
+ priv->tx_power_device_lmt = max_tx_power;
+ priv->tx_power_user_lmt = max_tx_power;
+ priv->tx_power_next = max_tx_power;
+
if ((priv->bands[IEEE80211_BAND_5GHZ].n_channels == 0) &&
priv->cfg->sku & IWL_SKU_A) {
IWL_INFO(priv, "Incorrectly detected BG card as ABG. "
if (!priv->cfg->ops->lib->send_tx_power)
return -EOPNOTSUPP;
- if (tx_power < IWL4965_TX_POWER_TARGET_POWER_MIN) {
+ /* 0 dBm mean 1 milliwatt */
+ if (tx_power < 0) {
IWL_WARN(priv,
- "Requested user TXPOWER %d below lower limit %d.\n",
- tx_power,
- IWL4965_TX_POWER_TARGET_POWER_MIN);
+ "Requested user TXPOWER %d below 1 mW.\n",
+ tx_power);
return -EINVAL;
}
flags & EEPROM_CHANNEL_RADAR))
? "" : "not ");
- /* Set the tx_power_user_lmt to the highest power
- * supported by any channel */
- if (eeprom_ch_info[ch].max_power_avg >
- priv->tx_power_user_lmt)
- priv->tx_power_user_lmt =
- eeprom_ch_info[ch].max_power_avg;
-
ch_info++;
}
}
priv->force_reset[IWL_FW_RESET].reset_duration =
IWL_DELAY_NEXT_FORCE_FW_RELOAD;
-
- priv->tx_power_user_lmt = IWL_DEFAULT_TX_POWER;
- priv->tx_power_next = IWL_DEFAULT_TX_POWER;
-
if (eeprom->version < EEPROM_3945_EEPROM_VERSION) {
IWL_WARN(priv, "Unsupported EEPROM version: 0x%04X\n",
eeprom->version);
iwl_legacy_init_scan_params(priv);
- /* Set the tx_power_user_lmt to the lowest power level
- * this value will get overwritten by channel max power avg
- * from eeprom */
- priv->tx_power_user_lmt = IWL4965_TX_POWER_TARGET_POWER_MIN;
- priv->tx_power_next = IWL4965_TX_POWER_TARGET_POWER_MIN;
-
ret = iwl_legacy_init_channel_map(priv);
if (ret) {
IWL_ERR(priv, "initializing regulatory failed: %d\n", ret);
struct iwl_cfg iwl5300_agn_cfg = {
.name = "Intel(R) Ultimate N WiFi Link 5300 AGN",
IWL_DEVICE_5000,
+ /* at least EEPROM 0x11A has wrong info */
+ .valid_tx_ant = ANT_ABC, /* .cfg overwrite */
+ .valid_rx_ant = ANT_ABC, /* .cfg overwrite */
.ht_params = &iwl5000_ht_params,
};
/* 6x00 Specific */
#define EEPROM_6000_TX_POWER_VERSION (4)
-#define EEPROM_6000_EEPROM_VERSION (0x434)
+#define EEPROM_6000_EEPROM_VERSION (0x423)
/* 6x50 Specific */
#define EEPROM_6050_TX_POWER_VERSION (4)
struct mwl8k_priv {
struct ieee80211_hw *hw;
struct pci_dev *pdev;
+ int irq;
struct mwl8k_device_info *device_info;
rc = request_irq(priv->pdev->irq, mwl8k_interrupt,
IRQF_SHARED, MWL8K_NAME, hw);
if (rc) {
+ priv->irq = -1;
wiphy_err(hw->wiphy, "failed to register IRQ handler\n");
return -EIO;
}
+ priv->irq = priv->pdev->irq;
/* Enable TX reclaim and RX tasklets. */
tasklet_enable(&priv->poll_tx_task);
if (rc) {
iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK);
free_irq(priv->pdev->irq, hw);
+ priv->irq = -1;
tasklet_disable(&priv->poll_tx_task);
tasklet_disable(&priv->poll_rx_task);
}
/* Disable interrupts */
iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK);
- free_irq(priv->pdev->irq, hw);
+ if (priv->irq != -1) {
+ free_irq(priv->pdev->irq, hw);
+ priv->irq = -1;
+ }
/* Stop finalize join worker */
cancel_work_sync(&priv->finalize_join_worker);
{USB_DEVICE(0x0846, 0x4210)}, /* Netgear WG121 the second ? */
{USB_DEVICE(0x0846, 0x4220)}, /* Netgear WG111 */
{USB_DEVICE(0x09aa, 0x1000)}, /* Spinnaker Proto board */
+ {USB_DEVICE(0x0bf8, 0x1007)}, /* Fujitsu E-5400 USB */
{USB_DEVICE(0x0cde, 0x0006)}, /* Medion 40900, Roper Europe */
{USB_DEVICE(0x0db0, 0x6826)}, /* MSI UB54G (MS-6826) */
{USB_DEVICE(0x107b, 0x55f2)}, /* Gateway WGU-210 (Gemtek) */
{USB_DEVICE(0x1915, 0x2235)}, /* Linksys WUSB54G Portable OEM */
{USB_DEVICE(0x2001, 0x3701)}, /* DLink DWL-G120 Spinnaker */
{USB_DEVICE(0x2001, 0x3703)}, /* DLink DWL-G122 */
+ {USB_DEVICE(0x2001, 0x3762)}, /* Conceptronic C54U */
{USB_DEVICE(0x5041, 0x2234)}, /* Linksys WUSB54G */
{USB_DEVICE(0x5041, 0x2235)}, /* Linksys WUSB54G Portable */
struct p54_tx_info *p54info;
struct p54_hdr *hdr;
struct p54_tx_data *txhdr;
- unsigned int padding, len, extra_len;
+ unsigned int padding, len, extra_len = 0;
int i, j, ridx;
u16 hdr_flags = 0, aid = 0;
u8 rate, queue = 0, crypt_offset = 0;
* Stop all work.
*/
cancel_work_sync(&rt2x00dev->intf_work);
- cancel_work_sync(&rt2x00dev->rxdone_work);
- cancel_work_sync(&rt2x00dev->txdone_work);
+ if (rt2x00_is_usb(rt2x00dev)) {
+ cancel_work_sync(&rt2x00dev->rxdone_work);
+ cancel_work_sync(&rt2x00dev->txdone_work);
+ }
destroy_workqueue(rt2x00dev->workqueue);
/*
u8 efuse_data, word_cnts = 0;
u16 efuse_addr = 0;
- u8 hworden;
+ u8 hworden = 0;
u8 tmpdata[8];
if (data == NULL)
u16 box_reg, box_extreg;
u8 u1b_tmp;
bool isfw_read = false;
- u8 buf_index;
+ u8 buf_index = 0;
bool bwrite_sucess = false;
u8 wait_h2c_limmit = 100;
u8 wait_writeh2c_limmit = 100;
static void _rtl_usb_io_handler_release(struct ieee80211_hw *hw)
{
- struct rtl_priv *rtlpriv = rtl_priv(hw);
+ struct rtl_priv __maybe_unused *rtlpriv = rtl_priv(hw);
mutex_destroy(&rtlpriv->io.bb_mutex);
}
module_exit(wl1271_exit);
MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Luciano Coelho <luciano.coelho@nokia.com>");
+MODULE_AUTHOR("Luciano Coelho <coelho@ti.com>");
MODULE_AUTHOR("Juuso Oikarinen <juuso.oikarinen@nokia.com>");
MODULE_FIRMWARE(WL1271_FW_NAME);
MODULE_FIRMWARE(WL1271_AP_FW_NAME);
module_exit(wl1271_exit);
MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Luciano Coelho <luciano.coelho@nokia.com>");
+MODULE_AUTHOR("Luciano Coelho <coelho@ti.com>");
MODULE_AUTHOR("Juuso Oikarinen <juuso.oikarinen@nokia.com>");
MODULE_FIRMWARE(WL1271_FW_NAME);
MODULE_FIRMWARE(WL1271_AP_FW_NAME);
kfree(wl->nvs);
- wl->nvs = kzalloc(sizeof(struct wl1271_nvs_file), GFP_KERNEL);
+ if (len != sizeof(struct wl1271_nvs_file))
+ return -EINVAL;
+
+ wl->nvs = kzalloc(len, GFP_KERNEL);
if (!wl->nvs) {
wl1271_error("could not allocate memory for the nvs file");
ret = -ENOMEM;
usb = urb->context;
rx = &usb->rx;
- zd_usb_reset_rx_idle_timer(usb);
+ tasklet_schedule(&rx->reset_timer_tasklet);
if (length%rx->usb_packet_size > rx->usb_packet_size-4) {
/* If there is an old first fragment, we don't care. */
__zd_usb_disable_rx(usb);
mutex_unlock(&rx->setup_mutex);
+ tasklet_kill(&rx->reset_timer_tasklet);
cancel_delayed_work_sync(&rx->idle_work);
}
zd_usb_reset_rx(usb);
}
+static void zd_usb_reset_rx_idle_timer_tasklet(unsigned long param)
+{
+ struct zd_usb *usb = (struct zd_usb *)param;
+
+ zd_usb_reset_rx_idle_timer(usb);
+}
+
void zd_usb_reset_rx_idle_timer(struct zd_usb *usb)
{
struct zd_usb_rx *rx = &usb->rx;
static inline void init_usb_rx(struct zd_usb *usb)
{
struct zd_usb_rx *rx = &usb->rx;
+
spin_lock_init(&rx->lock);
mutex_init(&rx->setup_mutex);
if (interface_to_usbdev(usb->intf)->speed == USB_SPEED_HIGH) {
}
ZD_ASSERT(rx->fragment_length == 0);
INIT_DELAYED_WORK(&rx->idle_work, zd_rx_idle_timer_handler);
+ rx->reset_timer_tasklet.func = zd_usb_reset_rx_idle_timer_tasklet;
+ rx->reset_timer_tasklet.data = (unsigned long)usb;
}
static inline void init_usb_tx(struct zd_usb *usb)
{
struct zd_usb_tx *tx = &usb->tx;
+
spin_lock_init(&tx->lock);
atomic_set(&tx->enabled, 0);
tx->stopped = 0;
if (urb->status && !usb->cmd_error)
usb->cmd_error = urb->status;
+
+ if (!usb->cmd_error &&
+ urb->actual_length != urb->transfer_buffer_length)
+ usb->cmd_error = -EIO;
}
static int zd_submit_waiting_urb(struct zd_usb *usb, bool last)
usb_fill_int_urb(urb, udev, usb_sndintpipe(udev, EP_REGS_OUT),
req, req_len, iowrite16v_urb_complete, usb,
ep->desc.bInterval);
- urb->transfer_flags |= URB_FREE_BUFFER | URB_SHORT_NOT_OK;
+ urb->transfer_flags |= URB_FREE_BUFFER;
/* Submit previous URB */
r = zd_submit_waiting_urb(usb, false);
spinlock_t lock;
struct mutex setup_mutex;
struct delayed_work idle_work;
+ struct tasklet_struct reset_timer_tasklet;
u8 fragment[2 * USB_MAX_RX_SIZE];
unsigned int fragment_length;
unsigned int usb_packet_size;
depends on HOTPLUG
default y
-select NLS if (DMI || ACPI)
+config PCI_LABEL
+ def_bool y if (DMI || ACPI)
+ select NLS
# ACPI Related PCI FW Functions
# ACPI _DSM provided firmware instance and string name
#
-obj-$(CONFIG_ACPI) += pci-acpi.o pci-label.o
+obj-$(CONFIG_ACPI) += pci-acpi.o
# SMBIOS provided firmware instance and labels
-obj-$(CONFIG_DMI) += pci-label.o
+obj-$(CONFIG_PCI_LABEL) += pci-label.o
# Cardbus & CompactPCI use setup-bus
obj-$(CONFIG_HOTPLUG) += setup-bus.o
static struct iova_domain reserved_iova_list;
static struct lock_class_key reserved_rbtree_key;
-static void dmar_init_reserved_ranges(void)
+static int dmar_init_reserved_ranges(void)
{
struct pci_dev *pdev = NULL;
struct iova *iova;
/* IOAPIC ranges shouldn't be accessed by DMA */
iova = reserve_iova(&reserved_iova_list, IOVA_PFN(IOAPIC_RANGE_START),
IOVA_PFN(IOAPIC_RANGE_END));
- if (!iova)
+ if (!iova) {
printk(KERN_ERR "Reserve IOAPIC range failed\n");
+ return -ENODEV;
+ }
/* Reserve all PCI MMIO to avoid peer-to-peer access */
for_each_pci_dev(pdev) {
iova = reserve_iova(&reserved_iova_list,
IOVA_PFN(r->start),
IOVA_PFN(r->end));
- if (!iova)
+ if (!iova) {
printk(KERN_ERR "Reserve iova failed\n");
+ return -ENODEV;
+ }
}
}
-
+ return 0;
}
static void domain_reserve_special_ranges(struct dmar_domain *domain)
ret = iommu_attach_domain(domain, iommu);
if (ret) {
- domain_exit(domain);
+ free_domain_mem(domain);
goto error;
}
return 0;
}
-int __init init_dmars(void)
+static int __init init_dmars(int force_on)
{
struct dmar_drhd_unit *drhd;
struct dmar_rmrr_unit *rmrr;
* enable translation
*/
for_each_drhd_unit(drhd) {
- if (drhd->ignored)
+ if (drhd->ignored) {
+ /*
+ * we always have to disable PMRs or DMA may fail on
+ * this device
+ */
+ if (force_on)
+ iommu_disable_protect_mem_regions(drhd->iommu);
continue;
+ }
iommu = drhd->iommu;
iommu_flush_write_buffer(iommu);
if (!domain)
return 0;
- if (action == BUS_NOTIFY_UNBOUND_DRIVER && !iommu_pass_through)
+ if (action == BUS_NOTIFY_UNBOUND_DRIVER && !iommu_pass_through) {
domain_remove_one_dev_info(domain, pdev);
+ if (!(domain->flags & DOMAIN_FLAG_VIRTUAL_MACHINE) &&
+ !(domain->flags & DOMAIN_FLAG_STATIC_IDENTITY) &&
+ list_empty(&domain->devices))
+ domain_exit(domain);
+ }
+
return 0;
}
if (no_iommu || dmar_disabled)
return -ENODEV;
- iommu_init_mempool();
- dmar_init_reserved_ranges();
+ if (iommu_init_mempool()) {
+ if (force_on)
+ panic("tboot: Failed to initialize iommu memory\n");
+ return -ENODEV;
+ }
+
+ if (dmar_init_reserved_ranges()) {
+ if (force_on)
+ panic("tboot: Failed to reserve iommu ranges\n");
+ return -ENODEV;
+ }
init_no_remapping_devices();
- ret = init_dmars();
+ ret = init_dmars(force_on);
if (ret) {
if (force_on)
panic("tboot: Failed to initialize DMARs\n");
domain->iommu_count--;
domain_update_iommu_cap(domain);
spin_unlock_irqrestore(&domain->iommu_lock, tmp_flags);
+
+ spin_lock_irqsave(&iommu->lock, tmp_flags);
+ clear_bit(domain->id, iommu->domain_ids);
+ iommu->domains[domain->id] = NULL;
+ spin_unlock_irqrestore(&iommu->lock, tmp_flags);
}
spin_unlock_irqrestore(&device_domain_lock, flags);
pte = dmar_domain->pgd;
if (dma_pte_present(pte)) {
- free_pgtable_page(dmar_domain->pgd);
dmar_domain->pgd = (struct dma_pte *)
phys_to_virt(dma_pte_addr(pte));
+ free_pgtable_page(pte);
}
dmar_domain->agaw--;
}
#endif /* !CONFIG_SUSPEND */
-#ifdef CONFIG_HIBERNATION
+#ifdef CONFIG_HIBERNATE_CALLBACKS
static int pci_pm_freeze(struct device *dev)
{
return error;
}
-#else /* !CONFIG_HIBERNATION */
+#else /* !CONFIG_HIBERNATE_CALLBACKS */
#define pci_pm_freeze NULL
#define pci_pm_freeze_noirq NULL
#define pci_pm_restore NULL
#define pci_pm_restore_noirq NULL
-#endif /* !CONFIG_HIBERNATION */
+#endif /* !CONFIG_HIBERNATE_CALLBACKS */
#ifdef CONFIG_PM_RUNTIME
min_align = align1 >> 1;
align += aligns[order];
}
- size0 = calculate_memsize(size, min_size, 0, resource_size(b_res), align);
+ size0 = calculate_memsize(size, min_size, 0, resource_size(b_res), min_align);
size1 = !add_size ? size :
calculate_memsize(size, min_size+add_size, 0,
- resource_size(b_res), align);
+ resource_size(b_res), min_align);
if (!size0 && !size1) {
if (b_res->start || b_res->end)
dev_info(&bus->self->dev, "disabling bridge window "
#include <mach/balloon3.h>
+#include <asm/mach-types.h>
+
#include "soc_common.h"
/*
{
int ret;
+ if (!machine_is_balloon3())
+ return -ENODEV;
+
balloon3_pcmcia_device = platform_device_alloc("pxa2xx-pcmcia", -1);
if (!balloon3_pcmcia_device)
return -ENOMEM;
for (i = 0; i < ARRAY_SIZE(irqs); i++) {
if (irqs[i].sock != skt->nr)
continue;
- if (gpio_request(IRQ_TO_GPIO(irqs[i].irq), irqs[i].str) < 0) {
+ if (gpio_request(irq_to_gpio(irqs[i].irq), irqs[i].str) < 0) {
pr_err("%s: sock %d unable to request gpio %d\n",
- __func__, skt->nr, IRQ_TO_GPIO(irqs[i].irq));
+ __func__, skt->nr, irq_to_gpio(irqs[i].irq));
ret = -EBUSY;
goto error;
}
- if (gpio_direction_input(IRQ_TO_GPIO(irqs[i].irq)) < 0) {
+ if (gpio_direction_input(irq_to_gpio(irqs[i].irq)) < 0) {
pr_err("%s: sock %d unable to set input gpio %d\n",
- __func__, skt->nr, IRQ_TO_GPIO(irqs[i].irq));
+ __func__, skt->nr, irq_to_gpio(irqs[i].irq));
ret = -EINVAL;
goto error;
}
error:
for (; i >= 0; i--) {
- gpio_free(IRQ_TO_GPIO(irqs[i].irq));
+ gpio_free(irq_to_gpio(irqs[i].irq));
}
return (ret);
}
/* free allocated gpio's */
gpio_free(GPIO_PRDY);
for (i = 0; i < ARRAY_SIZE(irqs); i++)
- gpio_free(IRQ_TO_GPIO(irqs[i].irq));
+ gpio_free(irq_to_gpio(irqs[i].irq));
}
static unsigned long trizeps_pcmcia_status[2];
{
int ret;
+ if (!machine_is_trizeps4() && !machine_is_trizeps4wl())
+ return -ENODEV;
+
trizeps_pcmcia_device = platform_device_alloc("pxa2xx-pcmcia", -1);
if (!trizeps_pcmcia_device)
return -ENOMEM;
depends on ACPI
depends on BACKLIGHT_CLASS_DEVICE
depends on RFKILL
- depends on SERIO_I8042
+ depends on INPUT && SERIO_I8042
+ select INPUT_SPARSEKMAP
---help---
This is a driver for laptops built by MSI (MICRO-STAR
INTERNATIONAL):
#define ACERWMID_EVENT_GUID "676AA15E-6A47-4D9F-A2CC-1E6D18D14026"
MODULE_ALIAS("wmi:67C3371D-95A3-4C37-BB61-DD47B491DAAB");
-MODULE_ALIAS("wmi:6AF4F258-B401-42Fd-BE91-3D4AC2D7C0D3");
+MODULE_ALIAS("wmi:6AF4F258-B401-42FD-BE91-3D4AC2D7C0D3");
MODULE_ALIAS("wmi:676AA15E-6A47-4D9F-A2CC-1E6D18D14026");
enum acer_wmi_event_ids {
if (!asus->inputdev)
return -ENOMEM;
- asus->inputdev->name = asus->driver->input_phys;
- asus->inputdev->phys = asus->driver->input_name;
+ asus->inputdev->name = asus->driver->input_name;
+ asus->inputdev->phys = asus->driver->input_phys;
asus->inputdev->id.bustype = BUS_HOST;
asus->inputdev->dev.parent = &asus->platform_device->dev;
{ KE_KEY, 0x82, { KEY_CAMERA } },
{ KE_KEY, 0x83, { KEY_CAMERA_ZOOMIN } },
{ KE_KEY, 0x88, { KEY_WLAN } },
+ { KE_KEY, 0xbd, { KEY_CAMERA } },
{ KE_KEY, 0xcc, { KEY_SWITCHVIDEOMODE } },
{ KE_KEY, 0xe0, { KEY_PROG1 } }, /* Task Manager */
{ KE_KEY, 0xe1, { KEY_F14 } }, /* Change Resolution */
+ { KE_KEY, 0xe8, { KEY_SCREENLOCK } },
{ KE_KEY, 0xe9, { KEY_BRIGHTNESS_ZERO } },
{ KE_KEY, 0xeb, { KEY_CAMERA_ZOOMOUT } },
{ KE_KEY, 0xec, { KEY_CAMERA_UP } },
u32 trigger_type;
};
+static void pmic_program_irqtype(int gpio, int type)
+{
+ if (type & IRQ_TYPE_EDGE_RISING)
+ intel_scu_ipc_update_register(GPIO0 + gpio, 0x20, 0x20);
+ else
+ intel_scu_ipc_update_register(GPIO0 + gpio, 0x00, 0x20);
+
+ if (type & IRQ_TYPE_EDGE_FALLING)
+ intel_scu_ipc_update_register(GPIO0 + gpio, 0x10, 0x10);
+ else
+ intel_scu_ipc_update_register(GPIO0 + gpio, 0x00, 0x10);
+};
+
static int pmic_gpio_direction_input(struct gpio_chip *chip, unsigned offset)
{
if (offset > 8) {
return pg->irq_base + offset;
}
+static void pmic_bus_lock(struct irq_data *data)
+{
+ struct pmic_gpio *pg = irq_data_get_irq_chip_data(data);
+
+ mutex_lock(&pg->buslock);
+}
+
+static void pmic_bus_sync_unlock(struct irq_data *data)
+{
+ struct pmic_gpio *pg = irq_data_get_irq_chip_data(data);
+
+ if (pg->update_type) {
+ unsigned int gpio = pg->update_type & ~GPIO_UPDATE_TYPE;
+
+ pmic_program_irqtype(gpio, pg->trigger_type);
+ pg->update_type = 0;
+ }
+ mutex_unlock(&pg->buslock);
+}
+
/* the gpiointr register is read-clear, so just do nothing. */
static void pmic_irq_unmask(struct irq_data *data) { }
static void pmic_irq_mask(struct irq_data *data) { }
static struct irq_chip pmic_irqchip = {
- .name = "PMIC-GPIO",
- .irq_mask = pmic_irq_mask,
- .irq_unmask = pmic_irq_unmask,
- .irq_set_type = pmic_irq_type,
+ .name = "PMIC-GPIO",
+ .irq_mask = pmic_irq_mask,
+ .irq_unmask = pmic_irq_unmask,
+ .irq_set_type = pmic_irq_type,
+ .irq_bus_lock = pmic_bus_lock,
+ .irq_bus_sync_unlock = pmic_bus_sync_unlock,
};
static irqreturn_t pmic_irq_handler(int irq, void *data)
},
.callback = dmi_check_cb,
},
+ {
+ .ident = "R410 Plus",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR,
+ "SAMSUNG ELECTRONICS CO., LTD."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "R410P"),
+ DMI_MATCH(DMI_BOARD_NAME, "R460"),
+ },
+ .callback = dmi_check_cb,
+ },
{
.ident = "R518",
.matches = {
.callback = dmi_check_cb,
},
{
- .ident = "N150/N210/N220",
+ .ident = "N150/N210/N220/N230",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR,
"SAMSUNG ELECTRONICS CO., LTD."),
- DMI_MATCH(DMI_PRODUCT_NAME, "N150/N210/N220"),
- DMI_MATCH(DMI_BOARD_NAME, "N150/N210/N220"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "N150/N210/N220/N230"),
+ DMI_MATCH(DMI_BOARD_NAME, "N150/N210/N220/N230"),
},
.callback = dmi_check_cb,
},
/* create a backlight device to talk to this one */
memset(&props, 0, sizeof(struct backlight_properties));
+ props.type = BACKLIGHT_PLATFORM;
props.max_brightness = sabi_config->max_brightness;
backlight_device = backlight_device_register("samsung", &sdev->dev,
NULL, &backlight_ops,
"1 for 30 seconds, 2 for 60 seconds and 3 to disable timeout "
"(default: 0)");
+static void sony_nc_kbd_backlight_resume(void);
+
enum sony_nc_rfkill {
SONY_WIFI,
SONY_BLUETOOTH,
if (!handles)
return -ENOMEM;
- sysfs_attr_init(&handles->devattr.attr);
- handles->devattr.attr.name = "handles";
- handles->devattr.attr.mode = S_IRUGO;
- handles->devattr.show = sony_nc_handles_show;
-
for (i = 0; i < ARRAY_SIZE(handles->cap); i++) {
if (!acpi_callsetfunc(sony_nc_acpi_handle,
"SN00", i + 0x20, &result)) {
}
}
- /* allow reading capabilities via sysfs */
- if (device_create_file(&pd->dev, &handles->devattr)) {
- kfree(handles);
- handles = NULL;
- return -1;
+ if (debug) {
+ sysfs_attr_init(&handles->devattr.attr);
+ handles->devattr.attr.name = "handles";
+ handles->devattr.attr.mode = S_IRUGO;
+ handles->devattr.show = sony_nc_handles_show;
+
+ /* allow reading capabilities via sysfs */
+ if (device_create_file(&pd->dev, &handles->devattr)) {
+ kfree(handles);
+ handles = NULL;
+ return -1;
+ }
}
return 0;
static int sony_nc_handles_cleanup(struct platform_device *pd)
{
if (handles) {
- device_remove_file(&pd->dev, &handles->devattr);
+ if (debug)
+ device_remove_file(&pd->dev, &handles->devattr);
kfree(handles);
handles = NULL;
}
static int sony_find_snc_handle(int handle)
{
int i;
+
+ /* not initialized yet, return early */
+ if (!handles)
+ return -1;
+
for (i = 0; i < 0x10; i++) {
if (handles->cap[i] == handle) {
dprintk("found handle 0x%.4x (offset: 0x%.2x)\n",
/* re-read rfkill state */
sony_nc_rfkill_update();
+ /* restore kbd backlight states */
+ sony_nc_kbd_backlight_resume();
+
return 0;
}
#define KBDBL_HANDLER 0x137
#define KBDBL_PRESENT 0xB00
#define SET_MODE 0xC00
+#define SET_STATE 0xD00
#define SET_TIMEOUT 0xE00
struct kbd_backlight {
(value << 0x10) | SET_MODE, &result))
return -EIO;
+ /* Try to turn the light on/off immediately */
+ sony_call_snc_handle(KBDBL_HANDLER, (value << 0x10) | SET_STATE,
+ &result);
+
kbdbl_handle->mode = value;
return 0;
{
int result;
- if (sony_call_snc_handle(0x137, KBDBL_PRESENT, &result))
+ if (sony_call_snc_handle(KBDBL_HANDLER, KBDBL_PRESENT, &result))
return 0;
if (!(result & 0x02))
return 0;
static int sony_nc_kbd_backlight_cleanup(struct platform_device *pd)
{
if (kbdbl_handle) {
+ int result;
+
device_remove_file(&pd->dev, &kbdbl_handle->mode_attr);
device_remove_file(&pd->dev, &kbdbl_handle->timeout_attr);
+
+ /* restore the default hw behaviour */
+ sony_call_snc_handle(KBDBL_HANDLER, 0x1000 | SET_MODE, &result);
+ sony_call_snc_handle(KBDBL_HANDLER, SET_TIMEOUT, &result);
+
kfree(kbdbl_handle);
}
return 0;
}
+static void sony_nc_kbd_backlight_resume(void)
+{
+ int ignore = 0;
+
+ if (!kbdbl_handle)
+ return;
+
+ if (kbdbl_handle->mode == 0)
+ sony_call_snc_handle(KBDBL_HANDLER, SET_MODE, &ignore);
+
+ if (kbdbl_handle->timeout != 0)
+ sony_call_snc_handle(KBDBL_HANDLER,
+ (kbdbl_handle->timeout << 0x10) | SET_TIMEOUT,
+ &ignore);
+}
+
static void sony_nc_backlight_setup(void)
{
acpi_handle unused;
tpacpi_is_fw_digit(s[1]) &&
s[2] == t && s[3] == 'T' &&
tpacpi_is_fw_digit(s[4]) &&
- tpacpi_is_fw_digit(s[5]) &&
- s[6] == 'W' && s[7] == 'W';
+ tpacpi_is_fw_digit(s[5]);
}
/* returns 0 - probe ok, or < 0 - probe error.
__setup("riohdid=", rio_hdid_setup);
-void rio_register_mport(struct rio_mport *port)
+int rio_register_mport(struct rio_mport *port)
{
if (next_portid >= RIO_MAX_MPORTS) {
pr_err("RIO: reached specified max number of mports\n");
- return;
+ return 1;
}
port->id = next_portid++;
port->host_deviceid = rio_get_hdid(port->id);
list_add_tail(&port->node, &rio_mports);
+ return 0;
}
EXPORT_SYMBOL_GPL(rio_local_get_device_id);
DECLARE_RIO_SWITCH_INIT(RIO_VID_IDT, RIO_DID_IDTCPS1616, idtg2_switch_init);
DECLARE_RIO_SWITCH_INIT(RIO_VID_IDT, RIO_DID_IDTVPS1616, idtg2_switch_init);
DECLARE_RIO_SWITCH_INIT(RIO_VID_IDT, RIO_DID_IDTSPS1616, idtg2_switch_init);
+DECLARE_RIO_SWITCH_INIT(RIO_VID_IDT, RIO_DID_IDTCPS1432, idtg2_switch_init);
err = __rtc_read_alarm(rtc, &alrm);
if (!err && !rtc_valid_tm(&alrm.time))
- rtc_set_alarm(rtc, &alrm);
+ rtc_initialize_alarm(rtc, &alrm);
strlcpy(rtc->name, name, RTC_DEVICE_NAME_SIZE);
dev_set_name(&rtc->dev, "rtc%d", id);
}
EXPORT_SYMBOL_GPL(rtc_set_alarm);
+/* Called once per device from rtc_device_register */
+int rtc_initialize_alarm(struct rtc_device *rtc, struct rtc_wkalrm *alarm)
+{
+ int err;
+
+ err = rtc_valid_tm(&alarm->time);
+ if (err != 0)
+ return err;
+
+ err = mutex_lock_interruptible(&rtc->ops_lock);
+ if (err)
+ return err;
+
+ rtc->aie_timer.node.expires = rtc_tm_to_ktime(alarm->time);
+ rtc->aie_timer.period = ktime_set(0, 0);
+ if (alarm->enabled) {
+ rtc->aie_timer.enabled = 1;
+ timerqueue_add(&rtc->timerqueue, &rtc->aie_timer.node);
+ }
+ mutex_unlock(&rtc->ops_lock);
+ return err;
+}
+EXPORT_SYMBOL_GPL(rtc_initialize_alarm);
+
+
+
int rtc_alarm_irq_enable(struct rtc_device *rtc, unsigned int enabled)
{
int err = mutex_lock_interruptible(&rtc->ops_lock);
bfin_rtc_int_set_alarm(rtc);
else
bfin_rtc_int_clear(~(RTC_ISTAT_ALARM | RTC_ISTAT_ALARM_DAY));
+
+ return 0;
}
static int bfin_rtc_read_time(struct device *dev, struct rtc_time *tm)
}, {
.name = "mc13892-rtc",
},
+ { }
};
static struct platform_driver mc13xxx_rtc_driver = {
return 0;
fail2:
- free_irq(omap_rtc_timer, NULL);
+ free_irq(omap_rtc_timer, rtc);
fail1:
rtc_device_unregister(rtc);
fail0:
/* do not clear AIE here, it may be needed for wake */
- s3c_rtc_setpie(dev, 0);
free_irq(s3c_rtc_alarmno, rtc_dev);
free_irq(s3c_rtc_tickno, rtc_dev);
}
platform_set_drvdata(dev, NULL);
rtc_device_unregister(rtc);
- s3c_rtc_setpie(&dev->dev, 0);
s3c_rtc_setaie(&dev->dev, 0);
clk_disable(rtc_clk);
list_splice_init(&shost->starved_list, &starved_list);
while (!list_empty(&starved_list)) {
- int flagset;
-
/*
* As long as shost is accepting commands and we have
* starved queues, call blk_run_queue. scsi_request_fn
continue;
}
- spin_unlock(shost->host_lock);
-
- spin_lock(sdev->request_queue->queue_lock);
- flagset = test_bit(QUEUE_FLAG_REENTER, &q->queue_flags) &&
- !test_bit(QUEUE_FLAG_REENTER,
- &sdev->request_queue->queue_flags);
- if (flagset)
- queue_flag_set(QUEUE_FLAG_REENTER, sdev->request_queue);
- __blk_run_queue(sdev->request_queue, false);
- if (flagset)
- queue_flag_clear(QUEUE_FLAG_REENTER, sdev->request_queue);
- spin_unlock(sdev->request_queue->queue_lock);
-
- spin_lock(shost->host_lock);
+ blk_run_queue_async(sdev->request_queue);
}
/* put any unprocessed entries back */
list_splice(&starved_list, &shost->starved_list);
static void
fc_bsg_goose_queue(struct fc_rport *rport)
{
- int flagset;
- unsigned long flags;
-
if (!rport->rqst_q)
return;
+ /*
+ * This get/put dance makes no sense
+ */
get_device(&rport->dev);
-
- spin_lock_irqsave(rport->rqst_q->queue_lock, flags);
- flagset = test_bit(QUEUE_FLAG_REENTER, &rport->rqst_q->queue_flags) &&
- !test_bit(QUEUE_FLAG_REENTER, &rport->rqst_q->queue_flags);
- if (flagset)
- queue_flag_set(QUEUE_FLAG_REENTER, rport->rqst_q);
- __blk_run_queue(rport->rqst_q, false);
- if (flagset)
- queue_flag_clear(QUEUE_FLAG_REENTER, rport->rqst_q);
- spin_unlock_irqrestore(rport->rqst_q->queue_lock, flags);
-
+ blk_run_queue_async(rport->rqst_q);
put_device(&rport->dev);
}
-
/**
* fc_bsg_rport_dispatch - process rport bsg requests and dispatch to LLDD
* @q: rport request queue
* A wait_queue on the pl022->busy could be used, but then the common
* execution path (pump_messages) would be required to call wake_up or
* friends on every SPI message. Do this instead */
- while (!list_empty(&pl022->queue) && pl022->busy && limit--) {
+ while ((!list_empty(&pl022->queue) || pl022->busy) && limit--) {
spin_unlock_irqrestore(&pl022->queue_lock, flags);
msleep(10);
spin_lock_irqsave(&pl022->queue_lock, flags);
spin_lock_irqsave(&dws->lock, flags);
dws->run = QUEUE_STOPPED;
- while (!list_empty(&dws->queue) && dws->busy && limit--) {
+ while ((!list_empty(&dws->queue) || dws->busy) && limit--) {
spin_unlock_irqrestore(&dws->lock, flags);
msleep(10);
spin_lock_irqsave(&dws->lock, flags);
* execution path (pump_messages) would be required to call wake_up or
* friends on every SPI message. Do this instead */
drv_data->run = QUEUE_STOPPED;
- while (!list_empty(&drv_data->queue) && drv_data->busy && limit--) {
+ while ((!list_empty(&drv_data->queue) || drv_data->busy) && limit--) {
spin_unlock_irqrestore(&drv_data->lock, flags);
msleep(10);
spin_lock_irqsave(&drv_data->lock, flags);
* friends on every SPI message. Do this instead
*/
drv_data->running = false;
- while (!list_empty(&drv_data->queue) && drv_data->busy && limit--) {
+ while ((!list_empty(&drv_data->queue) || drv_data->busy) && limit--) {
spin_unlock_irqrestore(&drv_data->lock, flags);
msleep(10);
spin_lock_irqsave(&drv_data->lock, flags);
source "drivers/staging/wlags49_h25/Kconfig"
-source "drivers/staging/samsung-laptop/Kconfig"
-
source "drivers/staging/sm7xx/Kconfig"
source "drivers/staging/dt3155v4l/Kconfig"
obj-$(CONFIG_ZCACHE) += zcache/
obj-$(CONFIG_WLAGS49_H2) += wlags49_h2/
obj-$(CONFIG_WLAGS49_H25) += wlags49_h25/
-obj-$(CONFIG_SAMSUNG_LAPTOP) += samsung-laptop/
obj-$(CONFIG_FB_SM7XX) += sm7xx/
obj-$(CONFIG_VIDEO_DT3155) += dt3155v4l/
obj-$(CONFIG_CRYSTALHD) += crystalhd/
+++ /dev/null
-config SAMSUNG_LAPTOP
- tristate "Samsung Laptop driver"
- default n
- depends on RFKILL && BACKLIGHT_CLASS_DEVICE && X86
- help
- This module implements a driver for the N128 Samsung Laptop
- providing control over the Wireless LED and the LCD backlight
-
- To compile this driver as a module, choose
- M here: the module will be called samsung-laptop.
+++ /dev/null
-obj-$(CONFIG_SAMSUNG_LAPTOP) += samsung-laptop.o
+++ /dev/null
-TODO:
- - review from other developers
- - figure out ACPI video issues
-
-Please send patches to Greg Kroah-Hartman <gregkh@suse.de>
+++ /dev/null
-/*
- * Samsung Laptop driver
- *
- * Copyright (C) 2009,2011 Greg Kroah-Hartman (gregkh@suse.de)
- * Copyright (C) 2009,2011 Novell Inc.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
- *
- */
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/delay.h>
-#include <linux/pci.h>
-#include <linux/backlight.h>
-#include <linux/fb.h>
-#include <linux/dmi.h>
-#include <linux/platform_device.h>
-#include <linux/rfkill.h>
-
-/*
- * This driver is needed because a number of Samsung laptops do not hook
- * their control settings through ACPI. So we have to poke around in the
- * BIOS to do things like brightness values, and "special" key controls.
- */
-
-/*
- * We have 0 - 8 as valid brightness levels. The specs say that level 0 should
- * be reserved by the BIOS (which really doesn't make much sense), we tell
- * userspace that the value is 0 - 7 and then just tell the hardware 1 - 8
- */
-#define MAX_BRIGHT 0x07
-
-
-#define SABI_IFACE_MAIN 0x00
-#define SABI_IFACE_SUB 0x02
-#define SABI_IFACE_COMPLETE 0x04
-#define SABI_IFACE_DATA 0x05
-
-/* Structure to get data back to the calling function */
-struct sabi_retval {
- u8 retval[20];
-};
-
-struct sabi_header_offsets {
- u8 port;
- u8 re_mem;
- u8 iface_func;
- u8 en_mem;
- u8 data_offset;
- u8 data_segment;
-};
-
-struct sabi_commands {
- /*
- * Brightness is 0 - 8, as described above.
- * Value 0 is for the BIOS to use
- */
- u8 get_brightness;
- u8 set_brightness;
-
- /*
- * first byte:
- * 0x00 - wireless is off
- * 0x01 - wireless is on
- * second byte:
- * 0x02 - 3G is off
- * 0x03 - 3G is on
- * TODO, verify 3G is correct, that doesn't seem right...
- */
- u8 get_wireless_button;
- u8 set_wireless_button;
-
- /* 0 is off, 1 is on */
- u8 get_backlight;
- u8 set_backlight;
-
- /*
- * 0x80 or 0x00 - no action
- * 0x81 - recovery key pressed
- */
- u8 get_recovery_mode;
- u8 set_recovery_mode;
-
- /*
- * on seclinux: 0 is low, 1 is high,
- * on swsmi: 0 is normal, 1 is silent, 2 is turbo
- */
- u8 get_performance_level;
- u8 set_performance_level;
-
- /*
- * Tell the BIOS that Linux is running on this machine.
- * 81 is on, 80 is off
- */
- u8 set_linux;
-};
-
-struct sabi_performance_level {
- const char *name;
- u8 value;
-};
-
-struct sabi_config {
- const char *test_string;
- u16 main_function;
- const struct sabi_header_offsets header_offsets;
- const struct sabi_commands commands;
- const struct sabi_performance_level performance_levels[4];
- u8 min_brightness;
- u8 max_brightness;
-};
-
-static const struct sabi_config sabi_configs[] = {
- {
- .test_string = "SECLINUX",
-
- .main_function = 0x4c49,
-
- .header_offsets = {
- .port = 0x00,
- .re_mem = 0x02,
- .iface_func = 0x03,
- .en_mem = 0x04,
- .data_offset = 0x05,
- .data_segment = 0x07,
- },
-
- .commands = {
- .get_brightness = 0x00,
- .set_brightness = 0x01,
-
- .get_wireless_button = 0x02,
- .set_wireless_button = 0x03,
-
- .get_backlight = 0x04,
- .set_backlight = 0x05,
-
- .get_recovery_mode = 0x06,
- .set_recovery_mode = 0x07,
-
- .get_performance_level = 0x08,
- .set_performance_level = 0x09,
-
- .set_linux = 0x0a,
- },
-
- .performance_levels = {
- {
- .name = "silent",
- .value = 0,
- },
- {
- .name = "normal",
- .value = 1,
- },
- { },
- },
- .min_brightness = 1,
- .max_brightness = 8,
- },
- {
- .test_string = "SwSmi@",
-
- .main_function = 0x5843,
-
- .header_offsets = {
- .port = 0x00,
- .re_mem = 0x04,
- .iface_func = 0x02,
- .en_mem = 0x03,
- .data_offset = 0x05,
- .data_segment = 0x07,
- },
-
- .commands = {
- .get_brightness = 0x10,
- .set_brightness = 0x11,
-
- .get_wireless_button = 0x12,
- .set_wireless_button = 0x13,
-
- .get_backlight = 0x2d,
- .set_backlight = 0x2e,
-
- .get_recovery_mode = 0xff,
- .set_recovery_mode = 0xff,
-
- .get_performance_level = 0x31,
- .set_performance_level = 0x32,
-
- .set_linux = 0xff,
- },
-
- .performance_levels = {
- {
- .name = "normal",
- .value = 0,
- },
- {
- .name = "silent",
- .value = 1,
- },
- {
- .name = "overclock",
- .value = 2,
- },
- { },
- },
- .min_brightness = 0,
- .max_brightness = 8,
- },
- { },
-};
-
-static const struct sabi_config *sabi_config;
-
-static void __iomem *sabi;
-static void __iomem *sabi_iface;
-static void __iomem *f0000_segment;
-static struct backlight_device *backlight_device;
-static struct mutex sabi_mutex;
-static struct platform_device *sdev;
-static struct rfkill *rfk;
-
-static int force;
-module_param(force, bool, 0);
-MODULE_PARM_DESC(force,
- "Disable the DMI check and forces the driver to be loaded");
-
-static int debug;
-module_param(debug, bool, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(debug, "Debug enabled or not");
-
-static int sabi_get_command(u8 command, struct sabi_retval *sretval)
-{
- int retval = 0;
- u16 port = readw(sabi + sabi_config->header_offsets.port);
- u8 complete, iface_data;
-
- mutex_lock(&sabi_mutex);
-
- /* enable memory to be able to write to it */
- outb(readb(sabi + sabi_config->header_offsets.en_mem), port);
-
- /* write out the command */
- writew(sabi_config->main_function, sabi_iface + SABI_IFACE_MAIN);
- writew(command, sabi_iface + SABI_IFACE_SUB);
- writeb(0, sabi_iface + SABI_IFACE_COMPLETE);
- outb(readb(sabi + sabi_config->header_offsets.iface_func), port);
-
- /* write protect memory to make it safe */
- outb(readb(sabi + sabi_config->header_offsets.re_mem), port);
-
- /* see if the command actually succeeded */
- complete = readb(sabi_iface + SABI_IFACE_COMPLETE);
- iface_data = readb(sabi_iface + SABI_IFACE_DATA);
- if (complete != 0xaa || iface_data == 0xff) {
- pr_warn("SABI get command 0x%02x failed with completion flag 0x%02x and data 0x%02x\n",
- command, complete, iface_data);
- retval = -EINVAL;
- goto exit;
- }
- /*
- * Save off the data into a structure so the caller use it.
- * Right now we only want the first 4 bytes,
- * There are commands that need more, but not for the ones we
- * currently care about.
- */
- sretval->retval[0] = readb(sabi_iface + SABI_IFACE_DATA);
- sretval->retval[1] = readb(sabi_iface + SABI_IFACE_DATA + 1);
- sretval->retval[2] = readb(sabi_iface + SABI_IFACE_DATA + 2);
- sretval->retval[3] = readb(sabi_iface + SABI_IFACE_DATA + 3);
-
-exit:
- mutex_unlock(&sabi_mutex);
- return retval;
-
-}
-
-static int sabi_set_command(u8 command, u8 data)
-{
- int retval = 0;
- u16 port = readw(sabi + sabi_config->header_offsets.port);
- u8 complete, iface_data;
-
- mutex_lock(&sabi_mutex);
-
- /* enable memory to be able to write to it */
- outb(readb(sabi + sabi_config->header_offsets.en_mem), port);
-
- /* write out the command */
- writew(sabi_config->main_function, sabi_iface + SABI_IFACE_MAIN);
- writew(command, sabi_iface + SABI_IFACE_SUB);
- writeb(0, sabi_iface + SABI_IFACE_COMPLETE);
- writeb(data, sabi_iface + SABI_IFACE_DATA);
- outb(readb(sabi + sabi_config->header_offsets.iface_func), port);
-
- /* write protect memory to make it safe */
- outb(readb(sabi + sabi_config->header_offsets.re_mem), port);
-
- /* see if the command actually succeeded */
- complete = readb(sabi_iface + SABI_IFACE_COMPLETE);
- iface_data = readb(sabi_iface + SABI_IFACE_DATA);
- if (complete != 0xaa || iface_data == 0xff) {
- pr_warn("SABI set command 0x%02x failed with completion flag 0x%02x and data 0x%02x\n",
- command, complete, iface_data);
- retval = -EINVAL;
- }
-
- mutex_unlock(&sabi_mutex);
- return retval;
-}
-
-static void test_backlight(void)
-{
- struct sabi_retval sretval;
-
- sabi_get_command(sabi_config->commands.get_backlight, &sretval);
- printk(KERN_DEBUG "backlight = 0x%02x\n", sretval.retval[0]);
-
- sabi_set_command(sabi_config->commands.set_backlight, 0);
- printk(KERN_DEBUG "backlight should be off\n");
-
- sabi_get_command(sabi_config->commands.get_backlight, &sretval);
- printk(KERN_DEBUG "backlight = 0x%02x\n", sretval.retval[0]);
-
- msleep(1000);
-
- sabi_set_command(sabi_config->commands.set_backlight, 1);
- printk(KERN_DEBUG "backlight should be on\n");
-
- sabi_get_command(sabi_config->commands.get_backlight, &sretval);
- printk(KERN_DEBUG "backlight = 0x%02x\n", sretval.retval[0]);
-}
-
-static void test_wireless(void)
-{
- struct sabi_retval sretval;
-
- sabi_get_command(sabi_config->commands.get_wireless_button, &sretval);
- printk(KERN_DEBUG "wireless led = 0x%02x\n", sretval.retval[0]);
-
- sabi_set_command(sabi_config->commands.set_wireless_button, 0);
- printk(KERN_DEBUG "wireless led should be off\n");
-
- sabi_get_command(sabi_config->commands.get_wireless_button, &sretval);
- printk(KERN_DEBUG "wireless led = 0x%02x\n", sretval.retval[0]);
-
- msleep(1000);
-
- sabi_set_command(sabi_config->commands.set_wireless_button, 1);
- printk(KERN_DEBUG "wireless led should be on\n");
-
- sabi_get_command(sabi_config->commands.get_wireless_button, &sretval);
- printk(KERN_DEBUG "wireless led = 0x%02x\n", sretval.retval[0]);
-}
-
-static u8 read_brightness(void)
-{
- struct sabi_retval sretval;
- int user_brightness = 0;
- int retval;
-
- retval = sabi_get_command(sabi_config->commands.get_brightness,
- &sretval);
- if (!retval) {
- user_brightness = sretval.retval[0];
- if (user_brightness != 0)
- user_brightness -= sabi_config->min_brightness;
- }
- return user_brightness;
-}
-
-static void set_brightness(u8 user_brightness)
-{
- u8 user_level = user_brightness - sabi_config->min_brightness;
-
- sabi_set_command(sabi_config->commands.set_brightness, user_level);
-}
-
-static int get_brightness(struct backlight_device *bd)
-{
- return (int)read_brightness();
-}
-
-static int update_status(struct backlight_device *bd)
-{
- set_brightness(bd->props.brightness);
-
- if (bd->props.power == FB_BLANK_UNBLANK)
- sabi_set_command(sabi_config->commands.set_backlight, 1);
- else
- sabi_set_command(sabi_config->commands.set_backlight, 0);
- return 0;
-}
-
-static const struct backlight_ops backlight_ops = {
- .get_brightness = get_brightness,
- .update_status = update_status,
-};
-
-static int rfkill_set(void *data, bool blocked)
-{
- /* Do something with blocked...*/
- /*
- * blocked == false is on
- * blocked == true is off
- */
- if (blocked)
- sabi_set_command(sabi_config->commands.set_wireless_button, 0);
- else
- sabi_set_command(sabi_config->commands.set_wireless_button, 1);
-
- return 0;
-}
-
-static struct rfkill_ops rfkill_ops = {
- .set_block = rfkill_set,
-};
-
-static int init_wireless(struct platform_device *sdev)
-{
- int retval;
-
- rfk = rfkill_alloc("samsung-wifi", &sdev->dev, RFKILL_TYPE_WLAN,
- &rfkill_ops, NULL);
- if (!rfk)
- return -ENOMEM;
-
- retval = rfkill_register(rfk);
- if (retval) {
- rfkill_destroy(rfk);
- return -ENODEV;
- }
-
- return 0;
-}
-
-static void destroy_wireless(void)
-{
- rfkill_unregister(rfk);
- rfkill_destroy(rfk);
-}
-
-static ssize_t get_performance_level(struct device *dev,
- struct device_attribute *attr, char *buf)
-{
- struct sabi_retval sretval;
- int retval;
- int i;
-
- /* Read the state */
- retval = sabi_get_command(sabi_config->commands.get_performance_level,
- &sretval);
- if (retval)
- return retval;
-
- /* The logic is backwards, yeah, lots of fun... */
- for (i = 0; sabi_config->performance_levels[i].name; ++i) {
- if (sretval.retval[0] == sabi_config->performance_levels[i].value)
- return sprintf(buf, "%s\n", sabi_config->performance_levels[i].name);
- }
- return sprintf(buf, "%s\n", "unknown");
-}
-
-static ssize_t set_performance_level(struct device *dev,
- struct device_attribute *attr, const char *buf,
- size_t count)
-{
- if (count >= 1) {
- int i;
- for (i = 0; sabi_config->performance_levels[i].name; ++i) {
- const struct sabi_performance_level *level =
- &sabi_config->performance_levels[i];
- if (!strncasecmp(level->name, buf, strlen(level->name))) {
- sabi_set_command(sabi_config->commands.set_performance_level,
- level->value);
- break;
- }
- }
- if (!sabi_config->performance_levels[i].name)
- return -EINVAL;
- }
- return count;
-}
-static DEVICE_ATTR(performance_level, S_IWUSR | S_IRUGO,
- get_performance_level, set_performance_level);
-
-
-static int __init dmi_check_cb(const struct dmi_system_id *id)
-{
- pr_info("found laptop model '%s'\n",
- id->ident);
- return 0;
-}
-
-static struct dmi_system_id __initdata samsung_dmi_table[] = {
- {
- .ident = "N128",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR,
- "SAMSUNG ELECTRONICS CO., LTD."),
- DMI_MATCH(DMI_PRODUCT_NAME, "N128"),
- DMI_MATCH(DMI_BOARD_NAME, "N128"),
- },
- .callback = dmi_check_cb,
- },
- {
- .ident = "N130",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR,
- "SAMSUNG ELECTRONICS CO., LTD."),
- DMI_MATCH(DMI_PRODUCT_NAME, "N130"),
- DMI_MATCH(DMI_BOARD_NAME, "N130"),
- },
- .callback = dmi_check_cb,
- },
- {
- .ident = "X125",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR,
- "SAMSUNG ELECTRONICS CO., LTD."),
- DMI_MATCH(DMI_PRODUCT_NAME, "X125"),
- DMI_MATCH(DMI_BOARD_NAME, "X125"),
- },
- .callback = dmi_check_cb,
- },
- {
- .ident = "X120/X170",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR,
- "SAMSUNG ELECTRONICS CO., LTD."),
- DMI_MATCH(DMI_PRODUCT_NAME, "X120/X170"),
- DMI_MATCH(DMI_BOARD_NAME, "X120/X170"),
- },
- .callback = dmi_check_cb,
- },
- {
- .ident = "NC10",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR,
- "SAMSUNG ELECTRONICS CO., LTD."),
- DMI_MATCH(DMI_PRODUCT_NAME, "NC10"),
- DMI_MATCH(DMI_BOARD_NAME, "NC10"),
- },
- .callback = dmi_check_cb,
- },
- {
- .ident = "NP-Q45",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR,
- "SAMSUNG ELECTRONICS CO., LTD."),
- DMI_MATCH(DMI_PRODUCT_NAME, "SQ45S70S"),
- DMI_MATCH(DMI_BOARD_NAME, "SQ45S70S"),
- },
- .callback = dmi_check_cb,
- },
- {
- .ident = "X360",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR,
- "SAMSUNG ELECTRONICS CO., LTD."),
- DMI_MATCH(DMI_PRODUCT_NAME, "X360"),
- DMI_MATCH(DMI_BOARD_NAME, "X360"),
- },
- .callback = dmi_check_cb,
- },
- {
- .ident = "R410 Plus",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR,
- "SAMSUNG ELECTRONICS CO., LTD."),
- DMI_MATCH(DMI_PRODUCT_NAME, "R410P"),
- DMI_MATCH(DMI_BOARD_NAME, "R460"),
- },
- .callback = dmi_check_cb,
- },
- {
- .ident = "R518",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR,
- "SAMSUNG ELECTRONICS CO., LTD."),
- DMI_MATCH(DMI_PRODUCT_NAME, "R518"),
- DMI_MATCH(DMI_BOARD_NAME, "R518"),
- },
- .callback = dmi_check_cb,
- },
- {
- .ident = "R519/R719",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR,
- "SAMSUNG ELECTRONICS CO., LTD."),
- DMI_MATCH(DMI_PRODUCT_NAME, "R519/R719"),
- DMI_MATCH(DMI_BOARD_NAME, "R519/R719"),
- },
- .callback = dmi_check_cb,
- },
- {
- .ident = "N150/N210/N220/N230",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR,
- "SAMSUNG ELECTRONICS CO., LTD."),
- DMI_MATCH(DMI_PRODUCT_NAME, "N150/N210/N220/N230"),
- DMI_MATCH(DMI_BOARD_NAME, "N150/N210/N220/N230"),
- },
- .callback = dmi_check_cb,
- },
- {
- .ident = "N150P/N210P/N220P",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR,
- "SAMSUNG ELECTRONICS CO., LTD."),
- DMI_MATCH(DMI_PRODUCT_NAME, "N150P/N210P/N220P"),
- DMI_MATCH(DMI_BOARD_NAME, "N150P/N210P/N220P"),
- },
- .callback = dmi_check_cb,
- },
- {
- .ident = "R530/R730",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
- DMI_MATCH(DMI_PRODUCT_NAME, "R530/R730"),
- DMI_MATCH(DMI_BOARD_NAME, "R530/R730"),
- },
- .callback = dmi_check_cb,
- },
- {
- .ident = "NF110/NF210/NF310",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
- DMI_MATCH(DMI_PRODUCT_NAME, "NF110/NF210/NF310"),
- DMI_MATCH(DMI_BOARD_NAME, "NF110/NF210/NF310"),
- },
- .callback = dmi_check_cb,
- },
- {
- .ident = "N145P/N250P/N260P",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
- DMI_MATCH(DMI_PRODUCT_NAME, "N145P/N250P/N260P"),
- DMI_MATCH(DMI_BOARD_NAME, "N145P/N250P/N260P"),
- },
- .callback = dmi_check_cb,
- },
- {
- .ident = "R70/R71",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR,
- "SAMSUNG ELECTRONICS CO., LTD."),
- DMI_MATCH(DMI_PRODUCT_NAME, "R70/R71"),
- DMI_MATCH(DMI_BOARD_NAME, "R70/R71"),
- },
- .callback = dmi_check_cb,
- },
- {
- .ident = "P460",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
- DMI_MATCH(DMI_PRODUCT_NAME, "P460"),
- DMI_MATCH(DMI_BOARD_NAME, "P460"),
- },
- .callback = dmi_check_cb,
- },
- { },
-};
-MODULE_DEVICE_TABLE(dmi, samsung_dmi_table);
-
-static int find_signature(void __iomem *memcheck, const char *testStr)
-{
- int i = 0;
- int loca;
-
- for (loca = 0; loca < 0xffff; loca++) {
- char temp = readb(memcheck + loca);
-
- if (temp == testStr[i]) {
- if (i == strlen(testStr)-1)
- break;
- ++i;
- } else {
- i = 0;
- }
- }
- return loca;
-}
-
-static int __init samsung_init(void)
-{
- struct backlight_properties props;
- struct sabi_retval sretval;
- unsigned int ifaceP;
- int i;
- int loca;
- int retval;
-
- mutex_init(&sabi_mutex);
-
- if (!force && !dmi_check_system(samsung_dmi_table))
- return -ENODEV;
-
- f0000_segment = ioremap_nocache(0xf0000, 0xffff);
- if (!f0000_segment) {
- pr_err("Can't map the segment at 0xf0000\n");
- return -EINVAL;
- }
-
- /* Try to find one of the signatures in memory to find the header */
- for (i = 0; sabi_configs[i].test_string != 0; ++i) {
- sabi_config = &sabi_configs[i];
- loca = find_signature(f0000_segment, sabi_config->test_string);
- if (loca != 0xffff)
- break;
- }
-
- if (loca == 0xffff) {
- pr_err("This computer does not support SABI\n");
- goto error_no_signature;
- }
-
- /* point to the SMI port Number */
- loca += 1;
- sabi = (f0000_segment + loca);
-
- if (debug) {
- printk(KERN_DEBUG "This computer supports SABI==%x\n",
- loca + 0xf0000 - 6);
- printk(KERN_DEBUG "SABI header:\n");
- printk(KERN_DEBUG " SMI Port Number = 0x%04x\n",
- readw(sabi + sabi_config->header_offsets.port));
- printk(KERN_DEBUG " SMI Interface Function = 0x%02x\n",
- readb(sabi + sabi_config->header_offsets.iface_func));
- printk(KERN_DEBUG " SMI enable memory buffer = 0x%02x\n",
- readb(sabi + sabi_config->header_offsets.en_mem));
- printk(KERN_DEBUG " SMI restore memory buffer = 0x%02x\n",
- readb(sabi + sabi_config->header_offsets.re_mem));
- printk(KERN_DEBUG " SABI data offset = 0x%04x\n",
- readw(sabi + sabi_config->header_offsets.data_offset));
- printk(KERN_DEBUG " SABI data segment = 0x%04x\n",
- readw(sabi + sabi_config->header_offsets.data_segment));
- }
-
- /* Get a pointer to the SABI Interface */
- ifaceP = (readw(sabi + sabi_config->header_offsets.data_segment) & 0x0ffff) << 4;
- ifaceP += readw(sabi + sabi_config->header_offsets.data_offset) & 0x0ffff;
- sabi_iface = ioremap_nocache(ifaceP, 16);
- if (!sabi_iface) {
- pr_err("Can't remap %x\n", ifaceP);
- goto exit;
- }
- if (debug) {
- printk(KERN_DEBUG "ifaceP = 0x%08x\n", ifaceP);
- printk(KERN_DEBUG "sabi_iface = %p\n", sabi_iface);
-
- test_backlight();
- test_wireless();
-
- retval = sabi_get_command(sabi_config->commands.get_brightness,
- &sretval);
- printk(KERN_DEBUG "brightness = 0x%02x\n", sretval.retval[0]);
- }
-
- /* Turn on "Linux" mode in the BIOS */
- if (sabi_config->commands.set_linux != 0xff) {
- retval = sabi_set_command(sabi_config->commands.set_linux,
- 0x81);
- if (retval) {
- pr_warn("Linux mode was not set!\n");
- goto error_no_platform;
- }
- }
-
- /* knock up a platform device to hang stuff off of */
- sdev = platform_device_register_simple("samsung", -1, NULL, 0);
- if (IS_ERR(sdev))
- goto error_no_platform;
-
- /* create a backlight device to talk to this one */
- memset(&props, 0, sizeof(struct backlight_properties));
- props.type = BACKLIGHT_PLATFORM;
- props.max_brightness = sabi_config->max_brightness;
- backlight_device = backlight_device_register("samsung", &sdev->dev,
- NULL, &backlight_ops,
- &props);
- if (IS_ERR(backlight_device))
- goto error_no_backlight;
-
- backlight_device->props.brightness = read_brightness();
- backlight_device->props.power = FB_BLANK_UNBLANK;
- backlight_update_status(backlight_device);
-
- retval = init_wireless(sdev);
- if (retval)
- goto error_no_rfk;
-
- retval = device_create_file(&sdev->dev, &dev_attr_performance_level);
- if (retval)
- goto error_file_create;
-
-exit:
- return 0;
-
-error_file_create:
- destroy_wireless();
-
-error_no_rfk:
- backlight_device_unregister(backlight_device);
-
-error_no_backlight:
- platform_device_unregister(sdev);
-
-error_no_platform:
- iounmap(sabi_iface);
-
-error_no_signature:
- iounmap(f0000_segment);
- return -EINVAL;
-}
-
-static void __exit samsung_exit(void)
-{
- /* Turn off "Linux" mode in the BIOS */
- if (sabi_config->commands.set_linux != 0xff)
- sabi_set_command(sabi_config->commands.set_linux, 0x80);
-
- device_remove_file(&sdev->dev, &dev_attr_performance_level);
- backlight_device_unregister(backlight_device);
- destroy_wireless();
- iounmap(sabi_iface);
- iounmap(f0000_segment);
- platform_device_unregister(sdev);
-}
-
-module_init(samsung_init);
-module_exit(samsung_exit);
-
-MODULE_AUTHOR("Greg Kroah-Hartman <gregkh@suse.de>");
-MODULE_DESCRIPTION("Samsung Backlight driver");
-MODULE_LICENSE("GPL");
default y if ARCH_VT8500
default y if PLAT_SPEAR
default y if ARCH_MSM
+ default y if MICROBLAZE
default PCI
# ARM SA1111 chips have a non-PCI based "OHCI-compatible" USB host interface.
break;
case USB_ENDPOINT_XFER_INT:
type = "Int.";
- if (speed == USB_SPEED_HIGH)
+ if (speed == USB_SPEED_HIGH || speed == USB_SPEED_SUPER)
interval = 1 << (desc->bInterval - 1);
else
interval = desc->bInterval;
default: /* "can't happen" */
return start;
}
- interval *= (speed == USB_SPEED_HIGH) ? 125 : 1000;
+ interval *= (speed == USB_SPEED_HIGH ||
+ speed == USB_SPEED_SUPER) ? 125 : 1000;
if (interval % 1000)
unit = 'u';
else {
if (level == 0) {
int max;
- /* high speed reserves 80%, full/low reserves 90% */
- if (usbdev->speed == USB_SPEED_HIGH)
+ /* super/high speed reserves 80%, full/low reserves 90% */
+ if (usbdev->speed == USB_SPEED_HIGH ||
+ usbdev->speed == USB_SPEED_SUPER)
max = 800;
else
max = FRAME_TIME_MAX_USECS_ALLOC;
/* Streams only apply to bulk endpoints. */
for (i = 0; i < num_eps; i++)
- if (!usb_endpoint_xfer_bulk(&eps[i]->desc))
+ if (!eps[i] || !usb_endpoint_xfer_bulk(&eps[i]->desc))
return;
hcd->driver->free_streams(hcd, dev, eps, num_eps, mem_flags);
}
/* see 7.1.7.6 */
- status = set_port_feature(hub->hdev, port1, USB_PORT_FEAT_SUSPEND);
+ /* Clear PORT_POWER if it's a USB3.0 device connected to USB 3.0
+ * external hub.
+ * FIXME: this is a temporary workaround to make the system able
+ * to suspend/resume.
+ */
+ if ((hub->hdev->parent != NULL) && hub_is_superspeed(hub->hdev))
+ status = clear_port_feature(hub->hdev, port1,
+ USB_PORT_FEAT_POWER);
+ else
+ status = set_port_feature(hub->hdev, port1,
+ USB_PORT_FEAT_SUSPEND);
if (status) {
dev_dbg(hub->intfdev, "can't suspend port %d, status %d\n",
port1, status);
struct f_audio *audio = func_to_audio(f);
usb_free_descriptors(f->descriptors);
+ usb_free_descriptors(f->hs_descriptors);
kfree(audio);
}
static void eem_cmd_complete(struct usb_ep *ep, struct usb_request *req)
{
+ struct sk_buff *skb = (struct sk_buff *)req->context;
+
+ dev_kfree_skb_any(skb);
}
/*
skb_trim(skb2, len);
put_unaligned_le16(BIT(15) | BIT(11) | len,
skb_push(skb2, 2));
- skb_copy_bits(skb, 0, req->buf, skb->len);
- req->length = skb->len;
+ skb_copy_bits(skb2, 0, req->buf, skb2->len);
+ req->length = skb2->len;
req->complete = eem_cmd_complete;
req->zero = 1;
+ req->context = skb2;
if (usb_ep_queue(port->in_ep, req, GFP_ATOMIC))
DBG(cdev, "echo response queue fail\n");
break;
static int txcomplete(struct qe_ep *ep, unsigned char restart)
{
if (ep->tx_req != NULL) {
+ struct qe_req *req = ep->tx_req;
+ unsigned zlp = 0, last_len = 0;
+
+ last_len = min_t(unsigned, req->req.length - ep->sent,
+ ep->ep.maxpacket);
+
if (!restart) {
int asent = ep->last;
ep->sent += asent;
ep->last = 0;
}
+ /* zlp needed when req->re.zero is set */
+ if (req->req.zero) {
+ if (last_len == 0 ||
+ (req->req.length % ep->ep.maxpacket) != 0)
+ zlp = 0;
+ else
+ zlp = 1;
+ } else
+ zlp = 0;
+
/* a request already were transmitted completely */
- if ((ep->tx_req->req.length - ep->sent) <= 0) {
- ep->tx_req->req.actual = (unsigned int)ep->sent;
+ if (((ep->tx_req->req.length - ep->sent) <= 0) && !zlp) {
done(ep, ep->tx_req, 0);
ep->tx_req = NULL;
ep->last = 0;
buf = (u8 *)ep->tx_req->req.buf + ep->sent;
if (buf && size) {
ep->last = size;
+ ep->tx_req->req.actual += size;
frame_set_data(frame, buf);
frame_set_length(frame, size);
frame_set_status(frame, FRAME_OK);
/* halt any endpoint by doing a "wrong direction" i/o call */
if (usb_endpoint_dir_in(&data->desc)) {
- if (usb_endpoint_xfer_isoc(&data->desc))
+ if (usb_endpoint_xfer_isoc(&data->desc)) {
+ mutex_unlock(&data->lock);
return -EINVAL;
+ }
DBG (data->dev, "%s halt\n", data->name);
spin_lock_irq (&data->dev->lock);
if (likely (data->ep != NULL))
return -EINVAL;
if (!dev->driver || (dev->gadget.speed == USB_SPEED_UNKNOWN))
return -ESHUTDOWN;
- spin_lock_irqsave(&ep->dev->lock, iflags);
+ spin_lock_irqsave(&dev->lock, iflags);
/* map the buffer for dma */
if (usbreq->length &&
((usbreq->dma == DMA_ADDR_INVALID) || !usbreq->dma)) {
DMA_FROM_DEVICE);
} else {
req->buf = kzalloc(usbreq->length, GFP_ATOMIC);
- if (!req->buf)
- return -ENOMEM;
+ if (!req->buf) {
+ retval = -ENOMEM;
+ goto probe_end;
+ }
if (ep->in) {
memcpy(req->buf, usbreq->buf, usbreq->length);
req->dma = dma_map_single(&dev->pdev->dev,
if (dvsq == DS_DFLT) {
/* bus reset */
+ spin_unlock(&r8a66597->lock);
r8a66597->driver->disconnect(&r8a66597->gadget);
+ spin_lock(&r8a66597->lock);
r8a66597_update_usb_speed(r8a66597);
}
if (r8a66597->old_dvsq == DS_CNFG && dvsq != DS_CNFG)
static void scan_async (struct ehci_hcd *ehci)
{
+ bool stopped;
struct ehci_qh *qh;
enum ehci_timer_action action = TIMER_IO_WATCHDOG;
ehci->stamp = ehci_readl(ehci, &ehci->regs->frame_index);
timer_action_done (ehci, TIMER_ASYNC_SHRINK);
rescan:
+ stopped = !HC_IS_RUNNING(ehci_to_hcd(ehci)->state);
qh = ehci->async->qh_next.qh;
if (likely (qh != NULL)) {
do {
/* clean any finished work for this qh */
- if (!list_empty (&qh->qtd_list)
- && qh->stamp != ehci->stamp) {
+ if (!list_empty(&qh->qtd_list) && (stopped ||
+ qh->stamp != ehci->stamp)) {
int temp;
/* unlinks could happen here; completion
* reporting drops the lock. rescan using
* the latest schedule, but don't rescan
- * qhs we already finished (no looping).
+ * qhs we already finished (no looping)
+ * unless the controller is stopped.
*/
qh = qh_get (qh);
qh->stamp = ehci->stamp;
*/
if (list_empty(&qh->qtd_list)
&& qh->qh_state == QH_STATE_LINKED) {
- if (!ehci->reclaim
- && ((ehci->stamp - qh->stamp) & 0x1fff)
- >= (EHCI_SHRINK_FRAMES * 8))
+ if (!ehci->reclaim && (stopped ||
+ ((ehci->stamp - qh->stamp) & 0x1fff)
+ >= EHCI_SHRINK_FRAMES * 8))
start_unlink_async(ehci, qh);
else
action = TIMER_ASYNC_SHRINK;
}
dev_err(hcd->self.controller,
- "%s: Can not allocate %lu bytes of memory\n"
+ "%s: Cannot allocate %zu bytes of memory\n"
"Current memory map:\n",
__func__, qtd->length);
for (i = 0; i < BLOCKS; i++) {
#ifdef __LITTLE_ENDIAN
#define USBH_ENABLE_INIT (USBH_ENABLE_CE | USBH_ENABLE_E | USBH_ENABLE_C)
-#elif __BIG_ENDIAN
+#elif defined(__BIG_ENDIAN)
#define USBH_ENABLE_INIT (USBH_ENABLE_CE | USBH_ENABLE_E | USBH_ENABLE_C | \
USBH_ENABLE_BE)
#else
{
u8 rev = 0;
unsigned long flags;
+ struct amd_chipset_info info;
+ int ret;
spin_lock_irqsave(&amd_lock, flags);
- amd_chipset.probe_count++;
/* probe only once */
- if (amd_chipset.probe_count > 1) {
+ if (amd_chipset.probe_count > 0) {
+ amd_chipset.probe_count++;
spin_unlock_irqrestore(&amd_lock, flags);
return amd_chipset.probe_result;
}
+ memset(&info, 0, sizeof(info));
+ spin_unlock_irqrestore(&amd_lock, flags);
- amd_chipset.smbus_dev = pci_get_device(PCI_VENDOR_ID_ATI, 0x4385, NULL);
- if (amd_chipset.smbus_dev) {
- rev = amd_chipset.smbus_dev->revision;
+ info.smbus_dev = pci_get_device(PCI_VENDOR_ID_ATI, 0x4385, NULL);
+ if (info.smbus_dev) {
+ rev = info.smbus_dev->revision;
if (rev >= 0x40)
- amd_chipset.sb_type = 1;
+ info.sb_type = 1;
else if (rev >= 0x30 && rev <= 0x3b)
- amd_chipset.sb_type = 3;
+ info.sb_type = 3;
} else {
- amd_chipset.smbus_dev = pci_get_device(PCI_VENDOR_ID_AMD,
- 0x780b, NULL);
- if (!amd_chipset.smbus_dev) {
- spin_unlock_irqrestore(&amd_lock, flags);
- return 0;
+ info.smbus_dev = pci_get_device(PCI_VENDOR_ID_AMD,
+ 0x780b, NULL);
+ if (!info.smbus_dev) {
+ ret = 0;
+ goto commit;
}
- rev = amd_chipset.smbus_dev->revision;
+
+ rev = info.smbus_dev->revision;
if (rev >= 0x11 && rev <= 0x18)
- amd_chipset.sb_type = 2;
+ info.sb_type = 2;
}
- if (amd_chipset.sb_type == 0) {
- if (amd_chipset.smbus_dev) {
- pci_dev_put(amd_chipset.smbus_dev);
- amd_chipset.smbus_dev = NULL;
+ if (info.sb_type == 0) {
+ if (info.smbus_dev) {
+ pci_dev_put(info.smbus_dev);
+ info.smbus_dev = NULL;
}
- spin_unlock_irqrestore(&amd_lock, flags);
- return 0;
+ ret = 0;
+ goto commit;
}
- amd_chipset.nb_dev = pci_get_device(PCI_VENDOR_ID_AMD, 0x9601, NULL);
- if (amd_chipset.nb_dev) {
- amd_chipset.nb_type = 1;
+ info.nb_dev = pci_get_device(PCI_VENDOR_ID_AMD, 0x9601, NULL);
+ if (info.nb_dev) {
+ info.nb_type = 1;
} else {
- amd_chipset.nb_dev = pci_get_device(PCI_VENDOR_ID_AMD,
- 0x1510, NULL);
- if (amd_chipset.nb_dev) {
- amd_chipset.nb_type = 2;
- } else {
- amd_chipset.nb_dev = pci_get_device(PCI_VENDOR_ID_AMD,
- 0x9600, NULL);
- if (amd_chipset.nb_dev)
- amd_chipset.nb_type = 3;
+ info.nb_dev = pci_get_device(PCI_VENDOR_ID_AMD, 0x1510, NULL);
+ if (info.nb_dev) {
+ info.nb_type = 2;
+ } else {
+ info.nb_dev = pci_get_device(PCI_VENDOR_ID_AMD,
+ 0x9600, NULL);
+ if (info.nb_dev)
+ info.nb_type = 3;
}
}
- amd_chipset.probe_result = 1;
+ ret = info.probe_result = 1;
printk(KERN_DEBUG "QUIRK: Enable AMD PLL fix\n");
- spin_unlock_irqrestore(&amd_lock, flags);
- return amd_chipset.probe_result;
+commit:
+
+ spin_lock_irqsave(&amd_lock, flags);
+ if (amd_chipset.probe_count > 0) {
+ /* race - someone else was faster - drop devices */
+
+ /* Mark that we where here */
+ amd_chipset.probe_count++;
+ ret = amd_chipset.probe_result;
+
+ spin_unlock_irqrestore(&amd_lock, flags);
+
+ if (info.nb_dev)
+ pci_dev_put(info.nb_dev);
+ if (info.smbus_dev)
+ pci_dev_put(info.smbus_dev);
+
+ } else {
+ /* no race - commit the result */
+ info.probe_count++;
+ amd_chipset = info;
+ spin_unlock_irqrestore(&amd_lock, flags);
+ }
+
+ return ret;
}
EXPORT_SYMBOL_GPL(usb_amd_find_chipset_info);
void usb_amd_dev_put(void)
{
+ struct pci_dev *nb, *smbus;
unsigned long flags;
spin_lock_irqsave(&amd_lock, flags);
return;
}
- if (amd_chipset.nb_dev) {
- pci_dev_put(amd_chipset.nb_dev);
- amd_chipset.nb_dev = NULL;
- }
- if (amd_chipset.smbus_dev) {
- pci_dev_put(amd_chipset.smbus_dev);
- amd_chipset.smbus_dev = NULL;
- }
+ /* save them to pci_dev_put outside of spinlock */
+ nb = amd_chipset.nb_dev;
+ smbus = amd_chipset.smbus_dev;
+
+ amd_chipset.nb_dev = NULL;
+ amd_chipset.smbus_dev = NULL;
amd_chipset.nb_type = 0;
amd_chipset.sb_type = 0;
amd_chipset.isoc_reqs = 0;
amd_chipset.probe_result = 0;
spin_unlock_irqrestore(&amd_lock, flags);
+
+ if (nb)
+ pci_dev_put(nb);
+ if (smbus)
+ pci_dev_put(smbus);
}
EXPORT_SYMBOL_GPL(usb_amd_dev_put);
* Skip ports that don't have known speeds, or have duplicate
* Extended Capabilities port speed entries.
*/
- if (port_speed == 0 || port_speed == -1)
+ if (port_speed == 0 || port_speed == DUPLICATE_ENTRY)
continue;
/*
return 0;
}
+/*
+ * Convert interval expressed as 2^(bInterval - 1) == interval into
+ * straight exponent value 2^n == interval.
+ *
+ */
+static unsigned int xhci_parse_exponent_interval(struct usb_device *udev,
+ struct usb_host_endpoint *ep)
+{
+ unsigned int interval;
+
+ interval = clamp_val(ep->desc.bInterval, 1, 16) - 1;
+ if (interval != ep->desc.bInterval - 1)
+ dev_warn(&udev->dev,
+ "ep %#x - rounding interval to %d microframes\n",
+ ep->desc.bEndpointAddress,
+ 1 << interval);
+
+ return interval;
+}
+
+/*
+ * Convert bInterval expressed in frames (in 1-255 range) to exponent of
+ * microframes, rounded down to nearest power of 2.
+ */
+static unsigned int xhci_parse_frame_interval(struct usb_device *udev,
+ struct usb_host_endpoint *ep)
+{
+ unsigned int interval;
+
+ interval = fls(8 * ep->desc.bInterval) - 1;
+ interval = clamp_val(interval, 3, 10);
+ if ((1 << interval) != 8 * ep->desc.bInterval)
+ dev_warn(&udev->dev,
+ "ep %#x - rounding interval to %d microframes, ep desc says %d microframes\n",
+ ep->desc.bEndpointAddress,
+ 1 << interval,
+ 8 * ep->desc.bInterval);
+
+ return interval;
+}
+
/* Return the polling or NAK interval.
*
* The polling interval is expressed in "microframes". If xHCI's Interval field
* The NAK interval is one NAK per 1 to 255 microframes, or no NAKs if interval
* is set to 0.
*/
-static inline unsigned int xhci_get_endpoint_interval(struct usb_device *udev,
+static unsigned int xhci_get_endpoint_interval(struct usb_device *udev,
struct usb_host_endpoint *ep)
{
unsigned int interval = 0;
case USB_SPEED_HIGH:
/* Max NAK rate */
if (usb_endpoint_xfer_control(&ep->desc) ||
- usb_endpoint_xfer_bulk(&ep->desc))
+ usb_endpoint_xfer_bulk(&ep->desc)) {
interval = ep->desc.bInterval;
+ break;
+ }
/* Fall through - SS and HS isoc/int have same decoding */
+
case USB_SPEED_SUPER:
if (usb_endpoint_xfer_int(&ep->desc) ||
- usb_endpoint_xfer_isoc(&ep->desc)) {
- if (ep->desc.bInterval == 0)
- interval = 0;
- else
- interval = ep->desc.bInterval - 1;
- if (interval > 15)
- interval = 15;
- if (interval != ep->desc.bInterval + 1)
- dev_warn(&udev->dev, "ep %#x - rounding interval to %d microframes\n",
- ep->desc.bEndpointAddress, 1 << interval);
+ usb_endpoint_xfer_isoc(&ep->desc)) {
+ interval = xhci_parse_exponent_interval(udev, ep);
}
break;
- /* Convert bInterval (in 1-255 frames) to microframes and round down to
- * nearest power of 2.
- */
+
case USB_SPEED_FULL:
+ if (usb_endpoint_xfer_int(&ep->desc)) {
+ interval = xhci_parse_exponent_interval(udev, ep);
+ break;
+ }
+ /*
+ * Fall through for isochronous endpoint interval decoding
+ * since it uses the same rules as low speed interrupt
+ * endpoints.
+ */
+
case USB_SPEED_LOW:
if (usb_endpoint_xfer_int(&ep->desc) ||
- usb_endpoint_xfer_isoc(&ep->desc)) {
- interval = fls(8*ep->desc.bInterval) - 1;
- if (interval > 10)
- interval = 10;
- if (interval < 3)
- interval = 3;
- if ((1 << interval) != 8*ep->desc.bInterval)
- dev_warn(&udev->dev,
- "ep %#x - rounding interval"
- " to %d microframes, "
- "ep desc says %d microframes\n",
- ep->desc.bEndpointAddress,
- 1 << interval,
- 8*ep->desc.bInterval);
+ usb_endpoint_xfer_isoc(&ep->desc)) {
+
+ interval = xhci_parse_frame_interval(udev, ep);
}
break;
+
default:
BUG();
}
* transaction opportunities per microframe", but that goes in the Max Burst
* endpoint context field.
*/
-static inline u32 xhci_get_endpoint_mult(struct usb_device *udev,
+static u32 xhci_get_endpoint_mult(struct usb_device *udev,
struct usb_host_endpoint *ep)
{
if (udev->speed != USB_SPEED_SUPER ||
return ep->ss_ep_comp.bmAttributes;
}
-static inline u32 xhci_get_endpoint_type(struct usb_device *udev,
+static u32 xhci_get_endpoint_type(struct usb_device *udev,
struct usb_host_endpoint *ep)
{
int in;
* Basically, this is the maxpacket size, multiplied by the burst size
* and mult size.
*/
-static inline u32 xhci_get_max_esit_payload(struct xhci_hcd *xhci,
+static u32 xhci_get_max_esit_payload(struct xhci_hcd *xhci,
struct usb_device *udev,
struct usb_host_endpoint *ep)
{
* found a similar duplicate.
*/
if (xhci->port_array[i] != major_revision &&
- xhci->port_array[i] != (u8) -1) {
+ xhci->port_array[i] != DUPLICATE_ENTRY) {
if (xhci->port_array[i] == 0x03)
xhci->num_usb3_ports--;
else
xhci->num_usb2_ports--;
- xhci->port_array[i] = (u8) -1;
+ xhci->port_array[i] = DUPLICATE_ENTRY;
}
/* FIXME: Should we disable the port? */
continue;
for (i = 0; i < num_ports; i++) {
if (xhci->port_array[i] == 0x03 ||
xhci->port_array[i] == 0 ||
- xhci->port_array[i] == -1)
+ xhci->port_array[i] == DUPLICATE_ENTRY)
continue;
xhci->usb2_ports[port_index] =
if (pdev->vendor == PCI_VENDOR_ID_NEC)
xhci->quirks |= XHCI_NEC_HOST;
+ /* AMD PLL quirk */
+ if (pdev->vendor == PCI_VENDOR_ID_AMD && usb_amd_find_chipset_info())
+ xhci->quirks |= XHCI_AMD_PLL_FIX;
+
/* Make sure the HC is halted. */
retval = xhci_halt(xhci);
if (retval)
/* Does this link TRB point to the first segment in a ring,
* or was the previous TRB the last TRB on the last segment in the ERST?
*/
-static inline bool last_trb_on_last_seg(struct xhci_hcd *xhci, struct xhci_ring *ring,
+static bool last_trb_on_last_seg(struct xhci_hcd *xhci, struct xhci_ring *ring,
struct xhci_segment *seg, union xhci_trb *trb)
{
if (ring == xhci->event_ring)
* segment? I.e. would the updated event TRB pointer step off the end of the
* event seg?
*/
-static inline int last_trb(struct xhci_hcd *xhci, struct xhci_ring *ring,
+static int last_trb(struct xhci_hcd *xhci, struct xhci_ring *ring,
struct xhci_segment *seg, union xhci_trb *trb)
{
if (ring == xhci->event_ring)
return (trb->link.control & TRB_TYPE_BITMASK) == TRB_TYPE(TRB_LINK);
}
-static inline int enqueue_is_link_trb(struct xhci_ring *ring)
+static int enqueue_is_link_trb(struct xhci_ring *ring)
{
struct xhci_link_trb *link = &ring->enqueue->link;
return ((link->control & TRB_TYPE_BITMASK) == TRB_TYPE(TRB_LINK));
ep->ep_state |= SET_DEQ_PENDING;
}
-static inline void xhci_stop_watchdog_timer_in_irq(struct xhci_hcd *xhci,
+static void xhci_stop_watchdog_timer_in_irq(struct xhci_hcd *xhci,
struct xhci_virt_ep *ep)
{
ep->ep_state &= ~EP_HALT_PENDING;
/* Only giveback urb when this is the last td in urb */
if (urb_priv->td_cnt == urb_priv->length) {
+ if (usb_pipetype(urb->pipe) == PIPE_ISOCHRONOUS) {
+ xhci_to_hcd(xhci)->self.bandwidth_isoc_reqs--;
+ if (xhci_to_hcd(xhci)->self.bandwidth_isoc_reqs == 0) {
+ if (xhci->quirks & XHCI_AMD_PLL_FIX)
+ usb_amd_quirk_pll_enable();
+ }
+ }
usb_hcd_unlink_urb_from_ep(hcd, urb);
xhci_dbg(xhci, "Giveback %s URB %p\n", adjective, urb);
* Skip ports that don't have known speeds, or have duplicate
* Extended Capabilities port speed entries.
*/
- if (port_speed == 0 || port_speed == -1)
+ if (port_speed == 0 || port_speed == DUPLICATE_ENTRY)
continue;
/*
u8 major_revision;
struct xhci_bus_state *bus_state;
u32 __iomem **port_array;
+ bool bogus_port_status = false;
/* Port status change events always have a successful completion code */
if (GET_COMP_CODE(event->generic.field[2]) != COMP_SUCCESS) {
max_ports = HCS_MAX_PORTS(xhci->hcs_params1);
if ((port_id <= 0) || (port_id > max_ports)) {
xhci_warn(xhci, "Invalid port id %d\n", port_id);
+ bogus_port_status = true;
goto cleanup;
}
xhci_warn(xhci, "Event for port %u not in "
"Extended Capabilities, ignoring.\n",
port_id);
+ bogus_port_status = true;
goto cleanup;
}
- if (major_revision == (u8) -1) {
+ if (major_revision == DUPLICATE_ENTRY) {
xhci_warn(xhci, "Event for port %u duplicated in"
"Extended Capabilities, ignoring.\n",
port_id);
+ bogus_port_status = true;
goto cleanup;
}
/* Update event ring dequeue pointer before dropping the lock */
inc_deq(xhci, xhci->event_ring, true);
+ /* Don't make the USB core poll the roothub if we got a bad port status
+ * change event. Besides, at that point we can't tell which roothub
+ * (USB 2.0 or USB 3.0) to kick.
+ */
+ if (bogus_port_status)
+ return;
+
spin_unlock(&xhci->lock);
/* Pass this up to the core */
usb_hcd_poll_rh_status(hcd);
urb_priv->td_cnt++;
/* Giveback the urb when all the tds are completed */
- if (urb_priv->td_cnt == urb_priv->length)
+ if (urb_priv->td_cnt == urb_priv->length) {
ret = 1;
+ if (usb_pipetype(urb->pipe) == PIPE_ISOCHRONOUS) {
+ xhci_to_hcd(xhci)->self.bandwidth_isoc_reqs--;
+ if (xhci_to_hcd(xhci)->self.bandwidth_isoc_reqs
+ == 0) {
+ if (xhci->quirks & XHCI_AMD_PLL_FIX)
+ usb_amd_quirk_pll_enable();
+ }
+ }
+ }
}
return ret;
struct urb_priv *urb_priv;
int idx;
int len = 0;
- int skip_td = 0;
union xhci_trb *cur_trb;
struct xhci_segment *cur_seg;
+ struct usb_iso_packet_descriptor *frame;
u32 trb_comp_code;
+ bool skip_td = false;
ep_ring = xhci_dma_to_transfer_ring(ep, event->buffer);
trb_comp_code = GET_COMP_CODE(event->transfer_len);
urb_priv = td->urb->hcpriv;
idx = urb_priv->td_cnt;
+ frame = &td->urb->iso_frame_desc[idx];
- if (ep->skip) {
- /* The transfer is partly done */
- *status = -EXDEV;
- td->urb->iso_frame_desc[idx].status = -EXDEV;
- } else {
- /* handle completion code */
- switch (trb_comp_code) {
- case COMP_SUCCESS:
- td->urb->iso_frame_desc[idx].status = 0;
- xhci_dbg(xhci, "Successful isoc transfer!\n");
- break;
- case COMP_SHORT_TX:
- if (td->urb->transfer_flags & URB_SHORT_NOT_OK)
- td->urb->iso_frame_desc[idx].status =
- -EREMOTEIO;
- else
- td->urb->iso_frame_desc[idx].status = 0;
- break;
- case COMP_BW_OVER:
- td->urb->iso_frame_desc[idx].status = -ECOMM;
- skip_td = 1;
- break;
- case COMP_BUFF_OVER:
- case COMP_BABBLE:
- td->urb->iso_frame_desc[idx].status = -EOVERFLOW;
- skip_td = 1;
- break;
- case COMP_STALL:
- td->urb->iso_frame_desc[idx].status = -EPROTO;
- skip_td = 1;
- break;
- case COMP_STOP:
- case COMP_STOP_INVAL:
- break;
- default:
- td->urb->iso_frame_desc[idx].status = -1;
- break;
- }
- }
-
- /* calc actual length */
- if (ep->skip) {
- td->urb->iso_frame_desc[idx].actual_length = 0;
- /* Update ring dequeue pointer */
- while (ep_ring->dequeue != td->last_trb)
- inc_deq(xhci, ep_ring, false);
- inc_deq(xhci, ep_ring, false);
- return finish_td(xhci, td, event_trb, event, ep, status, true);
+ /* handle completion code */
+ switch (trb_comp_code) {
+ case COMP_SUCCESS:
+ frame->status = 0;
+ xhci_dbg(xhci, "Successful isoc transfer!\n");
+ break;
+ case COMP_SHORT_TX:
+ frame->status = td->urb->transfer_flags & URB_SHORT_NOT_OK ?
+ -EREMOTEIO : 0;
+ break;
+ case COMP_BW_OVER:
+ frame->status = -ECOMM;
+ skip_td = true;
+ break;
+ case COMP_BUFF_OVER:
+ case COMP_BABBLE:
+ frame->status = -EOVERFLOW;
+ skip_td = true;
+ break;
+ case COMP_STALL:
+ frame->status = -EPROTO;
+ skip_td = true;
+ break;
+ case COMP_STOP:
+ case COMP_STOP_INVAL:
+ break;
+ default:
+ frame->status = -1;
+ break;
}
- if (trb_comp_code == COMP_SUCCESS || skip_td == 1) {
- td->urb->iso_frame_desc[idx].actual_length =
- td->urb->iso_frame_desc[idx].length;
- td->urb->actual_length +=
- td->urb->iso_frame_desc[idx].length;
+ if (trb_comp_code == COMP_SUCCESS || skip_td) {
+ frame->actual_length = frame->length;
+ td->urb->actual_length += frame->length;
} else {
for (cur_trb = ep_ring->dequeue,
cur_seg = ep_ring->deq_seg; cur_trb != event_trb;
TRB_LEN(event->transfer_len);
if (trb_comp_code != COMP_STOP_INVAL) {
- td->urb->iso_frame_desc[idx].actual_length = len;
+ frame->actual_length = len;
td->urb->actual_length += len;
}
}
return finish_td(xhci, td, event_trb, event, ep, status, false);
}
+static int skip_isoc_td(struct xhci_hcd *xhci, struct xhci_td *td,
+ struct xhci_transfer_event *event,
+ struct xhci_virt_ep *ep, int *status)
+{
+ struct xhci_ring *ep_ring;
+ struct urb_priv *urb_priv;
+ struct usb_iso_packet_descriptor *frame;
+ int idx;
+
+ ep_ring = xhci_dma_to_transfer_ring(ep, event->buffer);
+ urb_priv = td->urb->hcpriv;
+ idx = urb_priv->td_cnt;
+ frame = &td->urb->iso_frame_desc[idx];
+
+ /* The transfer is partly done */
+ *status = -EXDEV;
+ frame->status = -EXDEV;
+
+ /* calc actual length */
+ frame->actual_length = 0;
+
+ /* Update ring dequeue pointer */
+ while (ep_ring->dequeue != td->last_trb)
+ inc_deq(xhci, ep_ring, false);
+ inc_deq(xhci, ep_ring, false);
+
+ return finish_td(xhci, td, NULL, event, ep, status, true);
+}
+
/*
* Process bulk and interrupt tds, update urb status and actual_length.
*/
}
td = list_entry(ep_ring->td_list.next, struct xhci_td, td_list);
+
/* Is this a TRB in the currently executing TD? */
event_seg = trb_in_td(ep_ring->deq_seg, ep_ring->dequeue,
td->last_trb, event_dma);
- if (event_seg && ep->skip) {
+ if (!event_seg) {
+ if (!ep->skip ||
+ !usb_endpoint_xfer_isoc(&td->urb->ep->desc)) {
+ /* HC is busted, give up! */
+ xhci_err(xhci,
+ "ERROR Transfer event TRB DMA ptr not "
+ "part of current TD\n");
+ return -ESHUTDOWN;
+ }
+
+ ret = skip_isoc_td(xhci, td, event, ep, &status);
+ goto cleanup;
+ }
+
+ if (ep->skip) {
xhci_dbg(xhci, "Found td. Clear skip flag.\n");
ep->skip = false;
}
- if (!event_seg &&
- (!ep->skip || !usb_endpoint_xfer_isoc(&td->urb->ep->desc))) {
- /* HC is busted, give up! */
- xhci_err(xhci, "ERROR Transfer event TRB DMA ptr not "
- "part of current TD\n");
- return -ESHUTDOWN;
- }
- if (event_seg) {
- event_trb = &event_seg->trbs[(event_dma -
- event_seg->dma) / sizeof(*event_trb)];
- /*
- * No-op TRB should not trigger interrupts.
- * If event_trb is a no-op TRB, it means the
- * corresponding TD has been cancelled. Just ignore
- * the TD.
- */
- if ((event_trb->generic.field[3] & TRB_TYPE_BITMASK)
- == TRB_TYPE(TRB_TR_NOOP)) {
- xhci_dbg(xhci, "event_trb is a no-op TRB. "
- "Skip it\n");
- goto cleanup;
- }
+ event_trb = &event_seg->trbs[(event_dma - event_seg->dma) /
+ sizeof(*event_trb)];
+ /*
+ * No-op TRB should not trigger interrupts.
+ * If event_trb is a no-op TRB, it means the
+ * corresponding TD has been cancelled. Just ignore
+ * the TD.
+ */
+ if ((event_trb->generic.field[3] & TRB_TYPE_BITMASK)
+ == TRB_TYPE(TRB_TR_NOOP)) {
+ xhci_dbg(xhci,
+ "event_trb is a no-op TRB. Skip it\n");
+ goto cleanup;
}
/* Now update the urb's actual_length and give back to
}
}
+ if (xhci_to_hcd(xhci)->self.bandwidth_isoc_reqs == 0) {
+ if (xhci->quirks & XHCI_AMD_PLL_FIX)
+ usb_amd_quirk_pll_disable();
+ }
+ xhci_to_hcd(xhci)->self.bandwidth_isoc_reqs++;
+
giveback_first_trb(xhci, slot_id, ep_index, urb->stream_id,
start_cycle, start_trb);
return 0;
del_timer_sync(&xhci->event_ring_timer);
#endif
+ if (xhci->quirks & XHCI_AMD_PLL_FIX)
+ usb_amd_dev_put();
+
xhci_dbg(xhci, "// Disabling event ring interrupts\n");
temp = xhci_readl(xhci, &xhci->op_regs->status);
xhci_writel(xhci, temp & ~STS_EINT, &xhci->op_regs->status);
/* If restore operation fails, re-initialize the HC during resume */
if ((temp & STS_SRE) || hibernated) {
- usb_root_hub_lost_power(hcd->self.root_hub);
+ /* Let the USB core know _both_ roothubs lost power. */
+ usb_root_hub_lost_power(xhci->main_hcd->self.root_hub);
+ usb_root_hub_lost_power(xhci->shared_hcd->self.root_hub);
xhci_dbg(xhci, "Stop HCD\n");
xhci_halt(xhci);
/* Everything but endpoint 0 is disabled, so free or cache the rings. */
last_freed_endpoint = 1;
for (i = 1; i < 31; ++i) {
- if (!virt_dev->eps[i].ring)
- continue;
- xhci_free_or_cache_endpoint_ring(xhci, virt_dev, i);
- last_freed_endpoint = i;
+ struct xhci_virt_ep *ep = &virt_dev->eps[i];
+
+ if (ep->ep_state & EP_HAS_STREAMS) {
+ xhci_free_stream_info(xhci, ep->stream_info);
+ ep->stream_info = NULL;
+ ep->ep_state &= ~EP_HAS_STREAMS;
+ }
+
+ if (ep->ring) {
+ xhci_free_or_cache_endpoint_ring(xhci, virt_dev, i);
+ last_freed_endpoint = i;
+ }
}
xhci_dbg(xhci, "Output context after successful reset device cmd:\n");
xhci_dbg_ctx(xhci, virt_dev->out_ctx, last_freed_endpoint);
/* Code sharing between pci-quirks and xhci hcd */
#include "xhci-ext-caps.h"
+#include "pci-quirks.h"
/* xHCI PCI Configuration Registers */
#define XHCI_SBRN_OFFSET (0x60)
* notification type that matches a bit set in this bit field.
*/
#define DEV_NOTE_MASK (0xffff)
-#define ENABLE_DEV_NOTE(x) (1 << x)
+#define ENABLE_DEV_NOTE(x) (1 << (x))
/* Most of the device notification types should only be used for debug.
* SW does need to pay attention to function wake notifications.
*/
/* Initiate a warm port reset - complete when PORT_WRC is '1' */
#define PORT_WR (1 << 31)
+/* We mark duplicate entries with -1 */
+#define DUPLICATE_ENTRY ((u8)(-1))
+
/* Port Power Management Status and Control - port_power_base bitmasks */
/* Inactivity timer value for transitions into U1, in microseconds.
* Timeout can be up to 127us. 0xFF means an infinite timeout.
#define EP_STATE_STOPPED 3
#define EP_STATE_ERROR 4
/* Mult - Max number of burtst within an interval, in EP companion desc. */
-#define EP_MULT(p) ((p & 0x3) << 8)
+#define EP_MULT(p) (((p) & 0x3) << 8)
/* bits 10:14 are Max Primary Streams */
/* bit 15 is Linear Stream Array */
/* Interval - period between requests to an endpoint - 125u increments. */
-#define EP_INTERVAL(p) ((p & 0xff) << 16)
+#define EP_INTERVAL(p) (((p) & 0xff) << 16)
#define EP_INTERVAL_TO_UFRAMES(p) (1 << (((p) >> 16) & 0xff))
#define EP_MAXPSTREAMS_MASK (0x1f << 10)
#define EP_MAXPSTREAMS(p) (((p) << 10) & EP_MAXPSTREAMS_MASK)
#define XHCI_LINK_TRB_QUIRK (1 << 0)
#define XHCI_RESET_EP_QUIRK (1 << 1)
#define XHCI_NEC_HOST (1 << 2)
+#define XHCI_AMD_PLL_FIX (1 << 3)
/* There are two roothubs to keep track of bus suspend info for */
struct xhci_bus_state bus_state[2];
/* Is each xHCI roothub port a USB 3.0, USB 2.0, or USB 1.1 port? */
select TWL4030_USB if MACH_OMAP_3430SDP
select TWL6030_USB if MACH_OMAP_4430SDP || MACH_OMAP4_PANDA
select USB_OTG_UTILS
- tristate 'Inventra Highspeed Dual Role Controller (TI, ADI, ...)'
+ bool 'Inventra Highspeed Dual Role Controller (TI, ADI, ...)'
help
Say Y here if your system has a dual role high speed USB
controller based on the Mentor Graphics silicon IP. Then
If you do not know what this is, please say N.
- To compile this driver as a module, choose M here; the
- module will be called "musb-hdrc".
+# To compile this driver as a module, choose M here; the
+# module will be called "musb-hdrc".
choice
prompt "Platform Glue Layer"
#include <asm/cacheflush.h>
#include "musb_core.h"
+#include "musbhsdma.h"
#include "blackfin.h"
struct bfin_glue {
return -EIO;
}
+static int bfin_musb_adjust_channel_params(struct dma_channel *channel,
+ u16 packet_sz, u8 *mode,
+ dma_addr_t *dma_addr, u32 *len)
+{
+ struct musb_dma_channel *musb_channel = channel->private_data;
+
+ /*
+ * Anomaly 05000450 might cause data corruption when using DMA
+ * MODE 1 transmits with short packet. So to work around this,
+ * we truncate all MODE 1 transfers down to a multiple of the
+ * max packet size, and then do the last short packet transfer
+ * (if there is any) using MODE 0.
+ */
+ if (ANOMALY_05000450) {
+ if (musb_channel->transmit && *mode == 1)
+ *len = *len - (*len % packet_sz);
+ }
+
+ return 0;
+}
+
static void bfin_musb_reg_init(struct musb *musb)
{
if (ANOMALY_05000346) {
.vbus_status = bfin_musb_vbus_status,
.set_vbus = bfin_musb_set_vbus,
+
+ .adjust_channel_params = bfin_musb_adjust_channel_params,
};
static u64 bfin_dmamask = DMA_BIT_MASK(32);
length = min(n_bds * maxpacket, length);
}
- DBG(4, "TX DMA%d, pktSz %d %s bds %d dma 0x%x len %u\n",
+ DBG(4, "TX DMA%d, pktSz %d %s bds %d dma 0x%llx len %u\n",
tx->index,
maxpacket,
rndis ? "rndis" : "transparent",
n_bds,
- addr, length);
+ (unsigned long long)addr, length);
cppi_rndis_update(tx, 0, musb->ctrl_base, rndis);
length = min(n_bds * maxpacket, length);
DBG(4, "RX DMA%d seg, maxp %d %s bds %d (cnt %d) "
- "dma 0x%x len %u %u/%u\n",
+ "dma 0x%llx len %u %u/%u\n",
rx->index, maxpacket,
onepacket
? (is_rndis ? "rndis" : "onepacket")
musb_readl(tibase,
DAVINCI_RXCPPI_BUFCNT0_REG + (rx->index * 4))
& 0xffff,
- addr, length, rx->channel.actual_len, rx->buf_len);
+ (unsigned long long)addr, length,
+ rx->channel.actual_len, rx->buf_len);
/* only queue one segment at a time, since the hardware prevents
* correct queue shutdown after unexpected short packets
if (!completed && (bd->hw_options & CPPI_OWN_SET))
break;
- DBG(5, "C/RXBD %08x: nxt %08x buf %08x "
+ DBG(5, "C/RXBD %llx: nxt %08x buf %08x "
"off.len %08x opt.len %08x (%d)\n",
- bd->dma, bd->hw_next, bd->hw_bufp,
+ (unsigned long long)bd->dma, bd->hw_next, bd->hw_bufp,
bd->hw_off_len, bd->hw_options,
rx->channel.actual_len);
musb_ep_select(cppi->mregs, rx->index + 1);
csr = musb_readw(regs, MUSB_RXCSR);
if (csr & MUSB_RXCSR_DMAENAB) {
- DBG(4, "list%d %p/%p, last %08x%s, csr %04x\n",
+ DBG(4, "list%d %p/%p, last %llx%s, csr %04x\n",
rx->index,
rx->head, rx->tail,
rx->last_processed
- ? rx->last_processed->dma
+ ? (unsigned long long)
+ rx->last_processed->dma
: 0,
completed ? ", completed" : "",
csr);
tx = musb_readl(tibase, DAVINCI_TXCPPI_MASKED_REG);
rx = musb_readl(tibase, DAVINCI_RXCPPI_MASKED_REG);
- if (!tx && !rx)
+ if (!tx && !rx) {
+ if (cppi->irq)
+ spin_unlock_irqrestore(&musb->lock, flags);
return IRQ_NONE;
+ }
DBG(4, "CPPI IRQ Tx%x Rx%x\n", tx, rx);
*/
if (NULL == bd) {
DBG(1, "null BD\n");
- tx_ram->tx_complete = 0;
+ musb_writel(&tx_ram->tx_complete, 0, 0);
continue;
}
* compare mode by writing 1 to the tx_complete register.
*/
cppi_reset_tx(tx_ram, 1);
- cppi_ch->head = 0;
+ cppi_ch->head = NULL;
musb_writel(&tx_ram->tx_complete, 0, 1);
cppi_dump_tx(5, cppi_ch, " (done teardown)");
struct musb *musb = dev_to_musb(&pdev->dev);
unsigned long flags;
+ pm_runtime_get_sync(musb->controller);
spin_lock_irqsave(&musb->lock, flags);
musb_platform_disable(musb);
musb_generic_disable(musb);
musb_writeb(musb->mregs, MUSB_DEVCTL, 0);
musb_platform_exit(musb);
+ pm_runtime_put(musb->controller);
/* FIXME power down */
}
* @try_ilde: tries to idle the IP
* @vbus_status: returns vbus status if possible
* @set_vbus: forces vbus status
+ * @channel_program: pre check for standard dma channel_program func
*/
struct musb_platform_ops {
int (*init)(struct musb *musb);
int (*vbus_status)(struct musb *musb);
void (*set_vbus)(struct musb *musb, int on);
+
+ int (*adjust_channel_params)(struct dma_channel *channel,
+ u16 packet_sz, u8 *mode,
+ dma_addr_t *dma_addr, u32 *len);
};
/*
is_dma = 1;
csr |= MUSB_TXCSR_P_WZC_BITS;
csr &= ~(MUSB_TXCSR_DMAENAB | MUSB_TXCSR_P_UNDERRUN |
- MUSB_TXCSR_TXPKTRDY);
+ MUSB_TXCSR_TXPKTRDY | MUSB_TXCSR_AUTOSET);
musb_writew(epio, MUSB_TXCSR, csr);
/* Ensure writebuffer is empty. */
csr = musb_readw(epio, MUSB_TXCSR);
}
/* if the hardware doesn't have the request, easy ... */
- if (musb_ep->req_list.next != &request->list || musb_ep->busy)
+ if (musb_ep->req_list.next != &req->list || musb_ep->busy)
musb_g_giveback(musb_ep, request, -ECONNRESET);
/* ... else abort the dma transfer ... */
BUG_ON(channel->status == MUSB_DMA_STATUS_UNKNOWN ||
channel->status == MUSB_DMA_STATUS_BUSY);
+ /* Let targets check/tweak the arguments */
+ if (musb->ops->adjust_channel_params) {
+ int ret = musb->ops->adjust_channel_params(channel,
+ packet_sz, &mode, &dma_addr, &len);
+ if (ret)
+ return ret;
+ }
+
/*
* The DMA engine in RTL1.8 and above cannot handle
* DMA addresses that are not aligned to a 4 byte boundary.
case USB_EVENT_VBUS:
DBG(4, "VBUS Connect\n");
+#ifdef CONFIG_USB_GADGET_MUSB_HDRC
if (musb->gadget_driver)
pm_runtime_get_sync(musb->controller);
-
+#endif
otg_init(musb->xceiv);
break;
}
musb->dev.parent = &pdev->dev;
+ musb->dev.dma_mask = pdev->dev.dma_mask;
+ musb->dev.coherent_dma_mask = pdev->dev.coherent_dma_mask;
glue->dev = &pdev->dev;
glue->musb = musb;
* /sys/bus/usb/ftdi_sio/new_id, then send patch/report!
*/
static struct usb_device_id id_table_combined [] = {
+ { USB_DEVICE(FTDI_VID, FTDI_CTI_MINI_PID) },
+ { USB_DEVICE(FTDI_VID, FTDI_CTI_NANO_PID) },
{ USB_DEVICE(FTDI_VID, FTDI_AMC232_PID) },
{ USB_DEVICE(FTDI_VID, FTDI_CANUSB_PID) },
{ USB_DEVICE(FTDI_VID, FTDI_CANDAPTER_PID) },
{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_8_PID) },
{ USB_DEVICE(IDTECH_VID, IDTECH_IDT1221U_PID) },
{ USB_DEVICE(OCT_VID, OCT_US101_PID) },
+ { USB_DEVICE(OCT_VID, OCT_DK201_PID) },
{ USB_DEVICE(FTDI_VID, FTDI_HE_TIRA1_PID),
.driver_info = (kernel_ulong_t)&ftdi_HE_TIRA1_quirk },
{ USB_DEVICE(FTDI_VID, FTDI_USB_UIRT_PID),
{ USB_DEVICE(FTDI_VID, MARVELL_OPENRD_PID),
.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
{ USB_DEVICE(FTDI_VID, HAMEG_HO820_PID) },
+ { USB_DEVICE(FTDI_VID, HAMEG_HO720_PID) },
+ { USB_DEVICE(FTDI_VID, HAMEG_HO730_PID) },
{ USB_DEVICE(FTDI_VID, HAMEG_HO870_PID) },
{ USB_DEVICE(FTDI_VID, MJSG_GENERIC_PID) },
{ USB_DEVICE(FTDI_VID, MJSG_SR_RADIO_PID) },
* Hameg HO820 and HO870 interface (using VID 0x0403)
*/
#define HAMEG_HO820_PID 0xed74
+#define HAMEG_HO730_PID 0xed73
+#define HAMEG_HO720_PID 0xed72
#define HAMEG_HO870_PID 0xed71
/*
/* Note: OCT US101 is also rebadged as Dick Smith Electronics (NZ) XH6381 */
/* Also rebadged as Dick Smith Electronics (Aus) XH6451 */
/* Also rebadged as SIIG Inc. model US2308 hardware version 1 */
+#define OCT_DK201_PID 0x0103 /* OCT DK201 USB docking station */
#define OCT_US101_PID 0x0421 /* OCT US101 USB to RS-232 */
/*
#define QIHARDWARE_VID 0x20B7
#define MILKYMISTONE_JTAGSERIAL_PID 0x0713
+/*
+ * CTI GmbH RS485 Converter http://www.cti-lean.com/
+ */
+/* USB-485-Mini*/
+#define FTDI_CTI_MINI_PID 0xF608
+/* USB-Nano-485*/
+#define FTDI_CTI_NANO_PID 0xF60B
+
+
/* ONDA MT825UP HSDPA 14.2 modem */
#define ONDA_MT825UP 0x000b
+/* Samsung products */
+#define SAMSUNG_VENDOR_ID 0x04e8
+#define SAMSUNG_PRODUCT_GT_B3730 0x6889
+
/* some devices interfaces need special handling due to a number of reasons */
enum option_blacklist_reason {
OPTION_BLACKLIST_NONE = 0,
{ USB_DEVICE(OLIVETTI_VENDOR_ID, OLIVETTI_PRODUCT_OLICARD100) },
{ USB_DEVICE(CELOT_VENDOR_ID, CELOT_PRODUCT_CT680M) }, /* CT-650 CDMA 450 1xEVDO modem */
{ USB_DEVICE(ONDA_VENDOR_ID, ONDA_MT825UP) }, /* ONDA MT825UP modem */
+ { USB_DEVICE_AND_INTERFACE_INFO(SAMSUNG_VENDOR_ID, SAMSUNG_PRODUCT_GT_B3730, USB_CLASS_CDC_DATA, 0x00, 0x00) }, /* Samsung GT-B3730/GT-B3710 LTE USB modem.*/
{ } /* Terminating entry */
};
MODULE_DEVICE_TABLE(usb, option_ids);
ifnum = intf->desc.bInterfaceNumber;
dbg("This Interface = %d", ifnum);
- data = serial->private = kzalloc(sizeof(struct usb_wwan_intf_private),
+ data = kzalloc(sizeof(struct usb_wwan_intf_private),
GFP_KERNEL);
if (!data)
return -ENOMEM;
usb_endpoint_is_bulk_out(&intf->endpoint[1].desc)) {
dbg("QDL port found");
- if (serial->interface->num_altsetting == 1)
- return 0;
+ if (serial->interface->num_altsetting == 1) {
+ retval = 0; /* Success */
+ break;
+ }
retval = usb_set_interface(serial->dev, ifnum, 1);
if (retval < 0) {
retval = -ENODEV;
kfree(data);
}
- return retval;
}
break;
"Could not set interface, error %d\n",
retval);
retval = -ENODEV;
+ kfree(data);
}
} else if (ifnum == 2) {
dbg("Modem port found");
retval = -ENODEV;
kfree(data);
}
- return retval;
} else if (ifnum==3) {
/*
* NMEA (serial line 9600 8N1)
"Could not set interface, error %d\n",
retval);
retval = -ENODEV;
+ kfree(data);
}
}
break;
dev_err(&serial->dev->dev,
"unknown number of interfaces: %d\n", nintf);
kfree(data);
- return -ENODEV;
+ retval = -ENODEV;
}
+ /* Set serial->private if not returning -ENODEV */
+ if (retval != -ENODEV)
+ usb_set_serial_data(serial, data);
return retval;
}
+static void qc_release(struct usb_serial *serial)
+{
+ struct usb_wwan_intf_private *priv = usb_get_serial_data(serial);
+
+ dbg("%s", __func__);
+
+ /* Call usb_wwan release & free the private data allocated in qcprobe */
+ usb_wwan_release(serial);
+ usb_set_serial_data(serial, NULL);
+ kfree(priv);
+}
+
static struct usb_serial_driver qcdevice = {
.driver = {
.owner = THIS_MODULE,
.chars_in_buffer = usb_wwan_chars_in_buffer,
.attach = usb_wwan_startup,
.disconnect = usb_wwan_disconnect,
- .release = usb_wwan_release,
+ .release = qc_release,
#ifdef CONFIG_PM
.suspend = usb_wwan_suspend,
.resume = usb_wwan_resume,
switch (val) {
case CPUFREQ_PRECHANGE:
- if (!fbi->overlay[0].usage && !fbi->overlay[1].usage)
+#ifdef CONFIG_FB_PXA_OVERLAY
+ if (!(fbi->overlay[0].usage || fbi->overlay[1].usage))
+#endif
set_ctrlr_state(fbi, C_DISABLE_CLKCHANGE);
break;
unsigned long irqflags,
const char *devname, void *dev_id)
{
- unsigned int irq;
- int retval;
+ int irq, retval;
irq = bind_evtchn_to_irq(evtchn);
if (irq < 0)
irq_handler_t handler,
unsigned long irqflags, const char *devname, void *dev_id)
{
- unsigned int irq;
- int retval;
+ int irq, retval;
irq = bind_virq_to_irq(virq, cpu);
if (irq < 0)
xen_mm_unpin_all();
}
-#ifdef CONFIG_HIBERNATION
+#ifdef CONFIG_HIBERNATE_CALLBACKS
static int xen_suspend(void *data)
{
struct suspend_info *si = data;
#endif
shutting_down = SHUTDOWN_INVALID;
}
-#endif /* CONFIG_HIBERNATION */
+#endif /* CONFIG_HIBERNATE_CALLBACKS */
struct shutdown_handler {
const char *command;
{ "poweroff", do_poweroff },
{ "halt", do_poweroff },
{ "reboot", do_reboot },
-#ifdef CONFIG_HIBERNATION
+#ifdef CONFIG_HIBERNATE_CALLBACKS
{ "suspend", do_suspend },
#endif
{NULL, NULL},
struct p9_fid *v9fs_writeback_fid(struct dentry *dentry)
{
- int err, flags;
+ int err;
struct p9_fid *fid;
- struct v9fs_session_info *v9ses;
- v9ses = v9fs_dentry2v9ses(dentry);
fid = v9fs_fid_clone_with_uid(dentry, 0);
if (IS_ERR(fid))
goto error_out;
* dirty pages. We always request for the open fid in read-write
* mode so that a partial page write which result in page
* read can work.
- *
- * we don't have a tsyncfs operation for older version
- * of protocol. So make sure the write back fid is
- * opened in O_SYNC mode.
*/
- if (!v9fs_proto_dotl(v9ses))
- flags = O_RDWR | O_SYNC;
- else
- flags = O_RDWR;
-
- err = p9_client_open(fid, flags);
+ err = p9_client_open(fid, O_RDWR);
if (err < 0) {
p9_client_clunk(fid);
fid = ERR_PTR(err);
struct list_head slist; /* list of sessions registered with v9fs */
struct backing_dev_info bdi;
struct rw_semaphore rename_sem;
- struct p9_fid *root_fid; /* Used for file system sync */
};
/* cache_validity flags */
retval = v9fs_refresh_inode_dotl(fid, inode);
else
retval = v9fs_refresh_inode(fid, inode);
- if (retval <= 0)
+ if (retval == -ENOENT)
+ return 0;
+ if (retval < 0)
return retval;
}
out_valid:
fid = v9fs_fid_lookup(dentry);
if (IS_ERR(fid)) {
__putname(link);
- link = ERR_PTR(PTR_ERR(fid));
+ link = ERR_CAST(fid);
goto ndset;
}
retval = p9_client_readlink(fid, &target);
retval = PTR_ERR(inode);
goto release_sb;
}
+
root = d_alloc_root(inode);
if (!root) {
iput(inode);
p9stat_free(st);
kfree(st);
}
- v9fs_fid_add(root, fid);
retval = v9fs_get_acl(inode, fid);
if (retval)
goto release_sb;
- /*
- * Add the root fid to session info. This is used
- * for file system sync. We want a cloned fid here
- * so that we can do a sync_filesystem after a
- * shrink_dcache_for_umount
- */
- v9ses->root_fid = v9fs_fid_clone(root);
- if (IS_ERR(v9ses->root_fid)) {
- retval = PTR_ERR(v9ses->root_fid);
- goto release_sb;
- }
+ v9fs_fid_add(root, fid);
P9_DPRINTK(P9_DEBUG_VFS, " simple set mount, return 0\n");
return dget(sb->s_root);
v9fs_session_close(v9ses);
kfree(v9ses);
return ERR_PTR(retval);
+
release_sb:
/*
- * we will do the session_close and root dentry
- * release in the below call.
+ * we will do the session_close and root dentry release
+ * in the below call. But we need to clunk fid, because we haven't
+ * attached the fid to dentry so it won't get clunked
+ * automatically.
*/
+ p9_client_clunk(fid);
deactivate_locked_super(sb);
return ERR_PTR(retval);
}
P9_DPRINTK(P9_DEBUG_VFS, " %p\n", s);
kill_anon_super(s);
- p9_client_clunk(v9ses->root_fid);
+
v9fs_session_cancel(v9ses);
v9fs_session_close(v9ses);
kfree(v9ses);
return res;
}
-static int v9fs_sync_fs(struct super_block *sb, int wait)
-{
- struct v9fs_session_info *v9ses = sb->s_fs_info;
-
- P9_DPRINTK(P9_DEBUG_VFS, "v9fs_sync_fs: super_block %p\n", sb);
- return p9_client_sync_fs(v9ses->root_fid);
-}
-
static int v9fs_drop_inode(struct inode *inode)
{
struct v9fs_session_info *v9ses;
return 1;
}
+static int v9fs_write_inode(struct inode *inode,
+ struct writeback_control *wbc)
+{
+ int ret;
+ struct p9_wstat wstat;
+ struct v9fs_inode *v9inode;
+ /*
+ * send an fsync request to server irrespective of
+ * wbc->sync_mode.
+ */
+ P9_DPRINTK(P9_DEBUG_VFS, "%s: inode %p\n", __func__, inode);
+ v9inode = V9FS_I(inode);
+ if (!v9inode->writeback_fid)
+ return 0;
+ v9fs_blank_wstat(&wstat);
+
+ ret = p9_client_wstat(v9inode->writeback_fid, &wstat);
+ if (ret < 0) {
+ __mark_inode_dirty(inode, I_DIRTY_DATASYNC);
+ return ret;
+ }
+ return 0;
+}
+
+static int v9fs_write_inode_dotl(struct inode *inode,
+ struct writeback_control *wbc)
+{
+ int ret;
+ struct v9fs_inode *v9inode;
+ /*
+ * send an fsync request to server irrespective of
+ * wbc->sync_mode.
+ */
+ P9_DPRINTK(P9_DEBUG_VFS, "%s: inode %p\n", __func__, inode);
+ v9inode = V9FS_I(inode);
+ if (!v9inode->writeback_fid)
+ return 0;
+ ret = p9_client_fsync(v9inode->writeback_fid, 0);
+ if (ret < 0) {
+ __mark_inode_dirty(inode, I_DIRTY_DATASYNC);
+ return ret;
+ }
+ return 0;
+}
+
static const struct super_operations v9fs_super_ops = {
.alloc_inode = v9fs_alloc_inode,
.destroy_inode = v9fs_destroy_inode,
.evict_inode = v9fs_evict_inode,
.show_options = generic_show_options,
.umount_begin = v9fs_umount_begin,
+ .write_inode = v9fs_write_inode,
};
static const struct super_operations v9fs_super_ops_dotl = {
.alloc_inode = v9fs_alloc_inode,
.destroy_inode = v9fs_destroy_inode,
- .sync_fs = v9fs_sync_fs,
.statfs = v9fs_statfs,
.drop_inode = v9fs_drop_inode,
.evict_inode = v9fs_evict_inode,
.show_options = generic_show_options,
.umount_begin = v9fs_umount_begin,
+ .write_inode = v9fs_write_inode_dotl,
};
struct file_system_type v9fs_fs_type = {
current->mm->start_stack = bprm->p;
#ifdef arch_randomize_brk
- if ((current->flags & PF_RANDOMIZE) && (randomize_va_space > 1))
+ if ((current->flags & PF_RANDOMIZE) && (randomize_va_space > 1)) {
current->mm->brk = current->mm->start_brk =
arch_randomize_brk(current->mm);
+#ifdef CONFIG_COMPAT_BRK
+ current->brk_randomized = 1;
+#endif
+ }
#endif
if (current->personality & MMAP_PAGE_ZERO) {
if (value) {
acl = posix_acl_from_xattr(value, size);
- if (acl == NULL) {
- value = NULL;
- size = 0;
+ if (acl) {
+ ret = posix_acl_valid(acl);
+ if (ret)
+ goto out;
} else if (IS_ERR(acl)) {
return PTR_ERR(acl);
}
}
ret = btrfs_set_acl(NULL, dentry->d_inode, acl, type);
-
+out:
posix_acl_release(acl);
return ret;
*/
unsigned long reservation_progress;
- int full; /* indicates that we cannot allocate any more
+ int full:1; /* indicates that we cannot allocate any more
chunks for this space */
+ int chunk_alloc:1; /* set if we are allocating a chunk */
+
int force_alloc; /* set if we need to force a chunk alloc for
this space */
int btrfs_mark_extent_written(struct btrfs_trans_handle *trans,
struct inode *inode, u64 start, u64 end);
int btrfs_release_file(struct inode *inode, struct file *file);
+void btrfs_drop_pages(struct page **pages, size_t num_pages);
+int btrfs_dirty_pages(struct btrfs_root *root, struct inode *inode,
+ struct page **pages, size_t num_pages,
+ loff_t pos, size_t write_bytes,
+ struct extent_state **cached);
/* tree-defrag.c */
int btrfs_defrag_leaves(struct btrfs_trans_handle *trans,
btrfs_destroy_pinned_extent(root,
root->fs_info->pinned_extents);
- t->use_count = 0;
+ atomic_set(&t->use_count, 0);
list_del_init(&t->list);
memset(t, 0, sizeof(*t));
kmem_cache_free(btrfs_transaction_cachep, t);
#include "locking.h"
#include "free-space-cache.h"
+/* control flags for do_chunk_alloc's force field
+ * CHUNK_ALLOC_NO_FORCE means to only allocate a chunk
+ * if we really need one.
+ *
+ * CHUNK_ALLOC_FORCE means it must try to allocate one
+ *
+ * CHUNK_ALLOC_LIMITED means to only try and allocate one
+ * if we have very few chunks already allocated. This is
+ * used as part of the clustering code to help make sure
+ * we have a good pool of storage to cluster in, without
+ * filling the FS with empty chunks
+ *
+ */
+enum {
+ CHUNK_ALLOC_NO_FORCE = 0,
+ CHUNK_ALLOC_FORCE = 1,
+ CHUNK_ALLOC_LIMITED = 2,
+};
+
static int update_block_group(struct btrfs_trans_handle *trans,
struct btrfs_root *root,
u64 bytenr, u64 num_bytes, int alloc);
found->bytes_readonly = 0;
found->bytes_may_use = 0;
found->full = 0;
- found->force_alloc = 0;
+ found->force_alloc = CHUNK_ALLOC_NO_FORCE;
+ found->chunk_alloc = 0;
*space_info = found;
list_add_rcu(&found->list, &info->space_info);
atomic_set(&found->caching_threads, 0);
if (!data_sinfo->full && alloc_chunk) {
u64 alloc_target;
- data_sinfo->force_alloc = 1;
+ data_sinfo->force_alloc = CHUNK_ALLOC_FORCE;
spin_unlock(&data_sinfo->lock);
alloc:
alloc_target = btrfs_get_alloc_profile(root, 1);
ret = do_chunk_alloc(trans, root->fs_info->extent_root,
bytes + 2 * 1024 * 1024,
- alloc_target, 0);
+ alloc_target,
+ CHUNK_ALLOC_NO_FORCE);
btrfs_end_transaction(trans, root);
if (ret < 0) {
if (ret != -ENOSPC)
rcu_read_lock();
list_for_each_entry_rcu(found, head, list) {
if (found->flags & BTRFS_BLOCK_GROUP_METADATA)
- found->force_alloc = 1;
+ found->force_alloc = CHUNK_ALLOC_FORCE;
}
rcu_read_unlock();
}
static int should_alloc_chunk(struct btrfs_root *root,
- struct btrfs_space_info *sinfo, u64 alloc_bytes)
+ struct btrfs_space_info *sinfo, u64 alloc_bytes,
+ int force)
{
u64 num_bytes = sinfo->total_bytes - sinfo->bytes_readonly;
+ u64 num_allocated = sinfo->bytes_used + sinfo->bytes_reserved;
u64 thresh;
- if (sinfo->bytes_used + sinfo->bytes_reserved +
- alloc_bytes + 256 * 1024 * 1024 < num_bytes)
+ if (force == CHUNK_ALLOC_FORCE)
+ return 1;
+
+ /*
+ * in limited mode, we want to have some free space up to
+ * about 1% of the FS size.
+ */
+ if (force == CHUNK_ALLOC_LIMITED) {
+ thresh = btrfs_super_total_bytes(&root->fs_info->super_copy);
+ thresh = max_t(u64, 64 * 1024 * 1024,
+ div_factor_fine(thresh, 1));
+
+ if (num_bytes - num_allocated < thresh)
+ return 1;
+ }
+
+ /*
+ * we have two similar checks here, one based on percentage
+ * and once based on a hard number of 256MB. The idea
+ * is that if we have a good amount of free
+ * room, don't allocate a chunk. A good mount is
+ * less than 80% utilized of the chunks we have allocated,
+ * or more than 256MB free
+ */
+ if (num_allocated + alloc_bytes + 256 * 1024 * 1024 < num_bytes)
return 0;
- if (sinfo->bytes_used + sinfo->bytes_reserved +
- alloc_bytes < div_factor(num_bytes, 8))
+ if (num_allocated + alloc_bytes < div_factor(num_bytes, 8))
return 0;
thresh = btrfs_super_total_bytes(&root->fs_info->super_copy);
+
+ /* 256MB or 5% of the FS */
thresh = max_t(u64, 256 * 1024 * 1024, div_factor_fine(thresh, 5));
if (num_bytes > thresh && sinfo->bytes_used < div_factor(num_bytes, 3))
return 0;
-
return 1;
}
{
struct btrfs_space_info *space_info;
struct btrfs_fs_info *fs_info = extent_root->fs_info;
+ int wait_for_alloc = 0;
int ret = 0;
- mutex_lock(&fs_info->chunk_mutex);
-
flags = btrfs_reduce_alloc_profile(extent_root, flags);
space_info = __find_space_info(extent_root->fs_info, flags);
}
BUG_ON(!space_info);
+again:
spin_lock(&space_info->lock);
if (space_info->force_alloc)
- force = 1;
+ force = space_info->force_alloc;
if (space_info->full) {
spin_unlock(&space_info->lock);
- goto out;
+ return 0;
}
- if (!force && !should_alloc_chunk(extent_root, space_info,
- alloc_bytes)) {
+ if (!should_alloc_chunk(extent_root, space_info, alloc_bytes, force)) {
spin_unlock(&space_info->lock);
- goto out;
+ return 0;
+ } else if (space_info->chunk_alloc) {
+ wait_for_alloc = 1;
+ } else {
+ space_info->chunk_alloc = 1;
}
+
spin_unlock(&space_info->lock);
+ mutex_lock(&fs_info->chunk_mutex);
+
+ /*
+ * The chunk_mutex is held throughout the entirety of a chunk
+ * allocation, so once we've acquired the chunk_mutex we know that the
+ * other guy is done and we need to recheck and see if we should
+ * allocate.
+ */
+ if (wait_for_alloc) {
+ mutex_unlock(&fs_info->chunk_mutex);
+ wait_for_alloc = 0;
+ goto again;
+ }
+
/*
* If we have mixed data/metadata chunks we want to make sure we keep
* allocating mixed chunks instead of individual chunks.
space_info->full = 1;
else
ret = 1;
- space_info->force_alloc = 0;
+
+ space_info->force_alloc = CHUNK_ALLOC_NO_FORCE;
+ space_info->chunk_alloc = 0;
spin_unlock(&space_info->lock);
-out:
mutex_unlock(&extent_root->fs_info->chunk_mutex);
return ret;
}
if (allowed_chunk_alloc) {
ret = do_chunk_alloc(trans, root, num_bytes +
- 2 * 1024 * 1024, data, 1);
+ 2 * 1024 * 1024, data,
+ CHUNK_ALLOC_LIMITED);
allowed_chunk_alloc = 0;
done_chunk_alloc = 1;
- } else if (!done_chunk_alloc) {
- space_info->force_alloc = 1;
+ } else if (!done_chunk_alloc &&
+ space_info->force_alloc == CHUNK_ALLOC_NO_FORCE) {
+ space_info->force_alloc = CHUNK_ALLOC_LIMITED;
}
if (loop < LOOP_NO_EMPTY_SIZE) {
*/
if (empty_size || root->ref_cows)
ret = do_chunk_alloc(trans, root->fs_info->extent_root,
- num_bytes + 2 * 1024 * 1024, data, 0);
+ num_bytes + 2 * 1024 * 1024, data,
+ CHUNK_ALLOC_NO_FORCE);
WARN_ON(num_bytes < root->sectorsize);
ret = find_free_extent(trans, root, num_bytes, empty_size,
num_bytes = num_bytes & ~(root->sectorsize - 1);
num_bytes = max(num_bytes, min_alloc_size);
do_chunk_alloc(trans, root->fs_info->extent_root,
- num_bytes, data, 1);
+ num_bytes, data, CHUNK_ALLOC_FORCE);
goto again;
}
if (ret == -ENOSPC && btrfs_test_opt(root, ENOSPC_DEBUG)) {
alloc_flags = update_block_group_flags(root, cache->flags);
if (alloc_flags != cache->flags)
- do_chunk_alloc(trans, root, 2 * 1024 * 1024, alloc_flags, 1);
+ do_chunk_alloc(trans, root, 2 * 1024 * 1024, alloc_flags,
+ CHUNK_ALLOC_FORCE);
ret = set_block_group_ro(cache);
if (!ret)
goto out;
alloc_flags = get_alloc_profile(root, cache->space_info->flags);
- ret = do_chunk_alloc(trans, root, 2 * 1024 * 1024, alloc_flags, 1);
+ ret = do_chunk_alloc(trans, root, 2 * 1024 * 1024, alloc_flags,
+ CHUNK_ALLOC_FORCE);
if (ret < 0)
goto out;
ret = set_block_group_ro(cache);
struct btrfs_root *root, u64 type)
{
u64 alloc_flags = get_alloc_profile(root, type);
- return do_chunk_alloc(trans, root, 2 * 1024 * 1024, alloc_flags, 1);
+ return do_chunk_alloc(trans, root, 2 * 1024 * 1024, alloc_flags,
+ CHUNK_ALLOC_FORCE);
}
/*
}
}
+static void uncache_state(struct extent_state **cached_ptr)
+{
+ if (cached_ptr && (*cached_ptr)) {
+ struct extent_state *state = *cached_ptr;
+ *cached_ptr = NULL;
+ free_extent_state(state);
+ }
+}
+
/*
* set some bits on a range in the tree. This may require allocations or
* sleeping, so the gfp mask is used to indicate what is allowed.
}
int set_extent_uptodate(struct extent_io_tree *tree, u64 start, u64 end,
- gfp_t mask)
+ struct extent_state **cached_state, gfp_t mask)
{
- return set_extent_bit(tree, start, end, EXTENT_UPTODATE, 0, NULL,
- NULL, mask);
+ return set_extent_bit(tree, start, end, EXTENT_UPTODATE, 0,
+ NULL, cached_state, mask);
}
static int clear_extent_uptodate(struct extent_io_tree *tree, u64 start,
mask);
}
-int unlock_extent(struct extent_io_tree *tree, u64 start, u64 end,
- gfp_t mask)
+int unlock_extent(struct extent_io_tree *tree, u64 start, u64 end, gfp_t mask)
{
return clear_extent_bit(tree, start, end, EXTENT_LOCKED, 1, 0, NULL,
mask);
do {
struct page *page = bvec->bv_page;
+ struct extent_state *cached = NULL;
+ struct extent_state *state;
+
tree = &BTRFS_I(page->mapping->host)->io_tree;
start = ((u64)page->index << PAGE_CACHE_SHIFT) +
if (++bvec <= bvec_end)
prefetchw(&bvec->bv_page->flags);
+ spin_lock(&tree->lock);
+ state = find_first_extent_bit_state(tree, start, EXTENT_LOCKED);
+ if (state && state->start == start) {
+ /*
+ * take a reference on the state, unlock will drop
+ * the ref
+ */
+ cache_state(state, &cached);
+ }
+ spin_unlock(&tree->lock);
+
if (uptodate && tree->ops && tree->ops->readpage_end_io_hook) {
ret = tree->ops->readpage_end_io_hook(page, start, end,
- NULL);
+ state);
if (ret)
uptodate = 0;
}
test_bit(BIO_UPTODATE, &bio->bi_flags);
if (err)
uptodate = 0;
+ uncache_state(&cached);
continue;
}
}
if (uptodate) {
- set_extent_uptodate(tree, start, end,
+ set_extent_uptodate(tree, start, end, &cached,
GFP_ATOMIC);
}
- unlock_extent(tree, start, end, GFP_ATOMIC);
+ unlock_extent_cached(tree, start, end, &cached, GFP_ATOMIC);
if (whole_page) {
if (uptodate) {
do {
struct page *page = bvec->bv_page;
+ struct extent_state *cached = NULL;
tree = &BTRFS_I(page->mapping->host)->io_tree;
start = ((u64)page->index << PAGE_CACHE_SHIFT) +
prefetchw(&bvec->bv_page->flags);
if (uptodate) {
- set_extent_uptodate(tree, start, end, GFP_ATOMIC);
+ set_extent_uptodate(tree, start, end, &cached,
+ GFP_ATOMIC);
} else {
ClearPageUptodate(page);
SetPageError(page);
}
- unlock_extent(tree, start, end, GFP_ATOMIC);
+ unlock_extent_cached(tree, start, end, &cached, GFP_ATOMIC);
} while (bvec >= bio->bi_io_vec);
while (cur <= end) {
if (cur >= last_byte) {
char *userpage;
+ struct extent_state *cached = NULL;
+
iosize = PAGE_CACHE_SIZE - page_offset;
userpage = kmap_atomic(page, KM_USER0);
memset(userpage + page_offset, 0, iosize);
flush_dcache_page(page);
kunmap_atomic(userpage, KM_USER0);
set_extent_uptodate(tree, cur, cur + iosize - 1,
- GFP_NOFS);
- unlock_extent(tree, cur, cur + iosize - 1, GFP_NOFS);
+ &cached, GFP_NOFS);
+ unlock_extent_cached(tree, cur, cur + iosize - 1,
+ &cached, GFP_NOFS);
break;
}
em = get_extent(inode, page, page_offset, cur,
/* we've found a hole, just zero and go on */
if (block_start == EXTENT_MAP_HOLE) {
char *userpage;
+ struct extent_state *cached = NULL;
+
userpage = kmap_atomic(page, KM_USER0);
memset(userpage + page_offset, 0, iosize);
flush_dcache_page(page);
kunmap_atomic(userpage, KM_USER0);
set_extent_uptodate(tree, cur, cur + iosize - 1,
- GFP_NOFS);
- unlock_extent(tree, cur, cur + iosize - 1, GFP_NOFS);
+ &cached, GFP_NOFS);
+ unlock_extent_cached(tree, cur, cur + iosize - 1,
+ &cached, GFP_NOFS);
cur = cur + iosize;
page_offset += iosize;
continue;
iocount++;
block_start = block_start + iosize;
} else {
- set_extent_uptodate(tree, block_start, cur_end,
+ struct extent_state *cached = NULL;
+
+ set_extent_uptodate(tree, block_start, cur_end, &cached,
GFP_NOFS);
- unlock_extent(tree, block_start, cur_end, GFP_NOFS);
+ unlock_extent_cached(tree, block_start, cur_end,
+ &cached, GFP_NOFS);
block_start = cur_end + 1;
}
page_offset = block_start & (PAGE_CACHE_SIZE - 1);
num_pages = num_extent_pages(eb->start, eb->len);
set_extent_uptodate(tree, eb->start, eb->start + eb->len - 1,
- GFP_NOFS);
+ NULL, GFP_NOFS);
for (i = 0; i < num_pages; i++) {
page = extent_buffer_page(eb, i);
if ((i == 0 && (eb->start & (PAGE_CACHE_SIZE - 1))) ||
kunmap_atomic(dst_kaddr, KM_USER0);
}
+static inline bool areas_overlap(unsigned long src, unsigned long dst, unsigned long len)
+{
+ unsigned long distance = (src > dst) ? src - dst : dst - src;
+ return distance < len;
+}
+
static void copy_pages(struct page *dst_page, struct page *src_page,
unsigned long dst_off, unsigned long src_off,
unsigned long len)
char *dst_kaddr = kmap_atomic(dst_page, KM_USER0);
char *src_kaddr;
- if (dst_page != src_page)
+ if (dst_page != src_page) {
src_kaddr = kmap_atomic(src_page, KM_USER1);
- else
+ } else {
src_kaddr = dst_kaddr;
+ BUG_ON(areas_overlap(src_off, dst_off, len));
+ }
memcpy(dst_kaddr + dst_off, src_kaddr + src_off, len);
kunmap_atomic(dst_kaddr, KM_USER0);
"len %lu len %lu\n", dst_offset, len, dst->len);
BUG_ON(1);
}
- if (dst_offset < src_offset) {
+ if (!areas_overlap(src_offset, dst_offset, len)) {
memcpy_extent_buffer(dst, dst_offset, src_offset, len);
return;
}
int bits, int exclusive_bits, u64 *failed_start,
struct extent_state **cached_state, gfp_t mask);
int set_extent_uptodate(struct extent_io_tree *tree, u64 start, u64 end,
- gfp_t mask);
+ struct extent_state **cached_state, gfp_t mask);
int set_extent_new(struct extent_io_tree *tree, u64 start, u64 end,
gfp_t mask);
int set_extent_dirty(struct extent_io_tree *tree, u64 start, u64 end,
/*
* unlocks pages after btrfs_file_write is done with them
*/
-static noinline void btrfs_drop_pages(struct page **pages, size_t num_pages)
+void btrfs_drop_pages(struct page **pages, size_t num_pages)
{
size_t i;
for (i = 0; i < num_pages; i++) {
* this also makes the decision about creating an inline extent vs
* doing real data extents, marking pages dirty and delalloc as required.
*/
-static noinline int dirty_and_release_pages(struct btrfs_root *root,
- struct file *file,
- struct page **pages,
- size_t num_pages,
- loff_t pos,
- size_t write_bytes)
+int btrfs_dirty_pages(struct btrfs_root *root, struct inode *inode,
+ struct page **pages, size_t num_pages,
+ loff_t pos, size_t write_bytes,
+ struct extent_state **cached)
{
int err = 0;
int i;
- struct inode *inode = fdentry(file)->d_inode;
u64 num_bytes;
u64 start_pos;
u64 end_of_last_block;
end_of_last_block = start_pos + num_bytes - 1;
err = btrfs_set_extent_delalloc(inode, start_pos, end_of_last_block,
- NULL);
+ cached);
if (err)
return err;
}
if (copied > 0) {
- ret = dirty_and_release_pages(root, file, pages,
- dirty_pages, pos,
- copied);
+ ret = btrfs_dirty_pages(root, inode, pages,
+ dirty_pages, pos, copied,
+ NULL);
if (ret) {
btrfs_delalloc_release_space(inode,
dirty_pages << PAGE_CACHE_SHIFT);
struct inode *inode;
struct rb_node *node;
struct list_head *pos, *n;
+ struct page **pages;
struct page *page;
struct extent_state *cached_state = NULL;
struct btrfs_free_cluster *cluster = NULL;
u64 start, end, len;
u64 bytes = 0;
u32 *crc, *checksums;
- pgoff_t index = 0, last_index = 0;
unsigned long first_page_offset;
- int num_checksums;
+ int index = 0, num_pages = 0;
int entries = 0;
int bitmaps = 0;
int ret = 0;
bool next_page = false;
+ bool out_of_space = false;
root = root->fs_info->tree_root;
return 0;
}
- last_index = (i_size_read(inode) - 1) >> PAGE_CACHE_SHIFT;
+ num_pages = (i_size_read(inode) + PAGE_CACHE_SIZE - 1) >>
+ PAGE_CACHE_SHIFT;
filemap_write_and_wait(inode->i_mapping);
btrfs_wait_ordered_range(inode, inode->i_size &
~(root->sectorsize - 1), (u64)-1);
/* We need a checksum per page. */
- num_checksums = i_size_read(inode) / PAGE_CACHE_SIZE;
- crc = checksums = kzalloc(sizeof(u32) * num_checksums, GFP_NOFS);
+ crc = checksums = kzalloc(sizeof(u32) * num_pages, GFP_NOFS);
if (!crc) {
iput(inode);
return 0;
}
+ pages = kzalloc(sizeof(struct page *) * num_pages, GFP_NOFS);
+ if (!pages) {
+ kfree(crc);
+ iput(inode);
+ return 0;
+ }
+
/* Since the first page has all of our checksums and our generation we
* need to calculate the offset into the page that we can start writing
* our entries.
*/
- first_page_offset = (sizeof(u32) * num_checksums) + sizeof(u64);
+ first_page_offset = (sizeof(u32) * num_pages) + sizeof(u64);
/* Get the cluster for this block_group if it exists */
if (!list_empty(&block_group->cluster_list))
* after find_get_page at this point. Just putting this here so people
* know and don't freak out.
*/
- while (index <= last_index) {
+ while (index < num_pages) {
page = grab_cache_page(inode->i_mapping, index);
if (!page) {
- pgoff_t i = 0;
+ int i;
- while (i < index) {
- page = find_get_page(inode->i_mapping, i);
- unlock_page(page);
- page_cache_release(page);
- page_cache_release(page);
- i++;
+ for (i = 0; i < num_pages; i++) {
+ unlock_page(pages[i]);
+ page_cache_release(pages[i]);
}
goto out_free;
}
+ pages[index] = page;
index++;
}
offset = start_offset;
}
- page = find_get_page(inode->i_mapping, index);
+ if (index >= num_pages) {
+ out_of_space = true;
+ break;
+ }
+
+ page = pages[index];
addr = kmap(page);
entry = addr + start_offset;
bytes += PAGE_CACHE_SIZE;
- ClearPageChecked(page);
- set_page_extent_mapped(page);
- SetPageUptodate(page);
- set_page_dirty(page);
-
- /*
- * We need to release our reference we got for grab_cache_page,
- * except for the first page which will hold our checksums, we
- * do that below.
- */
- if (index != 0) {
- unlock_page(page);
- page_cache_release(page);
- }
-
- page_cache_release(page);
-
index++;
} while (node || next_page);
struct btrfs_free_space *entry =
list_entry(pos, struct btrfs_free_space, list);
- page = find_get_page(inode->i_mapping, index);
+ if (index >= num_pages) {
+ out_of_space = true;
+ break;
+ }
+ page = pages[index];
addr = kmap(page);
memcpy(addr, entry->bitmap, PAGE_CACHE_SIZE);
crc++;
bytes += PAGE_CACHE_SIZE;
- ClearPageChecked(page);
- set_page_extent_mapped(page);
- SetPageUptodate(page);
- set_page_dirty(page);
- unlock_page(page);
- page_cache_release(page);
- page_cache_release(page);
list_del_init(&entry->list);
index++;
}
+ if (out_of_space) {
+ btrfs_drop_pages(pages, num_pages);
+ unlock_extent_cached(&BTRFS_I(inode)->io_tree, 0,
+ i_size_read(inode) - 1, &cached_state,
+ GFP_NOFS);
+ ret = 0;
+ goto out_free;
+ }
+
/* Zero out the rest of the pages just to make sure */
- while (index <= last_index) {
+ while (index < num_pages) {
void *addr;
- page = find_get_page(inode->i_mapping, index);
-
+ page = pages[index];
addr = kmap(page);
memset(addr, 0, PAGE_CACHE_SIZE);
kunmap(page);
- ClearPageChecked(page);
- set_page_extent_mapped(page);
- SetPageUptodate(page);
- set_page_dirty(page);
- unlock_page(page);
- page_cache_release(page);
- page_cache_release(page);
bytes += PAGE_CACHE_SIZE;
index++;
}
- btrfs_set_extent_delalloc(inode, 0, bytes - 1, &cached_state);
-
/* Write the checksums and trans id to the first page */
{
void *addr;
u64 *gen;
- page = find_get_page(inode->i_mapping, 0);
+ page = pages[0];
addr = kmap(page);
- memcpy(addr, checksums, sizeof(u32) * num_checksums);
- gen = addr + (sizeof(u32) * num_checksums);
+ memcpy(addr, checksums, sizeof(u32) * num_pages);
+ gen = addr + (sizeof(u32) * num_pages);
*gen = trans->transid;
kunmap(page);
- ClearPageChecked(page);
- set_page_extent_mapped(page);
- SetPageUptodate(page);
- set_page_dirty(page);
- unlock_page(page);
- page_cache_release(page);
- page_cache_release(page);
}
- BTRFS_I(inode)->generation = trans->transid;
+ ret = btrfs_dirty_pages(root, inode, pages, num_pages, 0,
+ bytes, &cached_state);
+ btrfs_drop_pages(pages, num_pages);
unlock_extent_cached(&BTRFS_I(inode)->io_tree, 0,
i_size_read(inode) - 1, &cached_state, GFP_NOFS);
+ if (ret) {
+ ret = 0;
+ goto out_free;
+ }
+
+ BTRFS_I(inode)->generation = trans->transid;
+
filemap_write_and_wait(inode->i_mapping);
key.objectid = BTRFS_FREE_SPACE_OBJECTID;
BTRFS_I(inode)->generation = 0;
}
kfree(checksums);
+ kfree(pages);
btrfs_update_inode(trans, root, inode);
iput(inode);
return ret;
add_pending_csums(trans, inode, ordered_extent->file_offset,
&ordered_extent->list);
- btrfs_ordered_update_i_size(inode, 0, ordered_extent);
- ret = btrfs_update_inode(trans, root, inode);
- BUG_ON(ret);
+ ret = btrfs_ordered_update_i_size(inode, 0, ordered_extent);
+ if (!ret) {
+ ret = btrfs_update_inode(trans, root, inode);
+ BUG_ON(ret);
+ }
+ ret = 0;
out:
if (nolock) {
if (trans)
struct btrfs_inode_item *item,
struct inode *inode)
{
+ if (!leaf->map_token)
+ map_private_extent_buffer(leaf, (unsigned long)item,
+ sizeof(struct btrfs_inode_item),
+ &leaf->map_token, &leaf->kaddr,
+ &leaf->map_start, &leaf->map_len,
+ KM_USER1);
+
btrfs_set_inode_uid(leaf, item, inode->i_uid);
btrfs_set_inode_gid(leaf, item, inode->i_gid);
btrfs_set_inode_size(leaf, item, BTRFS_I(inode)->disk_i_size);
btrfs_set_inode_rdev(leaf, item, inode->i_rdev);
btrfs_set_inode_flags(leaf, item, BTRFS_I(inode)->flags);
btrfs_set_inode_block_group(leaf, item, BTRFS_I(inode)->block_group);
+
+ if (leaf->map_token) {
+ unmap_extent_buffer(leaf, leaf->map_token, KM_USER1);
+ leaf->map_token = NULL;
+ }
}
/*
struct btrfs_key found_key;
struct btrfs_path *path;
int ret;
- u32 nritems;
struct extent_buffer *leaf;
int slot;
- int advance;
unsigned char d_type;
int over = 0;
u32 di_cur;
ret = btrfs_search_slot(NULL, root, &key, path, 0, 0);
if (ret < 0)
goto err;
- advance = 0;
while (1) {
leaf = path->nodes[0];
- nritems = btrfs_header_nritems(leaf);
slot = path->slots[0];
- if (advance || slot >= nritems) {
- if (slot >= nritems - 1) {
- ret = btrfs_next_leaf(root, path);
- if (ret)
- break;
- leaf = path->nodes[0];
- nritems = btrfs_header_nritems(leaf);
- slot = path->slots[0];
- } else {
- slot++;
- path->slots[0]++;
- }
+ if (slot >= btrfs_header_nritems(leaf)) {
+ ret = btrfs_next_leaf(root, path);
+ if (ret < 0)
+ goto err;
+ else if (ret > 0)
+ break;
+ continue;
}
- advance = 1;
item = btrfs_item_nr(leaf, slot);
btrfs_item_key_to_cpu(leaf, &found_key, slot);
if (btrfs_key_type(&found_key) != key_type)
break;
if (found_key.offset < filp->f_pos)
- continue;
+ goto next;
filp->f_pos = found_key.offset;
di_cur += di_len;
di = (struct btrfs_dir_item *)((char *)di + di_len);
}
+next:
+ path->slots[0]++;
}
/* Reached end of directory/root. Bump pos past the last item. */
BUG_ON(!path);
inode = new_inode(root->fs_info->sb);
- if (!inode)
+ if (!inode) {
+ btrfs_free_path(path);
return ERR_PTR(-ENOMEM);
+ }
if (dir) {
trace_btrfs_inode_request(dir);
ret = btrfs_set_inode_index(dir, index);
if (ret) {
+ btrfs_free_path(path);
iput(inode);
return ERR_PTR(ret);
}
if (inode->i_nlink == ~0U)
return -EMLINK;
- btrfs_inc_nlink(inode);
- inode->i_ctime = CURRENT_TIME;
-
err = btrfs_set_inode_index(dir, &index);
if (err)
goto fail;
goto fail;
}
+ btrfs_inc_nlink(inode);
+ inode->i_ctime = CURRENT_TIME;
+
btrfs_set_trans_block_group(trans, dir);
ihold(inode);
btrfs_mark_buffer_dirty(leaf);
}
set_extent_uptodate(io_tree, em->start,
- extent_map_end(em) - 1, GFP_NOFS);
+ extent_map_end(em) - 1, NULL, GFP_NOFS);
goto insert;
} else {
printk(KERN_ERR "btrfs unknown found_type %d\n", found_type);
}
static struct extent_map *btrfs_new_extent_direct(struct inode *inode,
+ struct extent_map *em,
u64 start, u64 len)
{
struct btrfs_root *root = BTRFS_I(inode)->root;
struct btrfs_trans_handle *trans;
- struct extent_map *em;
struct extent_map_tree *em_tree = &BTRFS_I(inode)->extent_tree;
struct btrfs_key ins;
u64 alloc_hint;
int ret;
+ bool insert = false;
- btrfs_drop_extent_cache(inode, start, start + len - 1, 0);
+ /*
+ * Ok if the extent map we looked up is a hole and is for the exact
+ * range we want, there is no reason to allocate a new one, however if
+ * it is not right then we need to free this one and drop the cache for
+ * our range.
+ */
+ if (em->block_start != EXTENT_MAP_HOLE || em->start != start ||
+ em->len != len) {
+ free_extent_map(em);
+ em = NULL;
+ insert = true;
+ btrfs_drop_extent_cache(inode, start, start + len - 1, 0);
+ }
trans = btrfs_join_transaction(root, 0);
if (IS_ERR(trans))
goto out;
}
- em = alloc_extent_map(GFP_NOFS);
if (!em) {
- em = ERR_PTR(-ENOMEM);
- goto out;
+ em = alloc_extent_map(GFP_NOFS);
+ if (!em) {
+ em = ERR_PTR(-ENOMEM);
+ goto out;
+ }
}
em->start = start;
em->block_start = ins.objectid;
em->block_len = ins.offset;
em->bdev = root->fs_info->fs_devices->latest_bdev;
+
+ /*
+ * We need to do this because if we're using the original em we searched
+ * for, we could have EXTENT_FLAG_VACANCY set, and we don't want that.
+ */
+ em->flags = 0;
set_bit(EXTENT_FLAG_PINNED, &em->flags);
- while (1) {
+ while (insert) {
write_lock(&em_tree->lock);
ret = add_extent_mapping(em_tree, em);
write_unlock(&em_tree->lock);
* it above
*/
len = bh_result->b_size;
- free_extent_map(em);
- em = btrfs_new_extent_direct(inode, start, len);
+ em = btrfs_new_extent_direct(inode, em, start, len);
if (IS_ERR(em))
return PTR_ERR(em);
len = min(len, em->len - (start - em->start));
}
add_pending_csums(trans, inode, ordered->file_offset, &ordered->list);
- btrfs_ordered_update_i_size(inode, 0, ordered);
- btrfs_update_inode(trans, root, inode);
+ ret = btrfs_ordered_update_i_size(inode, 0, ordered);
+ if (!ret)
+ btrfs_update_inode(trans, root, inode);
+ ret = 0;
out_unlock:
unlock_extent_cached(&BTRFS_I(inode)->io_tree, ordered->file_offset,
ordered->file_offset + ordered->len - 1,
static inline int __btrfs_submit_dio_bio(struct bio *bio, struct inode *inode,
int rw, u64 file_offset, int skip_sum,
- u32 *csums)
+ u32 *csums, int async_submit)
{
int write = rw & REQ_WRITE;
struct btrfs_root *root = BTRFS_I(inode)->root;
if (ret)
goto err;
- if (write && !skip_sum) {
+ if (skip_sum)
+ goto map;
+
+ if (write && async_submit) {
ret = btrfs_wq_submit_bio(root->fs_info,
inode, rw, bio, 0, 0,
file_offset,
__btrfs_submit_bio_start_direct_io,
__btrfs_submit_bio_done);
goto err;
+ } else if (write) {
+ /*
+ * If we aren't doing async submit, calculate the csum of the
+ * bio now.
+ */
+ ret = btrfs_csum_one_bio(root, inode, bio, file_offset, 1);
+ if (ret)
+ goto err;
} else if (!skip_sum) {
ret = btrfs_lookup_bio_sums_dio(root, inode, bio,
file_offset, csums);
goto err;
}
- ret = btrfs_map_bio(root, rw, bio, 0, 1);
+map:
+ ret = btrfs_map_bio(root, rw, bio, 0, async_submit);
err:
bio_put(bio);
return ret;
int nr_pages = 0;
u32 *csums = dip->csums;
int ret = 0;
+ int async_submit = 0;
int write = rw & REQ_WRITE;
- bio = btrfs_dio_bio_alloc(orig_bio->bi_bdev, start_sector, GFP_NOFS);
- if (!bio)
- return -ENOMEM;
- bio->bi_private = dip;
- bio->bi_end_io = btrfs_end_dio_bio;
- atomic_inc(&dip->pending_bios);
-
map_length = orig_bio->bi_size;
ret = btrfs_map_block(map_tree, READ, start_sector << 9,
&map_length, NULL, 0);
return -EIO;
}
+ if (map_length >= orig_bio->bi_size) {
+ bio = orig_bio;
+ goto submit;
+ }
+
+ async_submit = 1;
+ bio = btrfs_dio_bio_alloc(orig_bio->bi_bdev, start_sector, GFP_NOFS);
+ if (!bio)
+ return -ENOMEM;
+ bio->bi_private = dip;
+ bio->bi_end_io = btrfs_end_dio_bio;
+ atomic_inc(&dip->pending_bios);
+
while (bvec <= (orig_bio->bi_io_vec + orig_bio->bi_vcnt - 1)) {
if (unlikely(map_length < submit_len + bvec->bv_len ||
bio_add_page(bio, bvec->bv_page, bvec->bv_len,
atomic_inc(&dip->pending_bios);
ret = __btrfs_submit_dio_bio(bio, inode, rw,
file_offset, skip_sum,
- csums);
+ csums, async_submit);
if (ret) {
bio_put(bio);
atomic_dec(&dip->pending_bios);
}
}
+submit:
ret = __btrfs_submit_dio_bio(bio, inode, rw, file_offset, skip_sum,
- csums);
+ csums, async_submit);
if (!ret)
return 0;
unsigned long nr_segs)
{
int seg;
+ int i;
size_t size;
unsigned long addr;
unsigned blocksize_mask = root->sectorsize - 1;
addr = (unsigned long)iov[seg].iov_base;
size = iov[seg].iov_len;
end += size;
- if ((addr & blocksize_mask) || (size & blocksize_mask))
+ if ((addr & blocksize_mask) || (size & blocksize_mask))
goto out;
+
+ /* If this is a write we don't need to check anymore */
+ if (rw & WRITE)
+ continue;
+
+ /*
+ * Check to make sure we don't have duplicate iov_base's in this
+ * iovec, if so return EINVAL, otherwise we'll get csum errors
+ * when reading back.
+ */
+ for (i = seg + 1; i < nr_segs; i++) {
+ if (iov[seg].iov_base == iov[i].iov_base)
+ goto out;
+ }
}
retval = 0;
out:
struct btrfs_ioctl_space_info space;
struct btrfs_ioctl_space_info *dest;
struct btrfs_ioctl_space_info *dest_orig;
- struct btrfs_ioctl_space_info *user_dest;
+ struct btrfs_ioctl_space_info __user *user_dest;
struct btrfs_space_info *info;
u64 types[] = {BTRFS_BLOCK_GROUP_DATA,
BTRFS_BLOCK_GROUP_SYSTEM,
Opt_compress_type, Opt_compress_force, Opt_compress_force_type,
Opt_notreelog, Opt_ratio, Opt_flushoncommit, Opt_discard,
Opt_space_cache, Opt_clear_cache, Opt_user_subvol_rm_allowed,
- Opt_enospc_debug, Opt_err,
+ Opt_enospc_debug, Opt_subvolrootid, Opt_err,
};
static match_table_t tokens = {
{Opt_clear_cache, "clear_cache"},
{Opt_user_subvol_rm_allowed, "user_subvol_rm_allowed"},
{Opt_enospc_debug, "enospc_debug"},
+ {Opt_subvolrootid, "subvolrootid=%d"},
{Opt_err, NULL},
};
break;
case Opt_subvol:
case Opt_subvolid:
+ case Opt_subvolrootid:
case Opt_device:
/*
* These are parsed by btrfs_parse_early_options
*/
static int btrfs_parse_early_options(const char *options, fmode_t flags,
void *holder, char **subvol_name, u64 *subvol_objectid,
- struct btrfs_fs_devices **fs_devices)
+ u64 *subvol_rootid, struct btrfs_fs_devices **fs_devices)
{
substring_t args[MAX_OPT_ARGS];
char *opts, *orig, *p;
*subvol_objectid = intarg;
}
break;
+ case Opt_subvolrootid:
+ intarg = 0;
+ error = match_int(&args[0], &intarg);
+ if (!error) {
+ /* we want the original fs_tree */
+ if (!intarg)
+ *subvol_rootid =
+ BTRFS_FS_TREE_OBJECTID;
+ else
+ *subvol_rootid = intarg;
+ }
+ break;
case Opt_device:
error = btrfs_scan_one_device(match_strdup(&args[0]),
flags, holder, fs_devices);
fmode_t mode = FMODE_READ;
char *subvol_name = NULL;
u64 subvol_objectid = 0;
+ u64 subvol_rootid = 0;
int error = 0;
if (!(flags & MS_RDONLY))
error = btrfs_parse_early_options(data, mode, fs_type,
&subvol_name, &subvol_objectid,
- &fs_devices);
+ &subvol_rootid, &fs_devices);
if (error)
return ERR_PTR(error);
s->s_flags |= MS_ACTIVE;
}
- root = get_default_root(s, subvol_objectid);
- if (IS_ERR(root)) {
- error = PTR_ERR(root);
- deactivate_locked_super(s);
- goto error_free_subvol_name;
- }
/* if they gave us a subvolume name bind mount into that */
if (strcmp(subvol_name, ".")) {
struct dentry *new_root;
+
+ root = get_default_root(s, subvol_rootid);
+ if (IS_ERR(root)) {
+ error = PTR_ERR(root);
+ deactivate_locked_super(s);
+ goto error_free_subvol_name;
+ }
+
mutex_lock(&root->d_inode->i_mutex);
new_root = lookup_one_len(subvol_name, root,
strlen(subvol_name));
}
dput(root);
root = new_root;
+ } else {
+ root = get_default_root(s, subvol_objectid);
+ if (IS_ERR(root)) {
+ error = PTR_ERR(root);
+ deactivate_locked_super(s);
+ goto error_free_subvol_name;
+ }
}
kfree(subvol_name);
static noinline void put_transaction(struct btrfs_transaction *transaction)
{
- WARN_ON(transaction->use_count == 0);
- transaction->use_count--;
- if (transaction->use_count == 0) {
- list_del_init(&transaction->list);
+ WARN_ON(atomic_read(&transaction->use_count) == 0);
+ if (atomic_dec_and_test(&transaction->use_count)) {
memset(transaction, 0, sizeof(*transaction));
kmem_cache_free(btrfs_transaction_cachep, transaction);
}
if (!cur_trans)
return -ENOMEM;
root->fs_info->generation++;
- cur_trans->num_writers = 1;
+ atomic_set(&cur_trans->num_writers, 1);
cur_trans->num_joined = 0;
cur_trans->transid = root->fs_info->generation;
init_waitqueue_head(&cur_trans->writer_wait);
init_waitqueue_head(&cur_trans->commit_wait);
cur_trans->in_commit = 0;
cur_trans->blocked = 0;
- cur_trans->use_count = 1;
+ atomic_set(&cur_trans->use_count, 1);
cur_trans->commit_done = 0;
cur_trans->start_time = get_seconds();
root->fs_info->running_transaction = cur_trans;
spin_unlock(&root->fs_info->new_trans_lock);
} else {
- cur_trans->num_writers++;
+ atomic_inc(&cur_trans->num_writers);
cur_trans->num_joined++;
}
cur_trans = root->fs_info->running_transaction;
if (cur_trans && cur_trans->blocked) {
DEFINE_WAIT(wait);
- cur_trans->use_count++;
+ atomic_inc(&cur_trans->use_count);
while (1) {
prepare_to_wait(&root->fs_info->transaction_wait, &wait,
TASK_UNINTERRUPTIBLE);
{
struct btrfs_trans_handle *h;
struct btrfs_transaction *cur_trans;
+ int retries = 0;
int ret;
if (root->fs_info->fs_state & BTRFS_SUPER_FLAG_ERROR)
}
cur_trans = root->fs_info->running_transaction;
- cur_trans->use_count++;
+ atomic_inc(&cur_trans->use_count);
if (type != TRANS_JOIN_NOLOCK)
mutex_unlock(&root->fs_info->trans_mutex);
if (num_items > 0) {
ret = btrfs_trans_reserve_metadata(h, root, num_items);
- if (ret == -EAGAIN) {
+ if (ret == -EAGAIN && !retries) {
+ retries++;
btrfs_commit_transaction(h, root);
goto again;
+ } else if (ret == -EAGAIN) {
+ /*
+ * We have already retried and got EAGAIN, so really we
+ * don't have space, so set ret to -ENOSPC.
+ */
+ ret = -ENOSPC;
}
+
if (ret < 0) {
btrfs_end_transaction(h, root);
return ERR_PTR(ret);
goto out_unlock; /* nothing committing|committed */
}
- cur_trans->use_count++;
+ atomic_inc(&cur_trans->use_count);
mutex_unlock(&root->fs_info->trans_mutex);
wait_for_commit(root, cur_trans);
wake_up_process(info->transaction_kthread);
}
- if (lock)
- mutex_lock(&info->trans_mutex);
WARN_ON(cur_trans != info->running_transaction);
- WARN_ON(cur_trans->num_writers < 1);
- cur_trans->num_writers--;
+ WARN_ON(atomic_read(&cur_trans->num_writers) < 1);
+ atomic_dec(&cur_trans->num_writers);
smp_mb();
if (waitqueue_active(&cur_trans->writer_wait))
wake_up(&cur_trans->writer_wait);
put_transaction(cur_trans);
- if (lock)
- mutex_unlock(&info->trans_mutex);
if (current->journal_info == trans)
current->journal_info = NULL;
/* take transaction reference */
mutex_lock(&root->fs_info->trans_mutex);
cur_trans = trans->transaction;
- cur_trans->use_count++;
+ atomic_inc(&cur_trans->use_count);
mutex_unlock(&root->fs_info->trans_mutex);
btrfs_end_transaction(trans, root);
mutex_lock(&root->fs_info->trans_mutex);
if (cur_trans->in_commit) {
- cur_trans->use_count++;
+ atomic_inc(&cur_trans->use_count);
mutex_unlock(&root->fs_info->trans_mutex);
btrfs_end_transaction(trans, root);
prev_trans = list_entry(cur_trans->list.prev,
struct btrfs_transaction, list);
if (!prev_trans->commit_done) {
- prev_trans->use_count++;
+ atomic_inc(&prev_trans->use_count);
mutex_unlock(&root->fs_info->trans_mutex);
wait_for_commit(root, prev_trans);
TASK_UNINTERRUPTIBLE);
smp_mb();
- if (cur_trans->num_writers > 1)
+ if (atomic_read(&cur_trans->num_writers) > 1)
schedule_timeout(MAX_SCHEDULE_TIMEOUT);
else if (should_grow)
schedule_timeout(1);
mutex_lock(&root->fs_info->trans_mutex);
finish_wait(&cur_trans->writer_wait, &wait);
- } while (cur_trans->num_writers > 1 ||
+ } while (atomic_read(&cur_trans->num_writers) > 1 ||
(should_grow && cur_trans->num_joined != joined));
ret = create_pending_snapshots(trans, root->fs_info);
wake_up(&cur_trans->commit_wait);
+ list_del_init(&cur_trans->list);
put_transaction(cur_trans);
put_transaction(cur_trans);
* total writers in this transaction, it must be zero before the
* transaction can end
*/
- unsigned long num_writers;
+ atomic_t num_writers;
unsigned long num_joined;
int in_commit;
- int use_count;
+ atomic_t use_count;
int commit_done;
int blocked;
struct list_head list;
struct btrfs_path *path;
struct extent_buffer *leaf;
struct btrfs_dir_item *di;
- int ret = 0, slot, advance;
+ int ret = 0, slot;
size_t total_size = 0, size_left = size;
unsigned long name_ptr;
size_t name_len;
- u32 nritems;
/*
* ok we want all objects associated with this id.
ret = btrfs_search_slot(NULL, root, &key, path, 0, 0);
if (ret < 0)
goto err;
- advance = 0;
+
while (1) {
leaf = path->nodes[0];
- nritems = btrfs_header_nritems(leaf);
slot = path->slots[0];
/* this is where we start walking through the path */
- if (advance || slot >= nritems) {
+ if (slot >= btrfs_header_nritems(leaf)) {
/*
* if we've reached the last slot in this leaf we need
* to go to the next leaf and reset everything
*/
- if (slot >= nritems-1) {
- ret = btrfs_next_leaf(root, path);
- if (ret)
- break;
- leaf = path->nodes[0];
- nritems = btrfs_header_nritems(leaf);
- slot = path->slots[0];
- } else {
- /*
- * just walking through the slots on this leaf
- */
- slot++;
- path->slots[0]++;
- }
+ ret = btrfs_next_leaf(root, path);
+ if (ret < 0)
+ goto err;
+ else if (ret > 0)
+ break;
+ continue;
}
- advance = 1;
btrfs_item_key_to_cpu(leaf, &found_key, slot);
/* we are just looking for how big our buffer needs to be */
if (!size)
- continue;
+ goto next;
if (!buffer || (name_len + 1) > size_left) {
ret = -ERANGE;
size_left -= name_len + 1;
buffer += name_len + 1;
+next:
+ path->slots[0]++;
}
ret = total_size;
support and want to map the uid and gid fields
to values supplied at mount (rather than the
actual values, then set this to zero. (default 1)
-Experimental When set to 1 used to enable certain experimental
- features (currently enables multipage writes
- when signing is enabled, the multipage write
- performance enhancement was disabled when
- signing turned on in case buffer was modified
- just before it was sent, also this flag will
- be used to use the new experimental directory change
- notification code). When set to 2 enables
- an additional experimental feature, "raw ntlmssp"
- session establishment support (which allows
- specifying "sec=ntlmssp" on mount). The Linux cifs
- module will use ntlmv2 authentication encapsulated
- in "raw ntlmssp" (not using SPNEGO) when
- "sec=ntlmssp" is specified on mount.
- This support also requires building cifs with
- the CONFIG_CIFS_EXPERIMENTAL configuration flag.
These experimental features and tracing can be enabled by changing flags in
/proc/fs/cifs (after the cifs module has been installed or built into the
*/
struct cifs_server_key {
uint16_t family; /* address family */
- uint16_t port; /* IP port */
+ __be16 port; /* IP port */
union {
struct in_addr ipv4_addr;
struct in6_addr ipv6_addr;
static const struct file_operations traceSMB_proc_fops;
static const struct file_operations cifs_multiuser_mount_proc_fops;
static const struct file_operations cifs_security_flags_proc_fops;
-static const struct file_operations cifs_experimental_proc_fops;
static const struct file_operations cifs_linux_ext_proc_fops;
void
proc_create("cifsFYI", 0, proc_fs_cifs, &cifsFYI_proc_fops);
proc_create("traceSMB", 0, proc_fs_cifs, &traceSMB_proc_fops);
proc_create("OplockEnabled", 0, proc_fs_cifs, &cifs_oplock_proc_fops);
- proc_create("Experimental", 0, proc_fs_cifs,
- &cifs_experimental_proc_fops);
proc_create("LinuxExtensionsEnabled", 0, proc_fs_cifs,
&cifs_linux_ext_proc_fops);
proc_create("MultiuserMount", 0, proc_fs_cifs,
remove_proc_entry("OplockEnabled", proc_fs_cifs);
remove_proc_entry("SecurityFlags", proc_fs_cifs);
remove_proc_entry("LinuxExtensionsEnabled", proc_fs_cifs);
- remove_proc_entry("Experimental", proc_fs_cifs);
remove_proc_entry("LookupCacheEnabled", proc_fs_cifs);
remove_proc_entry("fs/cifs", NULL);
}
.write = cifs_oplock_proc_write,
};
-static int cifs_experimental_proc_show(struct seq_file *m, void *v)
-{
- seq_printf(m, "%d\n", experimEnabled);
- return 0;
-}
-
-static int cifs_experimental_proc_open(struct inode *inode, struct file *file)
-{
- return single_open(file, cifs_experimental_proc_show, NULL);
-}
-
-static ssize_t cifs_experimental_proc_write(struct file *file,
- const char __user *buffer, size_t count, loff_t *ppos)
-{
- char c;
- int rc;
-
- rc = get_user(c, buffer);
- if (rc)
- return rc;
- if (c == '0' || c == 'n' || c == 'N')
- experimEnabled = 0;
- else if (c == '1' || c == 'y' || c == 'Y')
- experimEnabled = 1;
- else if (c == '2')
- experimEnabled = 2;
-
- return count;
-}
-
-static const struct file_operations cifs_experimental_proc_fops = {
- .owner = THIS_MODULE,
- .open = cifs_experimental_proc_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
- .write = cifs_experimental_proc_write,
-};
-
static int cifs_linux_ext_proc_show(struct seq_file *m, void *v)
{
seq_printf(m, "%d\n", linuxExtEnabled);
MAX_MECH_STR_LEN +
UID_KEY_LEN + (sizeof(uid_t) * 2) +
CREDUID_KEY_LEN + (sizeof(uid_t) * 2) +
- USER_KEY_LEN + strlen(sesInfo->userName) +
+ USER_KEY_LEN + strlen(sesInfo->user_name) +
PID_KEY_LEN + (sizeof(pid_t) * 2) + 1;
spnego_key = ERR_PTR(-ENOMEM);
sprintf(dp, ";creduid=0x%x", sesInfo->cred_uid);
dp = description + strlen(description);
- sprintf(dp, ";user=%s", sesInfo->userName);
+ sprintf(dp, ";user=%s", sesInfo->user_name);
dp = description + strlen(description);
sprintf(dp, ";pid=0x%x", current->pid);
case UNI_COLON:
*target = ':';
break;
- case UNI_ASTERIK:
+ case UNI_ASTERISK:
*target = '*';
break;
case UNI_QUESTION:
* names are little endian 16 bit Unicode on the wire
*/
int
-cifsConvertToUCS(__le16 *target, const char *source, int maxlen,
+cifsConvertToUCS(__le16 *target, const char *source, int srclen,
const struct nls_table *cp, int mapChars)
{
int i, j, charlen;
- int len_remaining = maxlen;
char src_char;
- __u16 temp;
+ __le16 dst_char;
+ wchar_t tmp;
if (!mapChars)
return cifs_strtoUCS(target, source, PATH_MAX, cp);
- for (i = 0, j = 0; i < maxlen; j++) {
+ for (i = 0, j = 0; i < srclen; j++) {
src_char = source[i];
switch (src_char) {
case 0:
- put_unaligned_le16(0, &target[j]);
+ put_unaligned(0, &target[j]);
goto ctoUCS_out;
case ':':
- temp = UNI_COLON;
+ dst_char = cpu_to_le16(UNI_COLON);
break;
case '*':
- temp = UNI_ASTERIK;
+ dst_char = cpu_to_le16(UNI_ASTERISK);
break;
case '?':
- temp = UNI_QUESTION;
+ dst_char = cpu_to_le16(UNI_QUESTION);
break;
case '<':
- temp = UNI_LESSTHAN;
+ dst_char = cpu_to_le16(UNI_LESSTHAN);
break;
case '>':
- temp = UNI_GRTRTHAN;
+ dst_char = cpu_to_le16(UNI_GRTRTHAN);
break;
case '|':
- temp = UNI_PIPE;
+ dst_char = cpu_to_le16(UNI_PIPE);
break;
/*
* FIXME: We can not handle remapping backslash (UNI_SLASH)
* as they use backslash as separator.
*/
default:
- charlen = cp->char2uni(source+i, len_remaining,
- &temp);
+ charlen = cp->char2uni(source + i, srclen - i, &tmp);
+ dst_char = cpu_to_le16(tmp);
+
/*
* if no match, use question mark, which at least in
* some cases serves as wild card
*/
if (charlen < 1) {
- temp = 0x003f;
+ dst_char = cpu_to_le16(0x003f);
charlen = 1;
}
- len_remaining -= charlen;
/*
* character may take more than one byte in the source
* string, but will take exactly two bytes in the
i += charlen;
continue;
}
- put_unaligned_le16(temp, &target[j]);
+ put_unaligned(dst_char, &target[j]);
i++; /* move to next char in source string */
- len_remaining--;
}
ctoUCS_out:
* reserved symbols (along with \ and /), otherwise illegal to store
* in filenames in NTFS
*/
-#define UNI_ASTERIK (__u16) ('*' + 0xF000)
+#define UNI_ASTERISK (__u16) ('*' + 0xF000)
#define UNI_QUESTION (__u16) ('?' + 0xF000)
#define UNI_COLON (__u16) (':' + 0xF000)
#define UNI_GRTRTHAN (__u16) ('>' + 0xF000)
#include <linux/ctype.h>
#include <linux/random.h>
-/* Calculate and return the CIFS signature based on the mac key and SMB PDU */
-/* the 16 byte signature must be allocated by the caller */
-/* Note we only use the 1st eight bytes */
-/* Note that the smb header signature field on input contains the
- sequence number before this function is called */
-
+/*
+ * Calculate and return the CIFS signature based on the mac key and SMB PDU.
+ * The 16 byte signature must be allocated by the caller. Note we only use the
+ * 1st eight bytes and that the smb header signature field on input contains
+ * the sequence number before this function is called. Also, this function
+ * should be called with the server->srv_mutex held.
+ */
static int cifs_calculate_signature(const struct smb_hdr *cifs_pdu,
struct TCP_Server_Info *server, char *signature)
{
cpu_to_le32(expected_sequence_number);
cifs_pdu->Signature.Sequence.Reserved = 0;
+ mutex_lock(&server->srv_mutex);
rc = cifs_calculate_signature(cifs_pdu, server,
what_we_think_sig_should_be);
+ mutex_unlock(&server->srv_mutex);
if (rc)
return rc;
return rc;
}
- /* convert ses->userName to unicode and uppercase */
- len = strlen(ses->userName);
+ /* convert ses->user_name to unicode and uppercase */
+ len = strlen(ses->user_name);
user = kmalloc(2 + (len * 2), GFP_KERNEL);
if (user == NULL) {
cERROR(1, "calc_ntlmv2_hash: user mem alloc failure\n");
rc = -ENOMEM;
goto calc_exit_2;
}
- len = cifs_strtoUCS((__le16 *)user, ses->userName, len, nls_cp);
+ len = cifs_strtoUCS((__le16 *)user, ses->user_name, len, nls_cp);
UniStrupr(user);
crypto_shash_update(&ses->server->secmech.sdeschmacmd5->shash,
int cifsERROR = 1;
int traceSMB = 0;
unsigned int oplockEnabled = 1;
-unsigned int experimEnabled = 0;
unsigned int linuxExtEnabled = 1;
unsigned int lookupCacheEnabled = 1;
unsigned int multiuser_mount = 0;
kfree(cifs_sb);
return rc;
}
+ cifs_sb->bdi.ra_pages = default_backing_dev_info.ra_pages;
#ifdef CONFIG_CIFS_DFS_UPCALL
/* copy mount params to sb for use in submounts */
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MULTIUSER)
seq_printf(s, ",multiuser");
- else if (tcon->ses->userName)
- seq_printf(s, ",username=%s", tcon->ses->userName);
+ else if (tcon->ses->user_name)
+ seq_printf(s, ",username=%s", tcon->ses->user_name);
if (tcon->ses->domainName)
seq_printf(s, ",domain=%s", tcon->ses->domainName);
#define MAX_TREE_SIZE (2 + MAX_SERVER_SIZE + 1 + MAX_SHARE_SIZE + 1)
#define MAX_SERVER_SIZE 15
-#define MAX_SHARE_SIZE 64 /* used to be 20, this should still be enough */
-#define MAX_USERNAME_SIZE 32 /* 32 is to allow for 15 char names + null
- termination then *2 for unicode versions */
-#define MAX_PASSWORD_SIZE 512 /* max for windows seems to be 256 wide chars */
+#define MAX_SHARE_SIZE 80
+#define MAX_USERNAME_SIZE 256 /* reasonable maximum for current servers */
+#define MAX_PASSWORD_SIZE 512 /* max for windows seems to be 256 wide chars */
#define CIFS_MIN_RCV_POOL 4
CifsNew = 0,
CifsGood,
CifsExiting,
- CifsNeedReconnect
+ CifsNeedReconnect,
+ CifsNeedNegotiate
};
enum securityEnum {
int capabilities;
char serverName[SERVER_NAME_LEN_WITH_NULL * 2]; /* BB make bigger for
TCP names - will ipv6 and sctp addresses fit? */
- char userName[MAX_USERNAME_SIZE + 1];
+ char *user_name;
char *domainName;
char *password;
struct session_key auth_key;
have the uid/password or Kerberos credential
or equivalent for current user */
GLOBAL_EXTERN unsigned int oplockEnabled;
-GLOBAL_EXTERN unsigned int experimEnabled;
GLOBAL_EXTERN unsigned int lookupCacheEnabled;
GLOBAL_EXTERN unsigned int global_secflags; /* if on, session setup sent
with more secure ntlmssp2 challenge/resp */
*/
while (server->tcpStatus == CifsNeedReconnect) {
wait_event_interruptible_timeout(server->response_q,
- (server->tcpStatus == CifsGood), 10 * HZ);
+ (server->tcpStatus != CifsNeedReconnect), 10 * HZ);
- /* is TCP session is reestablished now ?*/
+ /* are we still trying to reconnect? */
if (server->tcpStatus != CifsNeedReconnect)
break;
return rc;
/* set up echo request */
- smb->hdr.Tid = cpu_to_le16(0xffff);
+ smb->hdr.Tid = 0xffff;
smb->hdr.WordCount = 1;
put_unaligned_le16(1, &smb->EchoCount);
put_bcc_le(1, &smb->hdr);
__constant_cpu_to_le16(CIFS_WRLCK))
pLockData->fl_type = F_WRLCK;
- pLockData->fl_start = parm_data->start;
- pLockData->fl_end = parm_data->start +
- parm_data->length - 1;
- pLockData->fl_pid = parm_data->pid;
+ pLockData->fl_start = le64_to_cpu(parm_data->start);
+ pLockData->fl_end = pLockData->fl_start +
+ le64_to_cpu(parm_data->length) - 1;
+ pLockData->fl_pid = le32_to_cpu(parm_data->pid);
}
}
}
spin_unlock(&GlobalMid_Lock);
- while ((server->tcpStatus != CifsExiting) &&
- (server->tcpStatus != CifsGood)) {
+ while (server->tcpStatus == CifsNeedReconnect) {
try_to_freeze();
/* we should try only the port we connected to before */
atomic_inc(&tcpSesReconnectCount);
spin_lock(&GlobalMid_Lock);
if (server->tcpStatus != CifsExiting)
- server->tcpStatus = CifsGood;
+ server->tcpStatus = CifsNeedNegotiate;
spin_unlock(&GlobalMid_Lock);
}
}
total_data_size = get_unaligned_le16(&pSMBt->t2_rsp.TotalDataCount);
data_in_this_rsp = get_unaligned_le16(&pSMBt->t2_rsp.DataCount);
- remaining = total_data_size - data_in_this_rsp;
-
- if (remaining == 0)
+ if (total_data_size == data_in_this_rsp)
return 0;
- else if (remaining < 0) {
+ else if (total_data_size < data_in_this_rsp) {
cFYI(1, "total data %d smaller than data in frame %d",
total_data_size, data_in_this_rsp);
return -EINVAL;
- } else {
- cFYI(1, "missing %d bytes from transact2, check next response",
- remaining);
- if (total_data_size > maxBufSize) {
- cERROR(1, "TotalDataSize %d is over maximum buffer %d",
- total_data_size, maxBufSize);
- return -EINVAL;
- }
- return remaining;
}
+
+ remaining = total_data_size - data_in_this_rsp;
+
+ cFYI(1, "missing %d bytes from transact2, check next response",
+ remaining);
+ if (total_data_size > maxBufSize) {
+ cERROR(1, "TotalDataSize %d is over maximum buffer %d",
+ total_data_size, maxBufSize);
+ return -EINVAL;
+ }
+ return remaining;
}
static int coalesce_t2(struct smb_hdr *psecond, struct smb_hdr *pTargetSMB)
pdu_length = 4; /* enough to get RFC1001 header */
incomplete_rcv:
- if (echo_retries > 0 &&
+ if (echo_retries > 0 && server->tcpStatus == CifsGood &&
time_after(jiffies, server->lstrp +
(echo_retries * SMB_ECHO_INTERVAL))) {
cERROR(1, "Server %s has not responded in %d seconds. "
/* null user, ie anonymous, authentication */
vol->nullauth = 1;
}
- if (strnlen(value, 200) < 200) {
+ if (strnlen(value, MAX_USERNAME_SIZE) <
+ MAX_USERNAME_SIZE) {
vol->username = value;
} else {
printk(KERN_WARNING "CIFS: username too long\n");
static bool
match_port(struct TCP_Server_Info *server, struct sockaddr *addr)
{
- unsigned short int port, *sport;
+ __be16 port, *sport;
switch (addr->sa_family) {
case AF_INET:
module_put(THIS_MODULE);
goto out_err_crypto_release;
}
+ tcp_ses->tcpStatus = CifsNeedNegotiate;
/* thread spawned, put it on the list */
spin_lock(&cifs_tcp_ses_lock);
break;
default:
/* anything else takes username/password */
- if (strncmp(ses->userName, vol->username,
+ if (ses->user_name == NULL)
+ continue;
+ if (strncmp(ses->user_name, vol->username,
MAX_USERNAME_SIZE))
continue;
if (strlen(vol->username) != 0 &&
cifs_put_tcp_session(server);
}
+static bool warned_on_ntlm; /* globals init to false automatically */
+
static struct cifsSesInfo *
cifs_get_smb_ses(struct TCP_Server_Info *server, struct smb_vol *volume_info)
{
else
sprintf(ses->serverName, "%pI4", &addr->sin_addr);
- if (volume_info->username)
- strncpy(ses->userName, volume_info->username,
- MAX_USERNAME_SIZE);
+ if (volume_info->username) {
+ ses->user_name = kstrdup(volume_info->username, GFP_KERNEL);
+ if (!ses->user_name)
+ goto get_ses_fail;
+ }
/* volume_info->password freed at unmount */
if (volume_info->password) {
}
ses->cred_uid = volume_info->cred_uid;
ses->linux_uid = volume_info->linux_uid;
+
+ /* ntlmv2 is much stronger than ntlm security, and has been broadly
+ supported for many years, time to update default security mechanism */
+ if ((volume_info->secFlg == 0) && warned_on_ntlm == false) {
+ warned_on_ntlm = true;
+ cERROR(1, "default security mechanism requested. The default "
+ "security mechanism will be upgraded from ntlm to "
+ "ntlmv2 in kernel release 2.6.41");
+ }
ses->overrideSecFlg = volume_info->secFlg;
mutex_lock(&ses->session_mutex);
generic_ip_connect(struct TCP_Server_Info *server)
{
int rc = 0;
- unsigned short int sport;
+ __be16 sport;
int slen, sfamily;
struct socket *socket = server->ssocket;
struct sockaddr *saddr;
static int
ip_connect(struct TCP_Server_Info *server)
{
- unsigned short int *sport;
+ __be16 *sport;
struct sockaddr_in6 *addr6 = (struct sockaddr_in6 *)&server->dstaddr;
struct sockaddr_in *addr = (struct sockaddr_in *)&server->dstaddr;
remote_path_check:
/* check if a whole path (including prepath) is not remote */
- if (!rc && cifs_sb->prepathlen && tcon) {
+ if (!rc && tcon) {
/* build_path_to_root works only when we have a valid tcon */
full_path = cifs_build_path_to_root(cifs_sb, tcon);
if (full_path == NULL) {
int cifs_close(struct inode *inode, struct file *file)
{
- cifsFileInfo_put(file->private_data);
- file->private_data = NULL;
+ if (file->private_data != NULL) {
+ cifsFileInfo_put(file->private_data);
+ file->private_data = NULL;
+ }
/* return code from the ->release op is always ignored */
return 0;
total_written += bytes_written) {
rc = -EAGAIN;
while (rc == -EAGAIN) {
+ struct kvec iov[2];
+ unsigned int len;
+
if (open_file->invalidHandle) {
/* we could deadlock if we called
filemap_fdatawait from here so tell
if (rc != 0)
break;
}
- if (experimEnabled || (pTcon->ses->server &&
- ((pTcon->ses->server->secMode &
- (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED))
- == 0))) {
- struct kvec iov[2];
- unsigned int len;
-
- len = min((size_t)cifs_sb->wsize,
- write_size - total_written);
- /* iov[0] is reserved for smb header */
- iov[1].iov_base = (char *)write_data +
- total_written;
- iov[1].iov_len = len;
- rc = CIFSSMBWrite2(xid, pTcon,
- open_file->netfid, len,
- *poffset, &bytes_written,
- iov, 1, 0);
- } else
- rc = CIFSSMBWrite(xid, pTcon,
- open_file->netfid,
- min_t(const int, cifs_sb->wsize,
- write_size - total_written),
- *poffset, &bytes_written,
- write_data + total_written,
- NULL, 0);
+
+ len = min((size_t)cifs_sb->wsize,
+ write_size - total_written);
+ /* iov[0] is reserved for smb header */
+ iov[1].iov_base = (char *)write_data + total_written;
+ iov[1].iov_len = len;
+ rc = CIFSSMBWrite2(xid, pTcon, open_file->netfid, len,
+ *poffset, &bytes_written, iov, 1, 0);
}
if (rc || (bytes_written == 0)) {
if (total_written)
}
tcon = tlink_tcon(open_file->tlink);
- if (!experimEnabled && tcon->ses->server->secMode &
- (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED)) {
- cifsFileInfo_put(open_file);
- kfree(iov);
- return generic_writepages(mapping, wbc);
- }
cifsFileInfo_put(open_file);
xid = GetXid();
return total_read;
}
+/*
+ * If the page is mmap'ed into a process' page tables, then we need to make
+ * sure that it doesn't change while being written back.
+ */
+static int
+cifs_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf)
+{
+ struct page *page = vmf->page;
+
+ lock_page(page);
+ return VM_FAULT_LOCKED;
+}
+
+static struct vm_operations_struct cifs_file_vm_ops = {
+ .fault = filemap_fault,
+ .page_mkwrite = cifs_page_mkwrite,
+};
+
int cifs_file_strict_mmap(struct file *file, struct vm_area_struct *vma)
{
int rc, xid;
cifs_invalidate_mapping(inode);
rc = generic_file_mmap(file, vma);
+ if (rc == 0)
+ vma->vm_ops = &cifs_file_vm_ops;
FreeXid(xid);
return rc;
}
return rc;
}
rc = generic_file_mmap(file, vma);
+ if (rc == 0)
+ vma->vm_ops = &cifs_file_vm_ops;
FreeXid(xid);
return rc;
}
if (rc != 0)
return rc;
- if (file_info.EndOfFile != CIFS_MF_SYMLINK_FILE_SIZE) {
+ if (file_info.EndOfFile != cpu_to_le64(CIFS_MF_SYMLINK_FILE_SIZE)) {
CIFSSMBClose(xid, tcon, netfid);
/* it's not a symlink */
return -EINVAL;
if (rc != 0)
goto out;
- if (file_info.EndOfFile != CIFS_MF_SYMLINK_FILE_SIZE) {
+ if (file_info.EndOfFile != cpu_to_le64(CIFS_MF_SYMLINK_FILE_SIZE)) {
CIFSSMBClose(xid, pTcon, netfid);
/* it's not a symlink */
goto out;
memset(buf_to_free->password, 0, strlen(buf_to_free->password));
kfree(buf_to_free->password);
}
+ kfree(buf_to_free->user_name);
kfree(buf_to_free->domainName);
kfree(buf_to_free);
}
(struct smb_com_transaction_change_notify_rsp *)buf;
struct file_notify_information *pnotify;
__u32 data_offset = 0;
- if (pSMBr->ByteCount > sizeof(struct file_notify_information)) {
+ if (get_bcc_le(buf) > sizeof(struct file_notify_information)) {
data_offset = le32_to_cpu(pSMBr->DataOffset);
pnotify = (struct file_notify_information *)
bcc_ptr++;
} */
/* copy user */
- if (ses->userName == NULL) {
+ if (ses->user_name == NULL) {
/* null user mount */
*bcc_ptr = 0;
*(bcc_ptr+1) = 0;
} else {
- bytes_ret = cifs_strtoUCS((__le16 *) bcc_ptr, ses->userName,
+ bytes_ret = cifs_strtoUCS((__le16 *) bcc_ptr, ses->user_name,
MAX_USERNAME_SIZE, nls_cp);
}
bcc_ptr += 2 * bytes_ret;
/* copy user */
/* BB what about null user mounts - check that we do this BB */
/* copy user */
- if (ses->userName == NULL) {
- /* BB what about null user mounts - check that we do this BB */
- } else {
- strncpy(bcc_ptr, ses->userName, MAX_USERNAME_SIZE);
- }
- bcc_ptr += strnlen(ses->userName, MAX_USERNAME_SIZE);
+ if (ses->user_name != NULL)
+ strncpy(bcc_ptr, ses->user_name, MAX_USERNAME_SIZE);
+ /* else null user mount */
+
+ bcc_ptr += strnlen(ses->user_name, MAX_USERNAME_SIZE);
*bcc_ptr = 0;
bcc_ptr++; /* account for null termination */
/* BB spec says that if AvId field of MsvAvTimestamp is populated then
we must set the MIC field of the AUTHENTICATE_MESSAGE */
ses->ntlmssp->server_flags = le32_to_cpu(pblob->NegotiateFlags);
- tioffset = cpu_to_le16(pblob->TargetInfoArray.BufferOffset);
- tilen = cpu_to_le16(pblob->TargetInfoArray.Length);
+ tioffset = le32_to_cpu(pblob->TargetInfoArray.BufferOffset);
+ tilen = le16_to_cpu(pblob->TargetInfoArray.Length);
if (tilen) {
ses->auth_key.response = kmalloc(tilen, GFP_KERNEL);
if (!ses->auth_key.response) {
tmp += len;
}
- if (ses->userName == NULL) {
+ if (ses->user_name == NULL) {
sec_blob->UserName.BufferOffset = cpu_to_le32(tmp - pbuffer);
sec_blob->UserName.Length = 0;
sec_blob->UserName.MaximumLength = 0;
tmp += 2;
} else {
int len;
- len = cifs_strtoUCS((__le16 *)tmp, ses->userName,
+ len = cifs_strtoUCS((__le16 *)tmp, ses->user_name,
MAX_USERNAME_SIZE, nls_cp);
len *= 2; /* unicode is 2 bytes each */
sec_blob->UserName.BufferOffset = cpu_to_le32(tmp - pbuffer);
*/
void dentry_update_name_case(struct dentry *dentry, struct qstr *name)
{
- BUG_ON(!mutex_is_locked(&dentry->d_inode->i_mutex));
+ BUG_ON(!mutex_is_locked(&dentry->d_parent->d_inode->i_mutex));
BUG_ON(dentry->d_name.len != name->len); /* d_lookup gives this */
spin_lock(&dentry->d_lock);
#ifdef CONFIG_QUOTA
/* Amount of blocks needed for quota update - we know that the structure was
- * allocated so we need to update only inode+data */
-#define EXT4_QUOTA_TRANS_BLOCKS(sb) (test_opt(sb, QUOTA) ? 2 : 0)
+ * allocated so we need to update only data block */
+#define EXT4_QUOTA_TRANS_BLOCKS(sb) (test_opt(sb, QUOTA) ? 1 : 0)
/* Amount of blocks needed for quota insert/delete - we do some block writes
* but inode, sb and group updates are done only once */
#define EXT4_QUOTA_INIT_BLOCKS(sb) (test_opt(sb, QUOTA) ? (DQUOT_INIT_ALLOC*\
* the parent directory's parent as well, and so on recursively, if
* they are also freshly created.
*/
-static void ext4_sync_parent(struct inode *inode)
+static int ext4_sync_parent(struct inode *inode)
{
+ struct writeback_control wbc;
struct dentry *dentry = NULL;
+ int ret = 0;
while (inode && ext4_test_inode_state(inode, EXT4_STATE_NEWENTRY)) {
ext4_clear_inode_state(inode, EXT4_STATE_NEWENTRY);
if (!dentry || !dentry->d_parent || !dentry->d_parent->d_inode)
break;
inode = dentry->d_parent->d_inode;
- sync_mapping_buffers(inode->i_mapping);
+ ret = sync_mapping_buffers(inode->i_mapping);
+ if (ret)
+ break;
+ memset(&wbc, 0, sizeof(wbc));
+ wbc.sync_mode = WB_SYNC_ALL;
+ wbc.nr_to_write = 0; /* only write out the inode */
+ ret = sync_inode(inode, &wbc);
+ if (ret)
+ break;
}
+ return ret;
}
/*
if (!journal) {
ret = generic_file_fsync(file, datasync);
if (!ret && !list_empty(&inode->i_dentry))
- ext4_sync_parent(inode);
+ ret = ext4_sync_parent(inode);
goto out;
}
* for partial write.
*/
set_buffer_new(bh);
+ set_buffer_mapped(bh);
}
return 0;
}
Indirect chain[4];
Indirect *partial;
__le32 nr = 0;
- int n;
- ext4_lblk_t last_block;
+ int n = 0;
+ ext4_lblk_t last_block, max_block;
unsigned blocksize = inode->i_sb->s_blocksize;
trace_ext4_truncate_enter(inode);
last_block = (inode->i_size + blocksize-1)
>> EXT4_BLOCK_SIZE_BITS(inode->i_sb);
+ max_block = (EXT4_SB(inode->i_sb)->s_bitmap_maxbytes + blocksize-1)
+ >> EXT4_BLOCK_SIZE_BITS(inode->i_sb);
if (inode->i_size & (blocksize - 1))
if (ext4_block_truncate_page(handle, mapping, inode->i_size))
goto out_stop;
- n = ext4_block_to_path(inode, last_block, offsets, NULL);
- if (n == 0)
- goto out_stop; /* error */
+ if (last_block != max_block) {
+ n = ext4_block_to_path(inode, last_block, offsets, NULL);
+ if (n == 0)
+ goto out_stop; /* error */
+ }
/*
* OK. This truncate is going to happen. We add the inode to the
*/
ei->i_disksize = inode->i_size;
- if (n == 1) { /* direct blocks */
+ if (last_block == max_block) {
+ /*
+ * It is unnecessary to free any data blocks if last_block is
+ * equal to the indirect block limit.
+ */
+ goto out_unlock;
+ } else if (n == 1) { /* direct blocks */
ext4_free_data(handle, inode, NULL, i_data+offsets[0],
i_data + EXT4_NDIR_BLOCKS);
goto do_indirects;
;
}
+out_unlock:
up_write(&ei->i_data_sem);
inode->i_mtime = inode->i_ctime = ext4_current_time(inode);
ext4_mark_inode_dirty(handle, inode);
/* if nrblocks are contiguous */
if (chunk) {
/*
- * With N contiguous data blocks, it need at most
- * N/EXT4_ADDR_PER_BLOCK(inode->i_sb) indirect blocks
- * 2 dindirect blocks
- * 1 tindirect block
+ * With N contiguous data blocks, we need at most
+ * N/EXT4_ADDR_PER_BLOCK(inode->i_sb) + 1 indirect blocks,
+ * 2 dindirect blocks, and 1 tindirect block
*/
- indirects = nrblocks / EXT4_ADDR_PER_BLOCK(inode->i_sb);
- return indirects + 3;
+ return DIV_ROUND_UP(nrblocks,
+ EXT4_ADDR_PER_BLOCK(inode->i_sb)) + 4;
}
/*
* if nrblocks are not contiguous, worse case, each block touch
* journal_end calls result in the superblock being marked dirty, so
* that sync() will call the filesystem's write_super callback if
* appropriate.
+ *
+ * To avoid j_barrier hold in userspace when a user calls freeze(),
+ * ext4 prevents a new handle from being started by s_frozen, which
+ * is in an upper layer.
*/
handle_t *ext4_journal_start_sb(struct super_block *sb, int nblocks)
{
journal_t *journal;
+ handle_t *handle;
if (sb->s_flags & MS_RDONLY)
return ERR_PTR(-EROFS);
- vfs_check_frozen(sb, SB_FREEZE_TRANS);
- /* Special case here: if the journal has aborted behind our
- * backs (eg. EIO in the commit thread), then we still need to
- * take the FS itself readonly cleanly. */
journal = EXT4_SB(sb)->s_journal;
- if (journal) {
- if (is_journal_aborted(journal)) {
- ext4_abort(sb, "Detected aborted journal");
- return ERR_PTR(-EROFS);
- }
- return jbd2_journal_start(journal, nblocks);
+ handle = ext4_journal_current_handle();
+
+ /*
+ * If a handle has been started, it should be allowed to
+ * finish, otherwise deadlock could happen between freeze
+ * and others(e.g. truncate) due to the restart of the
+ * journal handle if the filesystem is forzen and active
+ * handles are not stopped.
+ */
+ if (!handle)
+ vfs_check_frozen(sb, SB_FREEZE_TRANS);
+
+ if (!journal)
+ return ext4_get_nojournal();
+ /*
+ * Special case here: if the journal has aborted behind our
+ * backs (eg. EIO in the commit thread), then we still need to
+ * take the FS itself readonly cleanly.
+ */
+ if (is_journal_aborted(journal)) {
+ ext4_abort(sb, "Detected aborted journal");
+ return ERR_PTR(-EROFS);
}
- return ext4_get_nojournal();
+ return jbd2_journal_start(journal, nblocks);
}
/*
mutex_unlock(&ext4_li_info->li_list_mtx);
sbi->s_li_request = elr;
+ /*
+ * set elr to NULL here since it has been inserted to
+ * the request_list and the removal and free of it is
+ * handled by ext4_clear_request_list from now on.
+ */
+ elr = NULL;
if (!(ext4_li_info->li_state & EXT4_LAZYINIT_RUNNING)) {
ret = ext4_run_lazyinit_thread();
get_random_bytes(&sbi->s_next_generation, sizeof(u32));
spin_lock_init(&sbi->s_next_gen_lock);
+ init_timer(&sbi->s_err_report);
+ sbi->s_err_report.function = print_daily_error_info;
+ sbi->s_err_report.data = (unsigned long) sb;
+
err = percpu_counter_init(&sbi->s_freeblocks_counter,
ext4_count_free_blocks(sb));
if (!err) {
"Opts: %s%s%s", descr, sbi->s_es->s_mount_opts,
*sbi->s_es->s_mount_opts ? "; " : "", orig_data);
- init_timer(&sbi->s_err_report);
- sbi->s_err_report.function = print_daily_error_info;
- sbi->s_err_report.data = (unsigned long) sb;
if (es->s_error_count)
mod_timer(&sbi->s_err_report, jiffies + 300*HZ); /* 5 minutes */
sbi->s_journal = NULL;
}
failed_mount3:
+ del_timer(&sbi->s_err_report);
if (sbi->s_flex_groups) {
if (is_vmalloc_addr(sbi->s_flex_groups))
vfree(sbi->s_flex_groups);
/*
* LVM calls this function before a (read-only) snapshot is created. This
* gives us a chance to flush the journal completely and mark the fs clean.
+ *
+ * Note that only this function cannot bring a filesystem to be in a clean
+ * state independently, because ext4 prevents a new handle from being started
+ * by @sb->s_frozen, which stays in an upper layer. It thus needs help from
+ * the upper layer.
*/
static int ext4_freeze(struct super_block *sb)
{
static int ext4_quota_off(struct super_block *sb, int type)
{
+ struct inode *inode = sb_dqopt(sb)->files[type];
+ handle_t *handle;
+
/* Force all delayed allocation blocks to be allocated.
* Caller already holds s_umount sem */
if (test_opt(sb, DELALLOC))
sync_filesystem(sb);
+ /* Update modification times of quota files when userspace can
+ * start looking at them */
+ handle = ext4_journal_start(inode, 1);
+ if (IS_ERR(handle))
+ goto out;
+ inode->i_mtime = inode->i_ctime = CURRENT_TIME;
+ ext4_mark_inode_dirty(handle, inode);
+ ext4_journal_stop(handle);
+
+out:
return dquot_quota_off(sb, type);
}
if (inode->i_size < off + len) {
i_size_write(inode, off + len);
EXT4_I(inode)->i_disksize = inode->i_size;
+ ext4_mark_inode_dirty(handle, inode);
}
- inode->i_mtime = inode->i_ctime = CURRENT_TIME;
- ext4_mark_inode_dirty(handle, inode);
mutex_unlock(&inode->i_mutex);
return len;
}
#include <linux/exportfs.h>
#include <linux/fs_struct.h>
#include <linux/fsnotify.h>
+#include <linux/personality.h>
#include <asm/uaccess.h>
#include "internal.h"
*tmp = fs->next;
fs->next = NULL;
write_unlock(&file_systems_lock);
+ synchronize_rcu();
return 0;
}
tmp = &(*tmp)->next;
}
write_unlock(&file_systems_lock);
- synchronize_rcu();
-
return -EINVAL;
}
}
brelse(dibh);
- gfs2_trans_end(sdp);
failed:
+ gfs2_trans_end(sdp);
if (al) {
gfs2_inplace_release(ip);
gfs2_quota_unlock(ip);
inode = gfs2_inode_lookup(dir->i_sb,
be16_to_cpu(dent->de_type),
be64_to_cpu(dent->de_inum.no_addr),
- be64_to_cpu(dent->de_inum.no_formal_ino));
+ be64_to_cpu(dent->de_inum.no_formal_ino), 0);
brelse(bh);
return inode;
}
return generic_file_aio_write(iocb, iov, nr_segs, pos);
}
-static void empty_write_end(struct page *page, unsigned from,
- unsigned to)
+static int empty_write_end(struct page *page, unsigned from,
+ unsigned to, int mode)
{
- struct gfs2_inode *ip = GFS2_I(page->mapping->host);
+ struct inode *inode = page->mapping->host;
+ struct gfs2_inode *ip = GFS2_I(inode);
+ struct buffer_head *bh;
+ unsigned offset, blksize = 1 << inode->i_blkbits;
+ pgoff_t end_index = i_size_read(inode) >> PAGE_CACHE_SHIFT;
zero_user(page, from, to-from);
mark_page_accessed(page);
- if (!gfs2_is_writeback(ip))
- gfs2_page_add_databufs(ip, page, from, to);
+ if (page->index < end_index || !(mode & FALLOC_FL_KEEP_SIZE)) {
+ if (!gfs2_is_writeback(ip))
+ gfs2_page_add_databufs(ip, page, from, to);
+
+ block_commit_write(page, from, to);
+ return 0;
+ }
+
+ offset = 0;
+ bh = page_buffers(page);
+ while (offset < to) {
+ if (offset >= from) {
+ set_buffer_uptodate(bh);
+ mark_buffer_dirty(bh);
+ clear_buffer_new(bh);
+ write_dirty_buffer(bh, WRITE);
+ }
+ offset += blksize;
+ bh = bh->b_this_page;
+ }
- block_commit_write(page, from, to);
+ offset = 0;
+ bh = page_buffers(page);
+ while (offset < to) {
+ if (offset >= from) {
+ wait_on_buffer(bh);
+ if (!buffer_uptodate(bh))
+ return -EIO;
+ }
+ offset += blksize;
+ bh = bh->b_this_page;
+ }
+ return 0;
}
static int needs_empty_write(sector_t block, struct inode *inode)
return !buffer_mapped(&bh_map);
}
-static int write_empty_blocks(struct page *page, unsigned from, unsigned to)
+static int write_empty_blocks(struct page *page, unsigned from, unsigned to,
+ int mode)
{
struct inode *inode = page->mapping->host;
unsigned start, end, next, blksize;
gfs2_block_map);
if (unlikely(ret))
return ret;
- empty_write_end(page, start, end);
+ ret = empty_write_end(page, start, end, mode);
+ if (unlikely(ret))
+ return ret;
end = 0;
}
start = next;
ret = __block_write_begin(page, start, end - start, gfs2_block_map);
if (unlikely(ret))
return ret;
- empty_write_end(page, start, end);
+ ret = empty_write_end(page, start, end, mode);
+ if (unlikely(ret))
+ return ret;
}
return 0;
if (curr == end)
to = end_offset;
- error = write_empty_blocks(page, from, to);
+ error = write_empty_blocks(page, from, to, mode);
if (!error && offset + to > inode->i_size &&
!(mode & FALLOC_FL_KEEP_SIZE)) {
i_size_write(inode, offset + to);
static void iopen_go_callback(struct gfs2_glock *gl)
{
struct gfs2_inode *ip = (struct gfs2_inode *)gl->gl_object;
+ struct gfs2_sbd *sdp = gl->gl_sbd;
+
+ if (sdp->sd_vfs->s_flags & MS_RDONLY)
+ return;
if (gl->gl_demote_state == LM_ST_UNLOCKED &&
gl->gl_state == LM_ST_SHARED && ip) {
u64 ir_length;
};
+struct gfs2_skip_data {
+ u64 no_addr;
+ int skipped;
+ int non_block;
+};
+
static int iget_test(struct inode *inode, void *opaque)
{
struct gfs2_inode *ip = GFS2_I(inode);
- u64 *no_addr = opaque;
+ struct gfs2_skip_data *data = opaque;
- if (ip->i_no_addr == *no_addr)
+ if (ip->i_no_addr == data->no_addr) {
+ if (data->non_block &&
+ inode->i_state & (I_FREEING|I_CLEAR|I_WILL_FREE)) {
+ data->skipped = 1;
+ return 0;
+ }
return 1;
-
+ }
return 0;
}
static int iget_set(struct inode *inode, void *opaque)
{
struct gfs2_inode *ip = GFS2_I(inode);
- u64 *no_addr = opaque;
+ struct gfs2_skip_data *data = opaque;
- inode->i_ino = (unsigned long)*no_addr;
- ip->i_no_addr = *no_addr;
+ if (data->skipped)
+ return -ENOENT;
+ inode->i_ino = (unsigned long)(data->no_addr);
+ ip->i_no_addr = data->no_addr;
return 0;
}
struct inode *gfs2_ilookup(struct super_block *sb, u64 no_addr)
{
unsigned long hash = (unsigned long)no_addr;
- return ilookup5(sb, hash, iget_test, &no_addr);
+ struct gfs2_skip_data data;
+
+ data.no_addr = no_addr;
+ data.skipped = 0;
+ data.non_block = 0;
+ return ilookup5(sb, hash, iget_test, &data);
}
-static struct inode *gfs2_iget(struct super_block *sb, u64 no_addr)
+static struct inode *gfs2_iget(struct super_block *sb, u64 no_addr,
+ int non_block)
{
+ struct gfs2_skip_data data;
unsigned long hash = (unsigned long)no_addr;
- return iget5_locked(sb, hash, iget_test, iget_set, &no_addr);
+
+ data.no_addr = no_addr;
+ data.skipped = 0;
+ data.non_block = non_block;
+ return iget5_locked(sb, hash, iget_test, iget_set, &data);
}
/**
* @sb: The super block
* @no_addr: The inode number
* @type: The type of the inode
+ * non_block: Can we block on inodes that are being freed?
*
* Returns: A VFS inode, or an error
*/
struct inode *gfs2_inode_lookup(struct super_block *sb, unsigned int type,
- u64 no_addr, u64 no_formal_ino)
+ u64 no_addr, u64 no_formal_ino, int non_block)
{
struct inode *inode;
struct gfs2_inode *ip;
struct gfs2_glock *io_gl = NULL;
int error;
- inode = gfs2_iget(sb, no_addr);
+ inode = gfs2_iget(sb, no_addr, non_block);
ip = GFS2_I(inode);
if (!inode)
{
struct super_block *sb = sdp->sd_vfs;
struct gfs2_holder i_gh;
- struct inode *inode;
+ struct inode *inode = NULL;
int error;
+ /* Must not read in block until block type is verified */
error = gfs2_glock_nq_num(sdp, no_addr, &gfs2_inode_glops,
- LM_ST_SHARED, LM_FLAG_ANY, &i_gh);
+ LM_ST_EXCLUSIVE, GL_SKIP, &i_gh);
if (error)
return ERR_PTR(error);
if (error)
goto fail;
- inode = gfs2_inode_lookup(sb, DT_UNKNOWN, no_addr, 0);
+ inode = gfs2_inode_lookup(sb, DT_UNKNOWN, no_addr, 0, 1);
if (IS_ERR(inode))
goto fail;
goto fail_gunlock2;
inode = gfs2_inode_lookup(dir->i_sb, IF2DT(mode), inum.no_addr,
- inum.no_formal_ino);
+ inum.no_formal_ino, 0);
if (IS_ERR(inode))
goto fail_gunlock2;
}
extern struct inode *gfs2_inode_lookup(struct super_block *sb, unsigned type,
- u64 no_addr, u64 no_formal_ino);
+ u64 no_addr, u64 no_formal_ino,
+ int non_block);
extern struct inode *gfs2_lookup_by_inum(struct gfs2_sbd *sdp, u64 no_addr,
u64 *no_formal_ino,
unsigned int blktype);
struct dentry *dentry;
struct inode *inode;
- inode = gfs2_inode_lookup(sb, DT_DIR, no_addr, 0);
+ inode = gfs2_inode_lookup(sb, DT_DIR, no_addr, 0, 0);
if (IS_ERR(inode)) {
fs_err(sdp, "can't read in %s inode: %ld\n", name, PTR_ERR(inode));
return PTR_ERR(inode);
/* rgblk_search can return a block < goal, so we need to
keep it marching forward. */
no_addr = block + rgd->rd_data0;
- goal++;
+ goal = max(block + 1, goal + 1);
if (*last_unlinked != NO_BLOCK && no_addr <= *last_unlinked)
continue;
if (no_addr == skip)
found++;
/* Limit reclaim to sensible number of tasks */
- if (found > 2*NR_CPUS)
+ if (found > NR_CPUS)
return;
}
static void gfs2_evict_inode(struct inode *inode)
{
- struct gfs2_sbd *sdp = inode->i_sb->s_fs_info;
+ struct super_block *sb = inode->i_sb;
+ struct gfs2_sbd *sdp = sb->s_fs_info;
struct gfs2_inode *ip = GFS2_I(inode);
struct gfs2_holder gh;
int error;
- if (inode->i_nlink)
+ if (inode->i_nlink || (sb->s_flags & MS_RDONLY))
goto out;
- error = gfs2_glock_nq_init(ip->i_gl, LM_ST_EXCLUSIVE, 0, &gh);
+ /* Must not read inode block until block type has been verified */
+ error = gfs2_glock_nq_init(ip->i_gl, LM_ST_EXCLUSIVE, GL_SKIP, &gh);
if (unlikely(error)) {
gfs2_glock_dq_uninit(&ip->i_iopen_gh);
goto out;
if (error)
goto out_truncate;
+ if (test_bit(GIF_INVALID, &ip->i_flags)) {
+ error = gfs2_inode_refresh(ip);
+ if (error)
+ goto out_truncate;
+ }
+
ip->i_iopen_gh.gh_flags |= GL_NOCACHE;
gfs2_glock_dq_wait(&ip->i_iopen_gh);
gfs2_holder_reinit(LM_ST_EXCLUSIVE, LM_FLAG_TRY_1CB | GL_NOCACHE, &ip->i_iopen_gh);
int ret;
struct timespec now = current_kernel_time();
+ *cbh = NULL;
+
if (is_journal_aborted(journal))
return 0;
if (err)
__jbd2_journal_abort_hard(journal);
}
- if (!err && !is_journal_aborted(journal))
+ if (cbh)
err = journal_wait_on_commit_record(journal, cbh);
if (JBD2_HAS_INCOMPAT_FEATURE(journal,
JBD2_FEATURE_INCOMPAT_ASYNC_COMMIT) &&
new_dev = kmalloc(sizeof(struct devname_cache), GFP_KERNEL);
if (!new_dev)
return "NODEV-ALLOCFAILURE"; /* Something non-NULL */
+ bd = bdget(device);
spin_lock(&devname_cache_lock);
if (devcache[i]) {
if (devcache[i]->device == device) {
kfree(new_dev);
+ bdput(bd);
ret = devcache[i]->devname;
spin_unlock(&devname_cache_lock);
return ret;
}
devcache[i] = new_dev;
devcache[i]->device = device;
- bd = bdget(device);
if (bd) {
bdevname(bd, devcache[i]->devname);
bdput(bd);
do {
seq = read_seqcount_begin(&fs->seq);
nd->root = fs->root;
+ nd->seq = __read_seqcount_begin(&nd->root.dentry->d_seq);
} while (read_seqcount_retry(&fs->seq, seq));
}
}
.show = show_vfsmnt
};
-static int uuid_is_nil(u8 *uuid)
-{
- int i;
- u8 *cp = (u8 *)uuid;
-
- for (i = 0; i < 16; i++) {
- if (*cp++)
- return 0;
- }
- return 1;
-}
-
static int show_mountinfo(struct seq_file *m, void *v)
{
struct proc_mounts *p = m->private;
if (IS_MNT_UNBINDABLE(mnt))
seq_puts(m, " unbindable");
- if (!uuid_is_nil(mnt->mnt_sb->s_uuid))
- /* print the uuid */
- seq_printf(m, " uuid:%pU", mnt->mnt_sb->s_uuid);
-
/* Filesystem specific data */
seq_puts(m, " - ");
show_type(m, sb);
if (!nfs_need_commit(nfsi))
return 0;
+ spin_lock(&inode->i_lock);
ret = nfs_scan_list(nfsi, dst, idx_start, npages, NFS_PAGE_TAG_COMMIT);
if (ret > 0)
nfsi->ncommit -= ret;
+ spin_unlock(&inode->i_lock);
+
if (nfs_need_commit(NFS_I(inode)))
__mark_inode_dirty(inode, I_DIRTY_DATASYNC);
+
return ret;
}
#else
res = nfs_commit_set_lock(NFS_I(inode), may_wait);
if (res <= 0)
goto out_mark_dirty;
- spin_lock(&inode->i_lock);
res = nfs_scan_commit(inode, &head, 0, 0);
- spin_unlock(&inode->i_lock);
if (res) {
int error;
exp_readlock();
nfserr = nfsd_open(rqstp, &fh, S_IFREG, NFSD_MAY_LOCK, filp);
fh_put(&fh);
- rqstp->rq_client = NULL;
exp_readunlock();
/* We return nlm error codes as nlm doesn't know
* about nfsd, but nfsd does know about nlm..
if (atomic_dec_and_test(&fp->fi_delegees)) {
vfs_setlease(fp->fi_deleg_file, F_UNLCK, &fp->fi_lease);
fp->fi_lease = NULL;
+ fput(fp->fi_deleg_file);
fp->fi_deleg_file = NULL;
}
}
static void free_generic_stateid(struct nfs4_stateid *stp)
{
- int oflag = nfs4_access_bmap_to_omode(stp);
+ int oflag;
- nfs4_file_put_access(stp->st_file, oflag);
+ if (stp->st_access_bmap) {
+ oflag = nfs4_access_bmap_to_omode(stp);
+ nfs4_file_put_access(stp->st_file, oflag);
+ }
put_nfs4_file(stp->st_file);
kmem_cache_free(stateid_slab, stp);
}
goto out;
if (!(iap->ia_valid & ATTR_MODE))
iap->ia_mode = 0;
- err = fh_verify(rqstp, fhp, S_IFDIR, NFSD_MAY_CREATE);
+ err = fh_verify(rqstp, fhp, S_IFDIR, NFSD_MAY_EXEC);
if (err)
goto out;
if (IS_ERR(dchild))
goto out_nfserr;
+ /* If file doesn't exist, check for permissions to create one */
+ if (!dchild->d_inode) {
+ err = fh_verify(rqstp, fhp, S_IFDIR, NFSD_MAY_CREATE);
+ if (err)
+ goto out;
+ }
+
err = fh_compose(resfhp, fhp->fh_export, dchild, fhp);
if (err)
goto out;
BUG_ON (!data || !frags);
+ if (size < 2 * VBLK_SIZE_HEAD) {
+ ldm_error("Value of size is to small.");
+ return false;
+ }
+
group = get_unaligned_be32(data + 0x08);
rec = get_unaligned_be16(data + 0x0C);
num = get_unaligned_be16(data + 0x0E);
ldm_error ("A VBLK claims to have %d parts.", num);
return false;
}
+ if (rec >= num) {
+ ldm_error("REC value (%d) exceeds NUM value (%d)", rec, num);
+ return false;
+ }
list_for_each (item, frags) {
f = list_entry (item, struct frag, list);
f->map |= (1 << rec);
- if (num > 0) {
- data += VBLK_SIZE_HEAD;
- size -= VBLK_SIZE_HEAD;
- }
+ data += VBLK_SIZE_HEAD;
+ size -= VBLK_SIZE_HEAD;
+
memcpy (f->data+rec*(size-VBLK_SIZE_HEAD)+VBLK_SIZE_HEAD, data, size);
return true;
/* for the /proc/ directory itself, after non-process stuff has been done */
int proc_pid_readdir(struct file * filp, void * dirent, filldir_t filldir)
{
- unsigned int nr = filp->f_pos - FIRST_PROCESS_ENTRY;
- struct task_struct *reaper = get_proc_task(filp->f_path.dentry->d_inode);
+ unsigned int nr;
+ struct task_struct *reaper;
struct tgid_iter iter;
struct pid_namespace *ns;
+ if (filp->f_pos >= PID_MAX_LIMIT + TGID_OFFSET)
+ goto out_no_task;
+ nr = filp->f_pos - FIRST_PROCESS_ENTRY;
+
+ reaper = get_proc_task(filp->f_path.dentry->d_inode);
if (!reaper)
goto out_no_task;
SetPageDirty(page);
unlock_page(page);
+ put_page(page);
}
return 0;
#ifndef __UBIFS_DEBUG_H__
#define __UBIFS_DEBUG_H__
+/* Checking helper functions */
+typedef int (*dbg_leaf_callback)(struct ubifs_info *c,
+ struct ubifs_zbranch *zbr, void *priv);
+typedef int (*dbg_znode_callback)(struct ubifs_info *c,
+ struct ubifs_znode *znode, void *priv);
+
#ifdef CONFIG_UBIFS_FS_DEBUG
/**
void dbg_dump_index(struct ubifs_info *c);
void dbg_dump_lpt_lebs(const struct ubifs_info *c);
-/* Checking helper functions */
-typedef int (*dbg_leaf_callback)(struct ubifs_info *c,
- struct ubifs_zbranch *zbr, void *priv);
-typedef int (*dbg_znode_callback)(struct ubifs_info *c,
- struct ubifs_znode *znode, void *priv);
int dbg_walk_index(struct ubifs_info *c, dbg_leaf_callback leaf_cb,
dbg_znode_callback znode_cb, void *priv);
int dbg_check_filesystem(struct ubifs_info *c);
void dbg_check_heap(struct ubifs_info *c, struct ubifs_lpt_heap *heap, int cat,
int add_pos);
-int dbg_check_lprops(struct ubifs_info *c);
int dbg_check_lpt_nodes(struct ubifs_info *c, struct ubifs_cnode *cnode,
int row, int col);
int dbg_check_inode_size(struct ubifs_info *c, const struct inode *inode,
#define DBGKEY(key) ((char *)(key))
#define DBGKEY1(key) ((char *)(key))
-#define ubifs_debugging_init(c) 0
-#define ubifs_debugging_exit(c) ({})
-
-#define dbg_ntype(type) ""
-#define dbg_cstate(cmt_state) ""
-#define dbg_jhead(jhead) ""
-#define dbg_get_key_dump(c, key) ({})
-#define dbg_dump_inode(c, inode) ({})
-#define dbg_dump_node(c, node) ({})
-#define dbg_dump_lpt_node(c, node, lnum, offs) ({})
-#define dbg_dump_budget_req(req) ({})
-#define dbg_dump_lstats(lst) ({})
-#define dbg_dump_budg(c) ({})
-#define dbg_dump_lprop(c, lp) ({})
-#define dbg_dump_lprops(c) ({})
-#define dbg_dump_lpt_info(c) ({})
-#define dbg_dump_leb(c, lnum) ({})
-#define dbg_dump_znode(c, znode) ({})
-#define dbg_dump_heap(c, heap, cat) ({})
-#define dbg_dump_pnode(c, pnode, parent, iip) ({})
-#define dbg_dump_tnc(c) ({})
-#define dbg_dump_index(c) ({})
-#define dbg_dump_lpt_lebs(c) ({})
-
-#define dbg_walk_index(c, leaf_cb, znode_cb, priv) 0
-#define dbg_old_index_check_init(c, zroot) 0
-#define dbg_save_space_info(c) ({})
-#define dbg_check_space_info(c) 0
-#define dbg_check_old_index(c, zroot) 0
-#define dbg_check_cats(c) 0
-#define dbg_check_ltab(c) 0
-#define dbg_chk_lpt_free_spc(c) 0
-#define dbg_chk_lpt_sz(c, action, len) 0
-#define dbg_check_synced_i_size(inode) 0
-#define dbg_check_dir_size(c, dir) 0
-#define dbg_check_tnc(c, x) 0
-#define dbg_check_idx_size(c, idx_size) 0
-#define dbg_check_filesystem(c) 0
-#define dbg_check_heap(c, heap, cat, add_pos) ({})
-#define dbg_check_lprops(c) 0
-#define dbg_check_lpt_nodes(c, cnode, row, col) 0
-#define dbg_check_inode_size(c, inode, size) 0
-#define dbg_check_data_nodes_order(c, head) 0
-#define dbg_check_nondata_nodes_order(c, head) 0
-#define dbg_force_in_the_gaps_enabled 0
-#define dbg_force_in_the_gaps() 0
-#define dbg_failure_mode 0
-
-#define dbg_debugfs_init() 0
-#define dbg_debugfs_exit()
-#define dbg_debugfs_init_fs(c) 0
-#define dbg_debugfs_exit_fs(c) 0
+static inline int ubifs_debugging_init(struct ubifs_info *c) { return 0; }
+static inline void ubifs_debugging_exit(struct ubifs_info *c) { return; }
+static inline const char *dbg_ntype(int type) { return ""; }
+static inline const char *dbg_cstate(int cmt_state) { return ""; }
+static inline const char *dbg_jhead(int jhead) { return ""; }
+static inline const char *
+dbg_get_key_dump(const struct ubifs_info *c,
+ const union ubifs_key *key) { return ""; }
+static inline void dbg_dump_inode(const struct ubifs_info *c,
+ const struct inode *inode) { return; }
+static inline void dbg_dump_node(const struct ubifs_info *c,
+ const void *node) { return; }
+static inline void dbg_dump_lpt_node(const struct ubifs_info *c,
+ void *node, int lnum,
+ int offs) { return; }
+static inline void
+dbg_dump_budget_req(const struct ubifs_budget_req *req) { return; }
+static inline void
+dbg_dump_lstats(const struct ubifs_lp_stats *lst) { return; }
+static inline void dbg_dump_budg(struct ubifs_info *c) { return; }
+static inline void dbg_dump_lprop(const struct ubifs_info *c,
+ const struct ubifs_lprops *lp) { return; }
+static inline void dbg_dump_lprops(struct ubifs_info *c) { return; }
+static inline void dbg_dump_lpt_info(struct ubifs_info *c) { return; }
+static inline void dbg_dump_leb(const struct ubifs_info *c,
+ int lnum) { return; }
+static inline void
+dbg_dump_znode(const struct ubifs_info *c,
+ const struct ubifs_znode *znode) { return; }
+static inline void dbg_dump_heap(struct ubifs_info *c,
+ struct ubifs_lpt_heap *heap,
+ int cat) { return; }
+static inline void dbg_dump_pnode(struct ubifs_info *c,
+ struct ubifs_pnode *pnode,
+ struct ubifs_nnode *parent,
+ int iip) { return; }
+static inline void dbg_dump_tnc(struct ubifs_info *c) { return; }
+static inline void dbg_dump_index(struct ubifs_info *c) { return; }
+static inline void dbg_dump_lpt_lebs(const struct ubifs_info *c) { return; }
+
+static inline int dbg_walk_index(struct ubifs_info *c,
+ dbg_leaf_callback leaf_cb,
+ dbg_znode_callback znode_cb,
+ void *priv) { return 0; }
+static inline void dbg_save_space_info(struct ubifs_info *c) { return; }
+static inline int dbg_check_space_info(struct ubifs_info *c) { return 0; }
+static inline int dbg_check_lprops(struct ubifs_info *c) { return 0; }
+static inline int
+dbg_old_index_check_init(struct ubifs_info *c,
+ struct ubifs_zbranch *zroot) { return 0; }
+static inline int
+dbg_check_old_index(struct ubifs_info *c,
+ struct ubifs_zbranch *zroot) { return 0; }
+static inline int dbg_check_cats(struct ubifs_info *c) { return 0; }
+static inline int dbg_check_ltab(struct ubifs_info *c) { return 0; }
+static inline int dbg_chk_lpt_free_spc(struct ubifs_info *c) { return 0; }
+static inline int dbg_chk_lpt_sz(struct ubifs_info *c,
+ int action, int len) { return 0; }
+static inline int dbg_check_synced_i_size(struct inode *inode) { return 0; }
+static inline int dbg_check_dir_size(struct ubifs_info *c,
+ const struct inode *dir) { return 0; }
+static inline int dbg_check_tnc(struct ubifs_info *c, int extra) { return 0; }
+static inline int dbg_check_idx_size(struct ubifs_info *c,
+ long long idx_size) { return 0; }
+static inline int dbg_check_filesystem(struct ubifs_info *c) { return 0; }
+static inline void dbg_check_heap(struct ubifs_info *c,
+ struct ubifs_lpt_heap *heap,
+ int cat, int add_pos) { return; }
+static inline int dbg_check_lpt_nodes(struct ubifs_info *c,
+ struct ubifs_cnode *cnode, int row, int col) { return 0; }
+static inline int dbg_check_inode_size(struct ubifs_info *c,
+ const struct inode *inode,
+ loff_t size) { return 0; }
+static inline int
+dbg_check_data_nodes_order(struct ubifs_info *c,
+ struct list_head *head) { return 0; }
+static inline int
+dbg_check_nondata_nodes_order(struct ubifs_info *c,
+ struct list_head *head) { return 0; }
+
+static inline int dbg_force_in_the_gaps(void) { return 0; }
+#define dbg_force_in_the_gaps_enabled 0
+#define dbg_failure_mode 0
+
+static inline int dbg_debugfs_init(void) { return 0; }
+static inline void dbg_debugfs_exit(void) { return; }
+static inline int dbg_debugfs_init_fs(struct ubifs_info *c) { return 0; }
+static inline int dbg_debugfs_exit_fs(struct ubifs_info *c) { return 0; }
#endif /* !CONFIG_UBIFS_FS_DEBUG */
#endif /* !__UBIFS_DEBUG_H__ */
dbg_gen("syncing inode %lu", inode->i_ino);
+ if (inode->i_sb->s_flags & MS_RDONLY)
+ return 0;
+
/*
* VFS has already synchronized dirty pages for this inode. Synchronize
* the inode unless this is a 'datasync()' call.
handler = xattr_resolve_name(dentry->d_sb->s_xattr, &name);
if (!handler)
return -EOPNOTSUPP;
- return handler->set(dentry, name, value, size, 0, handler->flags);
+ return handler->set(dentry, name, value, size, flags, handler->flags);
}
/*
size_t nbytes, offset;
gfp_t gfp_mask = xb_to_gfp(flags);
unsigned short page_count, i;
- pgoff_t first;
xfs_off_t end;
int error;
return error;
offset = bp->b_offset;
- first = bp->b_file_offset >> PAGE_SHIFT;
bp->b_flags |= _XBF_PAGES;
for (i = 0; i < bp->b_page_count; i++) {
xfs_off_t ioff,
size_t isize)
{
- struct backing_dev_info *bdi;
-
if (bdi_read_congested(target->bt_bdi))
return;
if (atomic_read(&bp->b_pin_count) && (bp->b_flags & XBF_STALE))
xfs_log_force(bp->b_target->bt_mount, 0);
- if (atomic_read(&bp->b_io_remaining))
- blk_flush_plug(current);
down(&bp->b_sema);
XB_SET_OWNER(bp);
{
trace_xfs_buf_iowait(bp, _RET_IP_);
- if (atomic_read(&bp->b_io_remaining))
- blk_flush_plug(current);
wait_for_completion(&bp->b_iowait);
trace_xfs_buf_iowait_done(bp, _RET_IP_);
do {
long age = xfs_buf_age_centisecs * msecs_to_jiffies(10);
long tout = xfs_buf_timer_centisecs * msecs_to_jiffies(10);
- int count = 0;
struct list_head tmp;
+ struct blk_plug plug;
if (unlikely(freezing(current))) {
set_bit(XBT_FORCE_SLEEP, &target->bt_flags);
xfs_buf_delwri_split(target, &tmp, age);
list_sort(NULL, &tmp, xfs_buf_cmp);
+
+ blk_start_plug(&plug);
while (!list_empty(&tmp)) {
struct xfs_buf *bp;
bp = list_first_entry(&tmp, struct xfs_buf, b_list);
list_del_init(&bp->b_list);
xfs_bdstrat_cb(bp);
- count++;
}
- if (count)
- blk_flush_plug(current);
-
+ blk_finish_plug(&plug);
} while (!kthread_should_stop());
return 0;
int pincount = 0;
LIST_HEAD(tmp_list);
LIST_HEAD(wait_list);
+ struct blk_plug plug;
xfs_buf_runall_queues(xfsconvertd_workqueue);
xfs_buf_runall_queues(xfsdatad_workqueue);
* we do that after issuing all the IO.
*/
list_sort(NULL, &tmp_list, xfs_buf_cmp);
+
+ blk_start_plug(&plug);
while (!list_empty(&tmp_list)) {
bp = list_first_entry(&tmp_list, struct xfs_buf, b_list);
ASSERT(target == bp->b_target);
}
xfs_bdstrat_cb(bp);
}
+ blk_finish_plug(&plug);
if (wait) {
- /* Expedite and wait for IO to complete. */
- blk_flush_plug(current);
+ /* Wait for IO to complete. */
while (!list_empty(&wait_list)) {
bp = list_first_entry(&wait_list, struct xfs_buf, b_list);
/*
* XFS logging functions
*/
-static int
+static void
__xfs_printk(
const char *level,
const struct xfs_mount *mp,
struct va_format *vaf)
{
if (mp && mp->m_fsname)
- return printk("%sXFS (%s): %pV\n", level, mp->m_fsname, vaf);
- return printk("%sXFS: %pV\n", level, vaf);
+ printk("%sXFS (%s): %pV\n", level, mp->m_fsname, vaf);
+ printk("%sXFS: %pV\n", level, vaf);
}
-int xfs_printk(
+void xfs_printk(
const char *level,
const struct xfs_mount *mp,
const char *fmt, ...)
{
struct va_format vaf;
va_list args;
- int r;
va_start(args, fmt);
vaf.fmt = fmt;
vaf.va = &args;
- r = __xfs_printk(level, mp, &vaf);
+ __xfs_printk(level, mp, &vaf);
va_end(args);
-
- return r;
}
#define define_xfs_printk_level(func, kern_level) \
-int func(const struct xfs_mount *mp, const char *fmt, ...) \
+void func(const struct xfs_mount *mp, const char *fmt, ...) \
{ \
struct va_format vaf; \
va_list args; \
- int r; \
\
va_start(args, fmt); \
\
vaf.fmt = fmt; \
vaf.va = &args; \
\
- r = __xfs_printk(kern_level, mp, &vaf); \
+ __xfs_printk(kern_level, mp, &vaf); \
va_end(args); \
- \
- return r; \
} \
define_xfs_printk_level(xfs_emerg, KERN_EMERG);
define_xfs_printk_level(xfs_debug, KERN_DEBUG);
#endif
-int
+void
xfs_alert_tag(
const struct xfs_mount *mp,
int panic_tag,
struct va_format vaf;
va_list args;
int do_panic = 0;
- int r;
if (xfs_panic_mask && (xfs_panic_mask & panic_tag)) {
xfs_printk(KERN_ALERT, mp,
vaf.fmt = fmt;
vaf.va = &args;
- r = __xfs_printk(KERN_ALERT, mp, &vaf);
+ __xfs_printk(KERN_ALERT, mp, &vaf);
va_end(args);
BUG_ON(do_panic);
-
- return r;
}
void
struct xfs_mount;
-extern int xfs_printk(const char *level, const struct xfs_mount *mp,
+extern void xfs_printk(const char *level, const struct xfs_mount *mp,
const char *fmt, ...)
__attribute__ ((format (printf, 3, 4)));
-extern int xfs_emerg(const struct xfs_mount *mp, const char *fmt, ...)
+extern void xfs_emerg(const struct xfs_mount *mp, const char *fmt, ...)
__attribute__ ((format (printf, 2, 3)));
-extern int xfs_alert(const struct xfs_mount *mp, const char *fmt, ...)
+extern void xfs_alert(const struct xfs_mount *mp, const char *fmt, ...)
__attribute__ ((format (printf, 2, 3)));
-extern int xfs_alert_tag(const struct xfs_mount *mp, int tag,
+extern void xfs_alert_tag(const struct xfs_mount *mp, int tag,
const char *fmt, ...)
__attribute__ ((format (printf, 3, 4)));
-extern int xfs_crit(const struct xfs_mount *mp, const char *fmt, ...)
+extern void xfs_crit(const struct xfs_mount *mp, const char *fmt, ...)
__attribute__ ((format (printf, 2, 3)));
-extern int xfs_err(const struct xfs_mount *mp, const char *fmt, ...)
+extern void xfs_err(const struct xfs_mount *mp, const char *fmt, ...)
__attribute__ ((format (printf, 2, 3)));
-extern int xfs_warn(const struct xfs_mount *mp, const char *fmt, ...)
+extern void xfs_warn(const struct xfs_mount *mp, const char *fmt, ...)
__attribute__ ((format (printf, 2, 3)));
-extern int xfs_notice(const struct xfs_mount *mp, const char *fmt, ...)
+extern void xfs_notice(const struct xfs_mount *mp, const char *fmt, ...)
__attribute__ ((format (printf, 2, 3)));
-extern int xfs_info(const struct xfs_mount *mp, const char *fmt, ...)
+extern void xfs_info(const struct xfs_mount *mp, const char *fmt, ...)
__attribute__ ((format (printf, 2, 3)));
#ifdef DEBUG
-extern int xfs_debug(const struct xfs_mount *mp, const char *fmt, ...)
+extern void xfs_debug(const struct xfs_mount *mp, const char *fmt, ...)
__attribute__ ((format (printf, 2, 3)));
#else
-#define xfs_debug(mp, fmt, ...) (0)
+static inline void xfs_debug(const struct xfs_mount *mp, const char *fmt, ...)
+{
+}
#endif
extern void assfail(char *expr, char *f, int l);
return 0;
}
-/*
- * XFS AIL push thread support
- */
-void
-xfsaild_wakeup(
- struct xfs_ail *ailp,
- xfs_lsn_t threshold_lsn)
-{
- /* only ever move the target forwards */
- if (XFS_LSN_CMP(threshold_lsn, ailp->xa_target) > 0) {
- ailp->xa_target = threshold_lsn;
- wake_up_process(ailp->xa_task);
- }
-}
-
-STATIC int
-xfsaild(
- void *data)
-{
- struct xfs_ail *ailp = data;
- xfs_lsn_t last_pushed_lsn = 0;
- long tout = 0; /* milliseconds */
-
- while (!kthread_should_stop()) {
- /*
- * for short sleeps indicating congestion, don't allow us to
- * get woken early. Otherwise all we do is bang on the AIL lock
- * without making progress.
- */
- if (tout && tout <= 20)
- __set_current_state(TASK_KILLABLE);
- else
- __set_current_state(TASK_INTERRUPTIBLE);
- schedule_timeout(tout ?
- msecs_to_jiffies(tout) : MAX_SCHEDULE_TIMEOUT);
-
- /* swsusp */
- try_to_freeze();
-
- ASSERT(ailp->xa_mount->m_log);
- if (XFS_FORCED_SHUTDOWN(ailp->xa_mount))
- continue;
-
- tout = xfsaild_push(ailp, &last_pushed_lsn);
- }
-
- return 0;
-} /* xfsaild */
-
-int
-xfsaild_start(
- struct xfs_ail *ailp)
-{
- ailp->xa_target = 0;
- ailp->xa_task = kthread_run(xfsaild, ailp, "xfsaild/%s",
- ailp->xa_mount->m_fsname);
- if (IS_ERR(ailp->xa_task))
- return -PTR_ERR(ailp->xa_task);
- return 0;
-}
-
-void
-xfsaild_stop(
- struct xfs_ail *ailp)
-{
- kthread_stop(ailp->xa_task);
-}
-
-
/* Catch misguided souls that try to use this interface on XFS */
STATIC struct inode *
xfs_fs_alloc_inode(
return -error;
if (laptop_mode) {
- int prev_sync_seq = mp->m_sync_seq;
-
/*
* The disk must be active because we're syncing.
* We schedule xfssyncd now (now that the disk is
* active) instead of later (when it might not be).
*/
- wake_up_process(mp->m_sync_task);
- /*
- * We have to wait for the sync iteration to complete.
- * If we don't, the disk activity caused by the sync
- * will come after the sync is completed, and that
- * triggers another sync from laptop mode.
- */
- wait_event(mp->m_wait_single_sync_task,
- mp->m_sync_seq != prev_sync_seq);
+ flush_delayed_work_sync(&mp->m_sync_work);
}
return 0;
spin_lock_init(&mp->m_sb_lock);
mutex_init(&mp->m_growlock);
atomic_set(&mp->m_active_trans, 0);
- INIT_LIST_HEAD(&mp->m_sync_list);
- spin_lock_init(&mp->m_sync_lock);
- init_waitqueue_head(&mp->m_wait_single_sync_task);
mp->m_super = sb;
sb->s_fs_info = mp;
}
+STATIC int __init
+xfs_init_workqueues(void)
+{
+ /*
+ * max_active is set to 8 to give enough concurency to allow
+ * multiple work operations on each CPU to run. This allows multiple
+ * filesystems to be running sync work concurrently, and scales with
+ * the number of CPUs in the system.
+ */
+ xfs_syncd_wq = alloc_workqueue("xfssyncd", WQ_CPU_INTENSIVE, 8);
+ if (!xfs_syncd_wq)
+ goto out;
+
+ xfs_ail_wq = alloc_workqueue("xfsail", WQ_CPU_INTENSIVE, 8);
+ if (!xfs_ail_wq)
+ goto out_destroy_syncd;
+
+ return 0;
+
+out_destroy_syncd:
+ destroy_workqueue(xfs_syncd_wq);
+out:
+ return -ENOMEM;
+}
+
+STATIC void
+xfs_destroy_workqueues(void)
+{
+ destroy_workqueue(xfs_ail_wq);
+ destroy_workqueue(xfs_syncd_wq);
+}
+
STATIC int __init
init_xfs_fs(void)
{
if (error)
goto out;
- error = xfs_mru_cache_init();
+ error = xfs_init_workqueues();
if (error)
goto out_destroy_zones;
+ error = xfs_mru_cache_init();
+ if (error)
+ goto out_destroy_wq;
+
error = xfs_filestream_init();
if (error)
goto out_mru_cache_uninit;
if (error)
goto out_cleanup_procfs;
+ error = xfs_init_workqueues();
+ if (error)
+ goto out_sysctl_unregister;
+
vfs_initquota();
error = register_filesystem(&xfs_fs_type);
xfs_filestream_uninit();
out_mru_cache_uninit:
xfs_mru_cache_uninit();
+ out_destroy_wq:
+ xfs_destroy_workqueues();
out_destroy_zones:
xfs_destroy_zones();
out:
xfs_buf_terminate();
xfs_filestream_uninit();
xfs_mru_cache_uninit();
+ xfs_destroy_workqueues();
xfs_destroy_zones();
}
#include "xfs_log.h"
#include "xfs_inum.h"
#include "xfs_trans.h"
+#include "xfs_trans_priv.h"
#include "xfs_sb.h"
#include "xfs_ag.h"
#include "xfs_mount.h"
#include <linux/kthread.h>
#include <linux/freezer.h>
+struct workqueue_struct *xfs_syncd_wq; /* sync workqueue */
+
/*
* The inode lookup is done in batches to keep the amount of lock traffic and
* radix tree lookups to a minimum. The batch size is a trade off between
xfs_unmountfs_writesb(mp);
}
-/*
- * Enqueue a work item to be picked up by the vfs xfssyncd thread.
- * Doing this has two advantages:
- * - It saves on stack space, which is tight in certain situations
- * - It can be used (with care) as a mechanism to avoid deadlocks.
- * Flushing while allocating in a full filesystem requires both.
- */
-STATIC void
-xfs_syncd_queue_work(
- struct xfs_mount *mp,
- void *data,
- void (*syncer)(struct xfs_mount *, void *),
- struct completion *completion)
-{
- struct xfs_sync_work *work;
-
- work = kmem_alloc(sizeof(struct xfs_sync_work), KM_SLEEP);
- INIT_LIST_HEAD(&work->w_list);
- work->w_syncer = syncer;
- work->w_data = data;
- work->w_mount = mp;
- work->w_completion = completion;
- spin_lock(&mp->m_sync_lock);
- list_add_tail(&work->w_list, &mp->m_sync_list);
- spin_unlock(&mp->m_sync_lock);
- wake_up_process(mp->m_sync_task);
-}
-
-/*
- * Flush delayed allocate data, attempting to free up reserved space
- * from existing allocations. At this point a new allocation attempt
- * has failed with ENOSPC and we are in the process of scratching our
- * heads, looking about for more room...
- */
-STATIC void
-xfs_flush_inodes_work(
- struct xfs_mount *mp,
- void *arg)
-{
- struct inode *inode = arg;
- xfs_sync_data(mp, SYNC_TRYLOCK);
- xfs_sync_data(mp, SYNC_TRYLOCK | SYNC_WAIT);
- iput(inode);
-}
-
-void
-xfs_flush_inodes(
- xfs_inode_t *ip)
+static void
+xfs_syncd_queue_sync(
+ struct xfs_mount *mp)
{
- struct inode *inode = VFS_I(ip);
- DECLARE_COMPLETION_ONSTACK(completion);
-
- igrab(inode);
- xfs_syncd_queue_work(ip->i_mount, inode, xfs_flush_inodes_work, &completion);
- wait_for_completion(&completion);
- xfs_log_force(ip->i_mount, XFS_LOG_SYNC);
+ queue_delayed_work(xfs_syncd_wq, &mp->m_sync_work,
+ msecs_to_jiffies(xfs_syncd_centisecs * 10));
}
/*
*/
STATIC void
xfs_sync_worker(
- struct xfs_mount *mp,
- void *unused)
+ struct work_struct *work)
{
+ struct xfs_mount *mp = container_of(to_delayed_work(work),
+ struct xfs_mount, m_sync_work);
int error;
if (!(mp->m_flags & XFS_MOUNT_RDONLY)) {
error = xfs_fs_log_dummy(mp);
else
xfs_log_force(mp, 0);
- xfs_reclaim_inodes(mp, 0);
error = xfs_qm_sync(mp, SYNC_TRYLOCK);
+
+ /* start pushing all the metadata that is currently dirty */
+ xfs_ail_push_all(mp->m_ail);
}
- mp->m_sync_seq++;
- wake_up(&mp->m_wait_single_sync_task);
+
+ /* queue us up again */
+ xfs_syncd_queue_sync(mp);
}
-STATIC int
-xfssyncd(
- void *arg)
+/*
+ * Queue a new inode reclaim pass if there are reclaimable inodes and there
+ * isn't a reclaim pass already in progress. By default it runs every 5s based
+ * on the xfs syncd work default of 30s. Perhaps this should have it's own
+ * tunable, but that can be done if this method proves to be ineffective or too
+ * aggressive.
+ */
+static void
+xfs_syncd_queue_reclaim(
+ struct xfs_mount *mp)
{
- struct xfs_mount *mp = arg;
- long timeleft;
- xfs_sync_work_t *work, *n;
- LIST_HEAD (tmp);
-
- set_freezable();
- timeleft = xfs_syncd_centisecs * msecs_to_jiffies(10);
- for (;;) {
- if (list_empty(&mp->m_sync_list))
- timeleft = schedule_timeout_interruptible(timeleft);
- /* swsusp */
- try_to_freeze();
- if (kthread_should_stop() && list_empty(&mp->m_sync_list))
- break;
- spin_lock(&mp->m_sync_lock);
- /*
- * We can get woken by laptop mode, to do a sync -
- * that's the (only!) case where the list would be
- * empty with time remaining.
- */
- if (!timeleft || list_empty(&mp->m_sync_list)) {
- if (!timeleft)
- timeleft = xfs_syncd_centisecs *
- msecs_to_jiffies(10);
- INIT_LIST_HEAD(&mp->m_sync_work.w_list);
- list_add_tail(&mp->m_sync_work.w_list,
- &mp->m_sync_list);
- }
- list_splice_init(&mp->m_sync_list, &tmp);
- spin_unlock(&mp->m_sync_lock);
+ /*
+ * We can have inodes enter reclaim after we've shut down the syncd
+ * workqueue during unmount, so don't allow reclaim work to be queued
+ * during unmount.
+ */
+ if (!(mp->m_super->s_flags & MS_ACTIVE))
+ return;
- list_for_each_entry_safe(work, n, &tmp, w_list) {
- (*work->w_syncer)(mp, work->w_data);
- list_del(&work->w_list);
- if (work == &mp->m_sync_work)
- continue;
- if (work->w_completion)
- complete(work->w_completion);
- kmem_free(work);
- }
+ rcu_read_lock();
+ if (radix_tree_tagged(&mp->m_perag_tree, XFS_ICI_RECLAIM_TAG)) {
+ queue_delayed_work(xfs_syncd_wq, &mp->m_reclaim_work,
+ msecs_to_jiffies(xfs_syncd_centisecs / 6 * 10));
}
+ rcu_read_unlock();
+}
- return 0;
+/*
+ * This is a fast pass over the inode cache to try to get reclaim moving on as
+ * many inodes as possible in a short period of time. It kicks itself every few
+ * seconds, as well as being kicked by the inode cache shrinker when memory
+ * goes low. It scans as quickly as possible avoiding locked inodes or those
+ * already being flushed, and once done schedules a future pass.
+ */
+STATIC void
+xfs_reclaim_worker(
+ struct work_struct *work)
+{
+ struct xfs_mount *mp = container_of(to_delayed_work(work),
+ struct xfs_mount, m_reclaim_work);
+
+ xfs_reclaim_inodes(mp, SYNC_TRYLOCK);
+ xfs_syncd_queue_reclaim(mp);
+}
+
+/*
+ * Flush delayed allocate data, attempting to free up reserved space
+ * from existing allocations. At this point a new allocation attempt
+ * has failed with ENOSPC and we are in the process of scratching our
+ * heads, looking about for more room.
+ *
+ * Queue a new data flush if there isn't one already in progress and
+ * wait for completion of the flush. This means that we only ever have one
+ * inode flush in progress no matter how many ENOSPC events are occurring and
+ * so will prevent the system from bogging down due to every concurrent
+ * ENOSPC event scanning all the active inodes in the system for writeback.
+ */
+void
+xfs_flush_inodes(
+ struct xfs_inode *ip)
+{
+ struct xfs_mount *mp = ip->i_mount;
+
+ queue_work(xfs_syncd_wq, &mp->m_flush_work);
+ flush_work_sync(&mp->m_flush_work);
+}
+
+STATIC void
+xfs_flush_worker(
+ struct work_struct *work)
+{
+ struct xfs_mount *mp = container_of(work,
+ struct xfs_mount, m_flush_work);
+
+ xfs_sync_data(mp, SYNC_TRYLOCK);
+ xfs_sync_data(mp, SYNC_TRYLOCK | SYNC_WAIT);
}
int
xfs_syncd_init(
struct xfs_mount *mp)
{
- mp->m_sync_work.w_syncer = xfs_sync_worker;
- mp->m_sync_work.w_mount = mp;
- mp->m_sync_work.w_completion = NULL;
- mp->m_sync_task = kthread_run(xfssyncd, mp, "xfssyncd/%s", mp->m_fsname);
- if (IS_ERR(mp->m_sync_task))
- return -PTR_ERR(mp->m_sync_task);
+ INIT_WORK(&mp->m_flush_work, xfs_flush_worker);
+ INIT_DELAYED_WORK(&mp->m_sync_work, xfs_sync_worker);
+ INIT_DELAYED_WORK(&mp->m_reclaim_work, xfs_reclaim_worker);
+
+ xfs_syncd_queue_sync(mp);
+ xfs_syncd_queue_reclaim(mp);
+
return 0;
}
xfs_syncd_stop(
struct xfs_mount *mp)
{
- kthread_stop(mp->m_sync_task);
+ cancel_delayed_work_sync(&mp->m_sync_work);
+ cancel_delayed_work_sync(&mp->m_reclaim_work);
+ cancel_work_sync(&mp->m_flush_work);
}
void
XFS_INO_TO_AGNO(ip->i_mount, ip->i_ino),
XFS_ICI_RECLAIM_TAG);
spin_unlock(&ip->i_mount->m_perag_lock);
+
+ /* schedule periodic background inode reclaim */
+ xfs_syncd_queue_reclaim(ip->i_mount);
+
trace_xfs_perag_set_reclaim(ip->i_mount, pag->pag_agno,
-1, _RET_IP_);
}
}
/*
- * Shrinker infrastructure.
+ * Inode cache shrinker.
+ *
+ * When called we make sure that there is a background (fast) inode reclaim in
+ * progress, while we will throttle the speed of reclaim via doiing synchronous
+ * reclaim of inodes. That means if we come across dirty inodes, we wait for
+ * them to be cleaned, which we hope will not be very long due to the
+ * background walker having already kicked the IO off on those dirty inodes.
*/
static int
xfs_reclaim_inode_shrink(
mp = container_of(shrink, struct xfs_mount, m_inode_shrink);
if (nr_to_scan) {
+ /* kick background reclaimer and push the AIL */
+ xfs_syncd_queue_reclaim(mp);
+ xfs_ail_push_all(mp->m_ail);
+
if (!(gfp_mask & __GFP_FS))
return -1;
- xfs_reclaim_inodes_ag(mp, SYNC_TRYLOCK, &nr_to_scan);
+ xfs_reclaim_inodes_ag(mp, SYNC_TRYLOCK | SYNC_WAIT,
+ &nr_to_scan);
/* terminate if we don't exhaust the scan */
if (nr_to_scan > 0)
return -1;
#define SYNC_WAIT 0x0001 /* wait for i/o to complete */
#define SYNC_TRYLOCK 0x0002 /* only try to lock inodes */
+extern struct workqueue_struct *xfs_syncd_wq; /* sync workqueue */
+
int xfs_syncd_init(struct xfs_mount *mp);
void xfs_syncd_stop(struct xfs_mount *mp);
struct xfs_quotainfo *q = mp->m_quotainfo;
int recl;
struct xfs_dquot *dqp;
- int niters;
int error;
if (!q)
return 0;
- niters = 0;
again:
mutex_lock(&q->qi_dqlist_lock);
list_for_each_entry(dqp, &q->qi_dqlist, q_mplist) {
{
xfs_buf_t *bp;
int error;
- int notcommitted;
- int incr;
int type;
ASSERT(blkcnt > 0);
- notcommitted = 0;
- incr = (blkcnt > XFS_QM_MAX_DQCLUSTER_LOGSZ) ?
- XFS_QM_MAX_DQCLUSTER_LOGSZ : blkcnt;
type = flags & XFS_QMOPT_UQUOTA ? XFS_DQ_USER :
(flags & XFS_QMOPT_PQUOTA ? XFS_DQ_PROJ : XFS_DQ_GROUP);
error = 0;
* block in the dquot/xqm code.
*/
#define XFS_DQUOT_CLUSTER_SIZE_FSB (xfs_filblks_t)1
-/*
- * When doing a quotacheck, we log dquot clusters of this many FSBs at most
- * in a single transaction. We don't want to ask for too huge a log reservation.
- */
-#define XFS_QM_MAX_DQCLUSTER_LOGSZ 3
typedef xfs_dqhash_t xfs_dqlist_t;
{
int error;
uint qf;
- uint accflags;
__int64_t sbflags;
flags &= (XFS_ALL_QUOTA_ACCT | XFS_ALL_QUOTA_ENFD);
/*
* Switching on quota accounting must be done at mount time.
*/
- accflags = flags & XFS_ALL_QUOTA_ACCT;
flags &= ~(XFS_ALL_QUOTA_ACCT);
sbflags = 0;
memset(&args, 0, sizeof(xfs_alloc_arg_t));
args.tp = tp;
args.mp = tp->t_mountp;
+
+ /*
+ * validate that the block number is legal - the enables us to detect
+ * and handle a silent filesystem corruption rather than crashing.
+ */
args.agno = XFS_FSB_TO_AGNO(args.mp, bno);
- ASSERT(args.agno < args.mp->m_sb.sb_agcount);
+ if (args.agno >= args.mp->m_sb.sb_agcount)
+ return EFSCORRUPTED;
+
args.agbno = XFS_FSB_TO_AGBNO(args.mp, bno);
+ if (args.agbno >= args.mp->m_sb.sb_agblocks)
+ return EFSCORRUPTED;
+
args.pag = xfs_perag_get(args.mp, args.agno);
- if ((error = xfs_alloc_fix_freelist(&args, XFS_ALLOC_FLAG_FREEING)))
+ ASSERT(args.pag);
+
+ error = xfs_alloc_fix_freelist(&args, XFS_ALLOC_FLAG_FREEING);
+ if (error)
goto error0;
-#ifdef DEBUG
- ASSERT(args.agbp != NULL);
- ASSERT((args.agbno + len) <=
- be32_to_cpu(XFS_BUF_TO_AGF(args.agbp)->agf_length));
-#endif
+
+ /* validate the extent size is legal now we have the agf locked */
+ if (args.agbno + len >
+ be32_to_cpu(XFS_BUF_TO_AGF(args.agbp)->agf_length)) {
+ error = EFSCORRUPTED;
+ goto error0;
+ }
+
error = xfs_free_ag_extent(tp, args.agbp, args.agno, args.agbno, len, 0);
error0:
xfs_perag_put(args.pag);
return nvecs;
}
+/*
+ * xfs_inode_item_format_extents - convert in-core extents to on-disk form
+ *
+ * For either the data or attr fork in extent format, we need to endian convert
+ * the in-core extent as we place them into the on-disk inode. In this case, we
+ * need to do this conversion before we write the extents into the log. Because
+ * we don't have the disk inode to write into here, we allocate a buffer and
+ * format the extents into it via xfs_iextents_copy(). We free the buffer in
+ * the unlock routine after the copy for the log has been made.
+ *
+ * In the case of the data fork, the in-core and on-disk fork sizes can be
+ * different due to delayed allocation extents. We only log on-disk extents
+ * here, so always use the physical fork size to determine the size of the
+ * buffer we need to allocate.
+ */
+STATIC void
+xfs_inode_item_format_extents(
+ struct xfs_inode *ip,
+ struct xfs_log_iovec *vecp,
+ int whichfork,
+ int type)
+{
+ xfs_bmbt_rec_t *ext_buffer;
+
+ ext_buffer = kmem_alloc(XFS_IFORK_SIZE(ip, whichfork), KM_SLEEP);
+ if (whichfork == XFS_DATA_FORK)
+ ip->i_itemp->ili_extents_buf = ext_buffer;
+ else
+ ip->i_itemp->ili_aextents_buf = ext_buffer;
+
+ vecp->i_addr = ext_buffer;
+ vecp->i_len = xfs_iextents_copy(ip, ext_buffer, whichfork);
+ vecp->i_type = type;
+}
+
/*
* This is called to fill in the vector of log iovecs for the
* given inode log item. It fills the first item with an inode
struct xfs_inode *ip = iip->ili_inode;
uint nvecs;
size_t data_bytes;
- xfs_bmbt_rec_t *ext_buffer;
xfs_mount_t *mp;
vecp->i_addr = &iip->ili_format;
} else
#endif
{
- /*
- * There are delayed allocation extents
- * in the inode, or we need to convert
- * the extents to on disk format.
- * Use xfs_iextents_copy()
- * to copy only the real extents into
- * a separate buffer. We'll free the
- * buffer in the unlock routine.
- */
- ext_buffer = kmem_alloc(ip->i_df.if_bytes,
- KM_SLEEP);
- iip->ili_extents_buf = ext_buffer;
- vecp->i_addr = ext_buffer;
- vecp->i_len = xfs_iextents_copy(ip, ext_buffer,
- XFS_DATA_FORK);
- vecp->i_type = XLOG_REG_TYPE_IEXT;
+ xfs_inode_item_format_extents(ip, vecp,
+ XFS_DATA_FORK, XLOG_REG_TYPE_IEXT);
}
ASSERT(vecp->i_len <= ip->i_df.if_bytes);
iip->ili_format.ilf_dsize = vecp->i_len;
*/
vecp->i_addr = ip->i_afp->if_u1.if_extents;
vecp->i_len = ip->i_afp->if_bytes;
+ vecp->i_type = XLOG_REG_TYPE_IATTR_EXT;
#else
ASSERT(iip->ili_aextents_buf == NULL);
- /*
- * Need to endian flip before logging
- */
- ext_buffer = kmem_alloc(ip->i_afp->if_bytes,
- KM_SLEEP);
- iip->ili_aextents_buf = ext_buffer;
- vecp->i_addr = ext_buffer;
- vecp->i_len = xfs_iextents_copy(ip, ext_buffer,
- XFS_ATTR_FORK);
+ xfs_inode_item_format_extents(ip, vecp,
+ XFS_ATTR_FORK, XLOG_REG_TYPE_IATTR_EXT);
#endif
- vecp->i_type = XLOG_REG_TYPE_IATTR_EXT;
iip->ili_format.ilf_asize = vecp->i_len;
vecp++;
nvecs++;
xfs_agi_t *agi; /* agi header data */
xfs_agino_t agino; /* inode # in allocation group */
xfs_agnumber_t agno; /* allocation group number */
- xfs_daddr_t bno; /* inode cluster start daddr */
int chunkidx; /* current index into inode chunk */
int clustidx; /* current index into inode cluster */
xfs_btree_cur_t *cur; /* btree cursor for ialloc btree */
mp->m_sb.sb_inopblog);
}
ino = XFS_AGINO_TO_INO(mp, agno, agino);
- bno = XFS_AGB_TO_DADDR(mp, agno, agbno);
/*
* Skip if this inode is free.
*/
break;
case XLOG_STATE_COVER_NEED:
case XLOG_STATE_COVER_NEED2:
- if (!xfs_trans_ail_tail(log->l_ailp) &&
+ if (!xfs_ail_min_lsn(log->l_ailp) &&
xlog_iclogs_empty(log)) {
if (log->l_covered_state == XLOG_STATE_COVER_NEED)
log->l_covered_state = XLOG_STATE_COVER_DONE;
xfs_lsn_t tail_lsn;
struct log *log = mp->m_log;
- tail_lsn = xfs_trans_ail_tail(mp->m_ail);
+ tail_lsn = xfs_ail_min_lsn(mp->m_ail);
if (!tail_lsn)
tail_lsn = atomic64_read(&log->l_last_sync_lsn);
* the filesystem is shutting down.
*/
if (!XLOG_FORCED_SHUTDOWN(log))
- xfs_trans_ail_push(log->l_ailp, threshold_lsn);
+ xfs_ail_push(log->l_ailp, threshold_lsn);
}
/*
xfs_emerg(log->l_mp, "%s: invalid ptr", __func__);
}
+/*
+ * Check to make sure the grant write head didn't just over lap the tail. If
+ * the cycles are the same, we can't be overlapping. Otherwise, make sure that
+ * the cycles differ by exactly one and check the byte count.
+ *
+ * This check is run unlocked, so can give false positives. Rather than assert
+ * on failures, use a warn-once flag and a panic tag to allow the admin to
+ * determine if they want to panic the machine when such an error occurs. For
+ * debug kernels this will have the same effect as using an assert but, unlinke
+ * an assert, it can be turned off at runtime.
+ */
STATIC void
xlog_verify_grant_tail(
struct log *log)
int tail_cycle, tail_blocks;
int cycle, space;
- /*
- * Check to make sure the grant write head didn't just over lap the
- * tail. If the cycles are the same, we can't be overlapping.
- * Otherwise, make sure that the cycles differ by exactly one and
- * check the byte count.
- */
xlog_crack_grant_head(&log->l_grant_write_head, &cycle, &space);
xlog_crack_atomic_lsn(&log->l_tail_lsn, &tail_cycle, &tail_blocks);
if (tail_cycle != cycle) {
- ASSERT(cycle - 1 == tail_cycle);
- ASSERT(space <= BBTOB(tail_blocks));
+ if (cycle - 1 != tail_cycle &&
+ !(log->l_flags & XLOG_TAIL_WARN)) {
+ xfs_alert_tag(log->l_mp, XFS_PTAG_LOGRES,
+ "%s: cycle - 1 != tail_cycle", __func__);
+ log->l_flags |= XLOG_TAIL_WARN;
+ }
+
+ if (space > BBTOB(tail_blocks) &&
+ !(log->l_flags & XLOG_TAIL_WARN)) {
+ xfs_alert_tag(log->l_mp, XFS_PTAG_LOGRES,
+ "%s: space > BBTOB(tail_blocks)", __func__);
+ log->l_flags |= XLOG_TAIL_WARN;
+ }
}
}
#define XLOG_RECOVERY_NEEDED 0x4 /* log was recovered */
#define XLOG_IO_ERROR 0x8 /* log hit an I/O error, and being
shutdown */
+#define XLOG_TAIL_WARN 0x10 /* log tail verify warning issued */
#ifdef __KERNEL__
/*
struct mutex m_icsb_mutex; /* balancer sync lock */
#endif
struct xfs_mru_cache *m_filestream; /* per-mount filestream data */
- struct task_struct *m_sync_task; /* generalised sync thread */
- xfs_sync_work_t m_sync_work; /* work item for VFS_SYNC */
- struct list_head m_sync_list; /* sync thread work item list */
- spinlock_t m_sync_lock; /* work item list lock */
- int m_sync_seq; /* sync thread generation no. */
- wait_queue_head_t m_wait_single_sync_task;
+ struct delayed_work m_sync_work; /* background sync work */
+ struct delayed_work m_reclaim_work; /* background inode reclaim */
+ struct work_struct m_flush_work; /* background inode flush */
__int64_t m_update_flags; /* sb flags we need to update
on the next remount,rw */
struct shrinker m_inode_shrink; /* inode reclaim shrinker */
#include "xfs_trans_priv.h"
#include "xfs_error.h"
-STATIC void xfs_ail_splice(struct xfs_ail *, struct list_head *, xfs_lsn_t);
-STATIC void xfs_ail_delete(struct xfs_ail *, xfs_log_item_t *);
-STATIC xfs_log_item_t * xfs_ail_min(struct xfs_ail *);
-STATIC xfs_log_item_t * xfs_ail_next(struct xfs_ail *, xfs_log_item_t *);
+struct workqueue_struct *xfs_ail_wq; /* AIL workqueue */
#ifdef DEBUG
-STATIC void xfs_ail_check(struct xfs_ail *, xfs_log_item_t *);
-#else
+/*
+ * Check that the list is sorted as it should be.
+ */
+STATIC void
+xfs_ail_check(
+ struct xfs_ail *ailp,
+ xfs_log_item_t *lip)
+{
+ xfs_log_item_t *prev_lip;
+
+ if (list_empty(&ailp->xa_ail))
+ return;
+
+ /*
+ * Check the next and previous entries are valid.
+ */
+ ASSERT((lip->li_flags & XFS_LI_IN_AIL) != 0);
+ prev_lip = list_entry(lip->li_ail.prev, xfs_log_item_t, li_ail);
+ if (&prev_lip->li_ail != &ailp->xa_ail)
+ ASSERT(XFS_LSN_CMP(prev_lip->li_lsn, lip->li_lsn) <= 0);
+
+ prev_lip = list_entry(lip->li_ail.next, xfs_log_item_t, li_ail);
+ if (&prev_lip->li_ail != &ailp->xa_ail)
+ ASSERT(XFS_LSN_CMP(prev_lip->li_lsn, lip->li_lsn) >= 0);
+
+
+#ifdef XFS_TRANS_DEBUG
+ /*
+ * Walk the list checking lsn ordering, and that every entry has the
+ * XFS_LI_IN_AIL flag set. This is really expensive, so only do it
+ * when specifically debugging the transaction subsystem.
+ */
+ prev_lip = list_entry(&ailp->xa_ail, xfs_log_item_t, li_ail);
+ list_for_each_entry(lip, &ailp->xa_ail, li_ail) {
+ if (&prev_lip->li_ail != &ailp->xa_ail)
+ ASSERT(XFS_LSN_CMP(prev_lip->li_lsn, lip->li_lsn) <= 0);
+ ASSERT((lip->li_flags & XFS_LI_IN_AIL) != 0);
+ prev_lip = lip;
+ }
+#endif /* XFS_TRANS_DEBUG */
+}
+#else /* !DEBUG */
#define xfs_ail_check(a,l)
#endif /* DEBUG */
+/*
+ * Return a pointer to the first item in the AIL. If the AIL is empty, then
+ * return NULL.
+ */
+static xfs_log_item_t *
+xfs_ail_min(
+ struct xfs_ail *ailp)
+{
+ if (list_empty(&ailp->xa_ail))
+ return NULL;
+
+ return list_first_entry(&ailp->xa_ail, xfs_log_item_t, li_ail);
+}
+
+ /*
+ * Return a pointer to the last item in the AIL. If the AIL is empty, then
+ * return NULL.
+ */
+static xfs_log_item_t *
+xfs_ail_max(
+ struct xfs_ail *ailp)
+{
+ if (list_empty(&ailp->xa_ail))
+ return NULL;
+
+ return list_entry(ailp->xa_ail.prev, xfs_log_item_t, li_ail);
+}
+
+/*
+ * Return a pointer to the item which follows the given item in the AIL. If
+ * the given item is the last item in the list, then return NULL.
+ */
+static xfs_log_item_t *
+xfs_ail_next(
+ struct xfs_ail *ailp,
+ xfs_log_item_t *lip)
+{
+ if (lip->li_ail.next == &ailp->xa_ail)
+ return NULL;
+
+ return list_first_entry(&lip->li_ail, xfs_log_item_t, li_ail);
+}
/*
- * This is called by the log manager code to determine the LSN
- * of the tail of the log. This is exactly the LSN of the first
- * item in the AIL. If the AIL is empty, then this function
- * returns 0.
+ * This is called by the log manager code to determine the LSN of the tail of
+ * the log. This is exactly the LSN of the first item in the AIL. If the AIL
+ * is empty, then this function returns 0.
*
- * We need the AIL lock in order to get a coherent read of the
- * lsn of the last item in the AIL.
+ * We need the AIL lock in order to get a coherent read of the lsn of the last
+ * item in the AIL.
*/
xfs_lsn_t
-xfs_trans_ail_tail(
+xfs_ail_min_lsn(
struct xfs_ail *ailp)
{
- xfs_lsn_t lsn;
+ xfs_lsn_t lsn = 0;
xfs_log_item_t *lip;
spin_lock(&ailp->xa_lock);
lip = xfs_ail_min(ailp);
- if (lip == NULL) {
- lsn = (xfs_lsn_t)0;
- } else {
+ if (lip)
lsn = lip->li_lsn;
- }
spin_unlock(&ailp->xa_lock);
return lsn;
}
/*
- * xfs_trans_push_ail
- *
- * This routine is called to move the tail of the AIL forward. It does this by
- * trying to flush items in the AIL whose lsns are below the given
- * threshold_lsn.
- *
- * the push is run asynchronously in a separate thread, so we return the tail
- * of the log right now instead of the tail after the push. This means we will
- * either continue right away, or we will sleep waiting on the async thread to
- * do its work.
- *
- * We do this unlocked - we only need to know whether there is anything in the
- * AIL at the time we are called. We don't need to access the contents of
- * any of the objects, so the lock is not needed.
+ * Return the maximum lsn held in the AIL, or zero if the AIL is empty.
*/
-void
-xfs_trans_ail_push(
- struct xfs_ail *ailp,
- xfs_lsn_t threshold_lsn)
+static xfs_lsn_t
+xfs_ail_max_lsn(
+ struct xfs_ail *ailp)
{
- xfs_log_item_t *lip;
+ xfs_lsn_t lsn = 0;
+ xfs_log_item_t *lip;
- lip = xfs_ail_min(ailp);
- if (lip && !XFS_FORCED_SHUTDOWN(ailp->xa_mount)) {
- if (XFS_LSN_CMP(threshold_lsn, ailp->xa_target) > 0)
- xfsaild_wakeup(ailp, threshold_lsn);
- }
+ spin_lock(&ailp->xa_lock);
+ lip = xfs_ail_max(ailp);
+ if (lip)
+ lsn = lip->li_lsn;
+ spin_unlock(&ailp->xa_lock);
+
+ return lsn;
}
/*
}
/*
- * xfsaild_push does the work of pushing on the AIL. Returning a timeout of
- * zero indicates that the caller should sleep until woken.
+ * splice the log item list into the AIL at the given LSN.
*/
-long
-xfsaild_push(
- struct xfs_ail *ailp,
- xfs_lsn_t *last_lsn)
+static void
+xfs_ail_splice(
+ struct xfs_ail *ailp,
+ struct list_head *list,
+ xfs_lsn_t lsn)
{
- long tout = 0;
- xfs_lsn_t last_pushed_lsn = *last_lsn;
+ xfs_log_item_t *next_lip;
+
+ /* If the list is empty, just insert the item. */
+ if (list_empty(&ailp->xa_ail)) {
+ list_splice(list, &ailp->xa_ail);
+ return;
+ }
+
+ list_for_each_entry_reverse(next_lip, &ailp->xa_ail, li_ail) {
+ if (XFS_LSN_CMP(next_lip->li_lsn, lsn) <= 0)
+ break;
+ }
+
+ ASSERT(&next_lip->li_ail == &ailp->xa_ail ||
+ XFS_LSN_CMP(next_lip->li_lsn, lsn) <= 0);
+
+ list_splice_init(list, &next_lip->li_ail);
+}
+
+/*
+ * Delete the given item from the AIL. Return a pointer to the item.
+ */
+static void
+xfs_ail_delete(
+ struct xfs_ail *ailp,
+ xfs_log_item_t *lip)
+{
+ xfs_ail_check(ailp, lip);
+ list_del(&lip->li_ail);
+ xfs_trans_ail_cursor_clear(ailp, lip);
+}
+
+/*
+ * xfs_ail_worker does the work of pushing on the AIL. It will requeue itself
+ * to run at a later time if there is more work to do to complete the push.
+ */
+STATIC void
+xfs_ail_worker(
+ struct work_struct *work)
+{
+ struct xfs_ail *ailp = container_of(to_delayed_work(work),
+ struct xfs_ail, xa_work);
+ long tout;
xfs_lsn_t target = ailp->xa_target;
xfs_lsn_t lsn;
xfs_log_item_t *lip;
spin_lock(&ailp->xa_lock);
xfs_trans_ail_cursor_init(ailp, cur);
- lip = xfs_trans_ail_cursor_first(ailp, cur, *last_lsn);
+ lip = xfs_trans_ail_cursor_first(ailp, cur, ailp->xa_last_pushed_lsn);
if (!lip || XFS_FORCED_SHUTDOWN(mp)) {
/*
* AIL is empty or our push has reached the end.
*/
xfs_trans_ail_cursor_done(ailp, cur);
spin_unlock(&ailp->xa_lock);
- *last_lsn = 0;
- return tout;
+ ailp->xa_last_pushed_lsn = 0;
+ return;
}
XFS_STATS_INC(xs_push_ail);
case XFS_ITEM_SUCCESS:
XFS_STATS_INC(xs_push_ail_success);
IOP_PUSH(lip);
- last_pushed_lsn = lsn;
+ ailp->xa_last_pushed_lsn = lsn;
break;
case XFS_ITEM_PUSHBUF:
XFS_STATS_INC(xs_push_ail_pushbuf);
IOP_PUSHBUF(lip);
- last_pushed_lsn = lsn;
+ ailp->xa_last_pushed_lsn = lsn;
push_xfsbufd = 1;
break;
case XFS_ITEM_LOCKED:
XFS_STATS_INC(xs_push_ail_locked);
- last_pushed_lsn = lsn;
+ ailp->xa_last_pushed_lsn = lsn;
stuck++;
break;
wake_up_process(mp->m_ddev_targp->bt_task);
}
+ /* assume we have more work to do in a short while */
+ tout = 10;
if (!count) {
/* We're past our target or empty, so idle */
- last_pushed_lsn = 0;
+ ailp->xa_last_pushed_lsn = 0;
+
+ /*
+ * Check for an updated push target before clearing the
+ * XFS_AIL_PUSHING_BIT. If the target changed, we've got more
+ * work to do. Wait a bit longer before starting that work.
+ */
+ smp_rmb();
+ if (ailp->xa_target == target) {
+ clear_bit(XFS_AIL_PUSHING_BIT, &ailp->xa_flags);
+ return;
+ }
+ tout = 50;
} else if (XFS_LSN_CMP(lsn, target) >= 0) {
/*
* We reached the target so wait a bit longer for I/O to
* start the next scan from the start of the AIL.
*/
tout = 50;
- last_pushed_lsn = 0;
+ ailp->xa_last_pushed_lsn = 0;
} else if ((stuck * 100) / count > 90) {
/*
* Either there is a lot of contention on the AIL or we
* continuing from where we were.
*/
tout = 20;
- } else {
- /* more to do, but wait a short while before continuing */
- tout = 10;
}
- *last_lsn = last_pushed_lsn;
- return tout;
+
+ /* There is more to do, requeue us. */
+ queue_delayed_work(xfs_syncd_wq, &ailp->xa_work,
+ msecs_to_jiffies(tout));
+}
+
+/*
+ * This routine is called to move the tail of the AIL forward. It does this by
+ * trying to flush items in the AIL whose lsns are below the given
+ * threshold_lsn.
+ *
+ * The push is run asynchronously in a workqueue, which means the caller needs
+ * to handle waiting on the async flush for space to become available.
+ * We don't want to interrupt any push that is in progress, hence we only queue
+ * work if we set the pushing bit approriately.
+ *
+ * We do this unlocked - we only need to know whether there is anything in the
+ * AIL at the time we are called. We don't need to access the contents of
+ * any of the objects, so the lock is not needed.
+ */
+void
+xfs_ail_push(
+ struct xfs_ail *ailp,
+ xfs_lsn_t threshold_lsn)
+{
+ xfs_log_item_t *lip;
+
+ lip = xfs_ail_min(ailp);
+ if (!lip || XFS_FORCED_SHUTDOWN(ailp->xa_mount) ||
+ XFS_LSN_CMP(threshold_lsn, ailp->xa_target) <= 0)
+ return;
+
+ /*
+ * Ensure that the new target is noticed in push code before it clears
+ * the XFS_AIL_PUSHING_BIT.
+ */
+ smp_wmb();
+ ailp->xa_target = threshold_lsn;
+ if (!test_and_set_bit(XFS_AIL_PUSHING_BIT, &ailp->xa_flags))
+ queue_delayed_work(xfs_syncd_wq, &ailp->xa_work, 0);
}
+/*
+ * Push out all items in the AIL immediately
+ */
+void
+xfs_ail_push_all(
+ struct xfs_ail *ailp)
+{
+ xfs_lsn_t threshold_lsn = xfs_ail_max_lsn(ailp);
+
+ if (threshold_lsn)
+ xfs_ail_push(ailp, threshold_lsn);
+}
/*
* This is to be called when an item is unlocked that may have
xfs_mount_t *mp)
{
struct xfs_ail *ailp;
- int error;
ailp = kmem_zalloc(sizeof(struct xfs_ail), KM_MAYFAIL);
if (!ailp)
ailp->xa_mount = mp;
INIT_LIST_HEAD(&ailp->xa_ail);
spin_lock_init(&ailp->xa_lock);
- error = xfsaild_start(ailp);
- if (error)
- goto out_free_ailp;
+ INIT_DELAYED_WORK(&ailp->xa_work, xfs_ail_worker);
mp->m_ail = ailp;
return 0;
-
-out_free_ailp:
- kmem_free(ailp);
- return error;
}
void
{
struct xfs_ail *ailp = mp->m_ail;
- xfsaild_stop(ailp);
+ cancel_delayed_work_sync(&ailp->xa_work);
kmem_free(ailp);
}
-
-/*
- * splice the log item list into the AIL at the given LSN.
- */
-STATIC void
-xfs_ail_splice(
- struct xfs_ail *ailp,
- struct list_head *list,
- xfs_lsn_t lsn)
-{
- xfs_log_item_t *next_lip;
-
- /*
- * If the list is empty, just insert the item.
- */
- if (list_empty(&ailp->xa_ail)) {
- list_splice(list, &ailp->xa_ail);
- return;
- }
-
- list_for_each_entry_reverse(next_lip, &ailp->xa_ail, li_ail) {
- if (XFS_LSN_CMP(next_lip->li_lsn, lsn) <= 0)
- break;
- }
-
- ASSERT((&next_lip->li_ail == &ailp->xa_ail) ||
- (XFS_LSN_CMP(next_lip->li_lsn, lsn) <= 0));
-
- list_splice_init(list, &next_lip->li_ail);
- return;
-}
-
-/*
- * Delete the given item from the AIL. Return a pointer to the item.
- */
-STATIC void
-xfs_ail_delete(
- struct xfs_ail *ailp,
- xfs_log_item_t *lip)
-{
- xfs_ail_check(ailp, lip);
- list_del(&lip->li_ail);
- xfs_trans_ail_cursor_clear(ailp, lip);
-}
-
-/*
- * Return a pointer to the first item in the AIL.
- * If the AIL is empty, then return NULL.
- */
-STATIC xfs_log_item_t *
-xfs_ail_min(
- struct xfs_ail *ailp)
-{
- if (list_empty(&ailp->xa_ail))
- return NULL;
-
- return list_first_entry(&ailp->xa_ail, xfs_log_item_t, li_ail);
-}
-
-/*
- * Return a pointer to the item which follows
- * the given item in the AIL. If the given item
- * is the last item in the list, then return NULL.
- */
-STATIC xfs_log_item_t *
-xfs_ail_next(
- struct xfs_ail *ailp,
- xfs_log_item_t *lip)
-{
- if (lip->li_ail.next == &ailp->xa_ail)
- return NULL;
-
- return list_first_entry(&lip->li_ail, xfs_log_item_t, li_ail);
-}
-
-#ifdef DEBUG
-/*
- * Check that the list is sorted as it should be.
- */
-STATIC void
-xfs_ail_check(
- struct xfs_ail *ailp,
- xfs_log_item_t *lip)
-{
- xfs_log_item_t *prev_lip;
-
- if (list_empty(&ailp->xa_ail))
- return;
-
- /*
- * Check the next and previous entries are valid.
- */
- ASSERT((lip->li_flags & XFS_LI_IN_AIL) != 0);
- prev_lip = list_entry(lip->li_ail.prev, xfs_log_item_t, li_ail);
- if (&prev_lip->li_ail != &ailp->xa_ail)
- ASSERT(XFS_LSN_CMP(prev_lip->li_lsn, lip->li_lsn) <= 0);
-
- prev_lip = list_entry(lip->li_ail.next, xfs_log_item_t, li_ail);
- if (&prev_lip->li_ail != &ailp->xa_ail)
- ASSERT(XFS_LSN_CMP(prev_lip->li_lsn, lip->li_lsn) >= 0);
-
-
-#ifdef XFS_TRANS_DEBUG
- /*
- * Walk the list checking lsn ordering, and that every entry has the
- * XFS_LI_IN_AIL flag set. This is really expensive, so only do it
- * when specifically debugging the transaction subsystem.
- */
- prev_lip = list_entry(&ailp->xa_ail, xfs_log_item_t, li_ail);
- list_for_each_entry(lip, &ailp->xa_ail, li_ail) {
- if (&prev_lip->li_ail != &ailp->xa_ail)
- ASSERT(XFS_LSN_CMP(prev_lip->li_lsn, lip->li_lsn) <= 0);
- ASSERT((lip->li_flags & XFS_LI_IN_AIL) != 0);
- prev_lip = lip;
- }
-#endif /* XFS_TRANS_DEBUG */
-}
-#endif /* DEBUG */
struct xfs_ail {
struct xfs_mount *xa_mount;
struct list_head xa_ail;
- uint xa_gen;
- struct task_struct *xa_task;
xfs_lsn_t xa_target;
struct xfs_ail_cursor xa_cursors;
spinlock_t xa_lock;
+ struct delayed_work xa_work;
+ xfs_lsn_t xa_last_pushed_lsn;
+ unsigned long xa_flags;
};
+#define XFS_AIL_PUSHING_BIT 0
+
/*
* From xfs_trans_ail.c
*/
+
+extern struct workqueue_struct *xfs_ail_wq; /* AIL workqueue */
+
void xfs_trans_ail_update_bulk(struct xfs_ail *ailp,
struct xfs_log_item **log_items, int nr_items,
xfs_lsn_t lsn) __releases(ailp->xa_lock);
xfs_trans_ail_delete_bulk(ailp, &lip, 1);
}
-void xfs_trans_ail_push(struct xfs_ail *, xfs_lsn_t);
+void xfs_ail_push(struct xfs_ail *, xfs_lsn_t);
+void xfs_ail_push_all(struct xfs_ail *);
+xfs_lsn_t xfs_ail_min_lsn(struct xfs_ail *ailp);
+
void xfs_trans_unlocked_item(struct xfs_ail *,
xfs_log_item_t *);
-xfs_lsn_t xfs_trans_ail_tail(struct xfs_ail *ailp);
-
struct xfs_log_item *xfs_trans_ail_cursor_first(struct xfs_ail *ailp,
struct xfs_ail_cursor *cur,
xfs_lsn_t lsn);
void xfs_trans_ail_cursor_done(struct xfs_ail *ailp,
struct xfs_ail_cursor *cur);
-long xfsaild_push(struct xfs_ail *, xfs_lsn_t *);
-void xfsaild_wakeup(struct xfs_ail *, xfs_lsn_t);
-int xfsaild_start(struct xfs_ail *);
-void xfsaild_stop(struct xfs_ail *);
-
#if BITS_PER_LONG != 64
static inline void
xfs_trans_ail_copy_lsn(
#define QUEUE_FLAG_SYNCFULL 3 /* read queue has been filled */
#define QUEUE_FLAG_ASYNCFULL 4 /* write queue has been filled */
#define QUEUE_FLAG_DEAD 5 /* queue being torn down */
-#define QUEUE_FLAG_REENTER 6 /* Re-entrancy avoidance */
-#define QUEUE_FLAG_ELVSWITCH 7 /* don't use elevator, just do FIFO */
-#define QUEUE_FLAG_BIDI 8 /* queue supports bidi requests */
-#define QUEUE_FLAG_NOMERGES 9 /* disable merge attempts */
-#define QUEUE_FLAG_SAME_COMP 10 /* force complete on same CPU */
-#define QUEUE_FLAG_FAIL_IO 11 /* fake timeout */
-#define QUEUE_FLAG_STACKABLE 12 /* supports request stacking */
-#define QUEUE_FLAG_NONROT 13 /* non-rotational device (SSD) */
+#define QUEUE_FLAG_ELVSWITCH 6 /* don't use elevator, just do FIFO */
+#define QUEUE_FLAG_BIDI 7 /* queue supports bidi requests */
+#define QUEUE_FLAG_NOMERGES 8 /* disable merge attempts */
+#define QUEUE_FLAG_SAME_COMP 9 /* force complete on same CPU */
+#define QUEUE_FLAG_FAIL_IO 10 /* fake timeout */
+#define QUEUE_FLAG_STACKABLE 11 /* supports request stacking */
+#define QUEUE_FLAG_NONROT 12 /* non-rotational device (SSD) */
#define QUEUE_FLAG_VIRT QUEUE_FLAG_NONROT /* paravirt device */
-#define QUEUE_FLAG_IO_STAT 15 /* do IO stats */
-#define QUEUE_FLAG_DISCARD 16 /* supports DISCARD */
-#define QUEUE_FLAG_NOXMERGES 17 /* No extended merges */
-#define QUEUE_FLAG_ADD_RANDOM 18 /* Contributes to random pool */
-#define QUEUE_FLAG_SECDISCARD 19 /* supports SECDISCARD */
+#define QUEUE_FLAG_IO_STAT 13 /* do IO stats */
+#define QUEUE_FLAG_DISCARD 14 /* supports DISCARD */
+#define QUEUE_FLAG_NOXMERGES 15 /* No extended merges */
+#define QUEUE_FLAG_ADD_RANDOM 16 /* Contributes to random pool */
+#define QUEUE_FLAG_SECDISCARD 17 /* supports SECDISCARD */
#define QUEUE_FLAG_DEFAULT ((1 << QUEUE_FLAG_IO_STAT) | \
(1 << QUEUE_FLAG_STACKABLE) | \
extern void blk_stop_queue(struct request_queue *q);
extern void blk_sync_queue(struct request_queue *q);
extern void __blk_stop_queue(struct request_queue *q);
-extern void __blk_run_queue(struct request_queue *q, bool force_kblockd);
+extern void __blk_run_queue(struct request_queue *q);
extern void blk_run_queue(struct request_queue *);
+extern void blk_run_queue_async(struct request_queue *q);
extern int blk_rq_map_user(struct request_queue *, struct request *,
struct rq_map_data *, void __user *, unsigned long,
gfp_t);
struct blk_plug {
unsigned long magic;
struct list_head list;
+ struct list_head cb_list;
unsigned int should_sort;
};
+struct blk_plug_cb {
+ struct list_head list;
+ void (*callback)(struct blk_plug_cb *);
+};
extern void blk_start_plug(struct blk_plug *);
extern void blk_finish_plug(struct blk_plug *);
-extern void __blk_flush_plug(struct task_struct *, struct blk_plug *);
+extern void blk_flush_plug_list(struct blk_plug *, bool);
static inline void blk_flush_plug(struct task_struct *tsk)
{
struct blk_plug *plug = tsk->plug;
- if (unlikely(plug))
- __blk_flush_plug(tsk, plug);
+ if (plug)
+ blk_flush_plug_list(plug, false);
+}
+
+static inline void blk_schedule_flush_plug(struct task_struct *tsk)
+{
+ struct blk_plug *plug = tsk->plug;
+
+ if (plug)
+ blk_flush_plug_list(plug, true);
}
static inline bool blk_needs_flush_plug(struct task_struct *tsk)
{
struct blk_plug *plug = tsk->plug;
- return plug && !list_empty(&plug->list);
+ return plug && (!list_empty(&plug->list) || !list_empty(&plug->cb_list));
}
/*
{
}
+static inline void blk_schedule_flush_plug(struct task_struct *task)
+{
+}
+
+
static inline bool blk_needs_flush_plug(struct task_struct *tsk)
{
return false;
/**
* struct mcp251x_platform_data - MCP251X SPI CAN controller platform data
* @oscillator_frequency: - oscillator frequency in Hz
+ * @irq_flags: - IRQF configuration flags
* @board_specific_setup: - called before probing the chip (power,reset)
* @transceiver_enable: - called to power on/off the transceiver
* @power_enable: - called to power on/off the mcp *and* the
struct mcp251x_platform_data {
unsigned long oscillator_frequency;
+ unsigned long irq_flags;
int (*board_specific_setup)(struct spi_device *spi);
int (*transceiver_enable)(int enable);
int (*power_enable) (int enable);
struct dm_target_callbacks {
struct list_head list;
int (*congested_fn) (struct dm_target_callbacks *, int);
- void (*unplug_fn)(struct dm_target_callbacks *);
};
int dm_register_target(struct target_type *t);
#define SYN_REPORT 0
#define SYN_CONFIG 1
#define SYN_MT_REPORT 2
+#define SYN_DROPPED 3
/*
* Keys and buttons
#define KEY_DVD 0x185 /* Media Select DVD */
#define KEY_AUX 0x186
#define KEY_MP3 0x187
-#define KEY_AUDIO 0x188
-#define KEY_VIDEO 0x189
+#define KEY_AUDIO 0x188 /* AL Audio Browser */
+#define KEY_VIDEO 0x189 /* AL Movie Browser */
#define KEY_DIRECTORY 0x18a
#define KEY_LIST 0x18b
#define KEY_MEMO 0x18c /* Media Select Messages */
#define KEY_FRAMEFORWARD 0x1b5
#define KEY_CONTEXT_MENU 0x1b6 /* GenDesc - system context menu */
#define KEY_MEDIA_REPEAT 0x1b7 /* Consumer - transport control */
-#define KEY_10CHANNELSUP 0x1b8 /* 10 channels up (10+) */
-#define KEY_10CHANNELSDOWN 0x1b9 /* 10 channels down (10-) */
+#define KEY_10CHANNELSUP 0x1b8 /* 10 channels up (10+) */
+#define KEY_10CHANNELSDOWN 0x1b9 /* 10 channels down (10-) */
+#define KEY_IMAGES 0x1ba /* AL Image Browser */
#define KEY_DEL_EOL 0x1c0
#define KEY_DEL_EOS 0x1c1
input_event(dev, EV_ABS, ABS_MT_SLOT, slot);
}
+static inline bool input_is_mt_axis(int axis)
+{
+ return axis == ABS_MT_SLOT ||
+ (axis >= ABS_MT_FIRST && axis <= ABS_MT_LAST);
+}
+
void input_mt_report_slot_state(struct input_dev *dev,
unsigned int tool_type, bool active);
return ;
}
-static inline inline void mem_cgroup_rotate_reclaimable_page(struct page *page)
+static inline void mem_cgroup_rotate_reclaimable_page(struct page *page)
{
return ;
}
*/
static inline const struct mfd_cell *mfd_get_cell(struct platform_device *pdev)
{
- return pdev->dev.platform_data;
+ return pdev->mfd_cell;
}
/*
* Given a platform device that's been created by mfd_add_devices(), fetch
* the .mfd_data entry from the mfd_cell that created it.
+ * Otherwise just return the platform_data pointer.
+ * This maintains compatibility with platform drivers whose devices aren't
+ * created by the mfd layer, and expect platform_data to contain what would've
+ * otherwise been in mfd_data.
*/
static inline void *mfd_get_data(struct platform_device *pdev)
{
- return mfd_get_cell(pdev)->mfd_data;
+ const struct mfd_cell *cell = mfd_get_cell(pdev);
+
+ if (cell)
+ return cell->mfd_data;
+ else
+ return pdev->dev.platform_data;
}
extern int mfd_add_devices(struct device *parent, int id,
unsigned int dataoff,
unsigned int len,
u_int8_t protocol);
- int (*route)(struct dst_entry **dst, struct flowi *fl);
+ int (*route)(struct net *net, struct dst_entry **dst,
+ struct flowi *fl, bool strict);
void (*saveroute)(const struct sk_buff *skb,
struct nf_queue_entry *entry);
int (*reroute)(struct sk_buff *skb,
/* Lock protecting the set data */
rwlock_t lock;
/* References to the set */
- atomic_t ref;
+ u32 ref;
/* The core set type */
struct ip_set_type *type;
/* The type variant doing the real job */
if (h->netmask != HOST_MASK)
NLA_PUT_U8(skb, IPSET_ATTR_NETMASK, h->netmask);
#endif
- NLA_PUT_NET32(skb, IPSET_ATTR_REFERENCES,
- htonl(atomic_read(&set->ref) - 1));
+ NLA_PUT_NET32(skb, IPSET_ATTR_REFERENCES, htonl(set->ref - 1));
NLA_PUT_NET32(skb, IPSET_ATTR_MEMSIZE, htonl(memsize));
if (with_timeout(h->timeout))
NLA_PUT_NET32(skb, IPSET_ATTR_TIMEOUT, htonl(h->timeout));
*/
extern struct pid *find_get_pid(int nr);
extern struct pid *find_ge_pid(int nr, struct pid_namespace *);
-int next_pidmap(struct pid_namespace *pid_ns, int last);
+int next_pidmap(struct pid_namespace *pid_ns, unsigned int last);
extern struct pid *alloc_pid(struct pid_namespace *ns);
extern void free_pid(struct pid *pid);
#include <linux/device.h>
#include <linux/mod_devicetable.h>
+struct mfd_cell;
+
struct platform_device {
const char * name;
int id;
const struct platform_device_id *id_entry;
+ /* MFD cell pointer */
+ struct mfd_cell *mfd_cell;
+
/* arch specific additions */
struct pdev_archdata archdata;
};
#include <linux/fs.h>
#include <linux/poll.h>
#include <linux/posix-timers.h>
+#include <linux/rwsem.h>
struct posix_clock;
* @ops: Functional interface to the clock
* @cdev: Character device instance for this clock
* @kref: Reference count.
- * @mutex: Protects the 'zombie' field from concurrent access.
+ * @rwsem: Protects the 'zombie' field from concurrent access.
* @zombie: If 'zombie' is true, then the hardware has disappeared.
* @release: A function to free the structure when the reference count reaches
* zero. May be NULL if structure is statically allocated.
struct posix_clock_operations ops;
struct cdev cdev;
struct kref kref;
- struct mutex mutex;
+ struct rw_semaphore rwsem;
bool zombie;
void (*release)(struct posix_clock *clk);
};
};
/* Architecture and hardware-specific functions */
-extern void rio_register_mport(struct rio_mport *);
+extern int rio_register_mport(struct rio_mport *);
extern int rio_open_inb_mbox(struct rio_mport *, void *, int, int);
extern void rio_close_inb_mbox(struct rio_mport *, int);
extern int rio_open_outb_mbox(struct rio_mport *, void *, int, int);
#define RIO_DID_IDTCPS6Q 0x035f
#define RIO_DID_IDTCPS10Q 0x035e
#define RIO_DID_IDTCPS1848 0x0374
+#define RIO_DID_IDTCPS1432 0x0375
#define RIO_DID_IDTCPS1616 0x0379
#define RIO_DID_IDTVPS1616 0x0377
#define RIO_DID_IDTSPS1616 0x0378
struct rtc_wkalrm *alrm);
extern int rtc_set_alarm(struct rtc_device *rtc,
struct rtc_wkalrm *alrm);
+extern int rtc_initialize_alarm(struct rtc_device *rtc,
+ struct rtc_wkalrm *alrm);
extern void rtc_update_irq(struct rtc_device *rtc,
unsigned long num, unsigned long events);
#endif
struct mm_struct *mm, *active_mm;
+#ifdef CONFIG_COMPAT_BRK
+ unsigned brk_randomized:1;
+#endif
#if defined(SPLIT_RSS_COUNTING)
struct task_rss_stat rss_stat;
#endif
extern int hibernate(void);
extern bool system_entering_hibernation(void);
#else /* CONFIG_HIBERNATION */
+static inline void register_nosave_region(unsigned long b, unsigned long e) {}
+static inline void register_nosave_region_late(unsigned long b, unsigned long e) {}
static inline int swsusp_page_is_forbidden(struct page *p) { return 0; }
static inline void swsusp_set_page_free(struct page *p) {}
static inline void swsusp_unset_page_free(struct page *p) {}
extern struct mutex pm_mutex;
-#ifndef CONFIG_HIBERNATION
-static inline void register_nosave_region(unsigned long b, unsigned long e)
-{
-}
-static inline void register_nosave_region_late(unsigned long b, unsigned long e)
-{
-}
-
+#ifndef CONFIG_HIBERNATE_CALLBACKS
static inline void lock_system_sleep(void) {}
static inline void unlock_system_sleep(void) {}
* Indicates to usbnet, that USB driver accumulates multiple IP packets.
* Affects statistic (counters) and short packet handling.
*/
-#define FLAG_MULTI_PACKET 0x1000
-#define FLAG_RX_ASSEMBLE 0x2000 /* rx packets may span >1 frames */
+#define FLAG_MULTI_PACKET 0x2000
+#define FLAG_RX_ASSEMBLE 0x4000 /* rx packets may span >1 frames */
/* init device ... can sleep, or cause probe() failure */
int (*bind)(struct usbnet *, struct usb_interface *);
UNEVICTABLE_PGCLEARED, /* on COW, page truncate */
UNEVICTABLE_PGSTRANDED, /* unable to isolate on unlock */
UNEVICTABLE_MLOCKFREED,
+#ifdef CONFIG_TRANSPARENT_HUGEPAGE
+ THP_FAULT_ALLOC,
+ THP_FAULT_FALLBACK,
+ THP_COLLAPSE_ALLOC,
+ THP_COLLAPSE_ALLOC_FAILED,
+ THP_SPLIT,
+#endif
NR_VM_EVENT_ITEMS
};
*/
enum p9_msg_t {
- P9_TSYNCFS = 0,
- P9_RSYNCFS,
P9_TLERROR = 6,
P9_RLERROR,
P9_TSTATFS = 8,
void p9_client_begin_disconnect(struct p9_client *clnt);
struct p9_fid *p9_client_attach(struct p9_client *clnt, struct p9_fid *afid,
char *uname, u32 n_uname, char *aname);
-struct p9_fid *p9_client_walk(struct p9_fid *oldfid, int nwname, char **wnames,
- int clone);
+struct p9_fid *p9_client_walk(struct p9_fid *oldfid, uint16_t nwname,
+ char **wnames, int clone);
int p9_client_open(struct p9_fid *fid, int mode);
int p9_client_fcreate(struct p9_fid *fid, char *name, u32 perm, int mode,
char *extension);
gid_t gid, struct p9_qid *qid);
int p9_client_clunk(struct p9_fid *fid);
int p9_client_fsync(struct p9_fid *fid, int datasync);
-int p9_client_sync_fs(struct p9_fid *fid);
int p9_client_remove(struct p9_fid *fid);
int p9_client_read(struct p9_fid *fid, char *data, char __user *udata,
u64 offset, u32 count);
*/
if (likely(skb->dev && skb->dev->nd_net))
return dev_net(skb->dev);
- if (skb_dst(skb)->dev)
+ if (skb_dst(skb) && skb_dst(skb)->dev)
return dev_net(skb_dst(skb)->dev);
WARN(skb->sk, "Maybe skb_sknet should be used in %s() at line:%d\n",
__func__, __LINE__);
* that TX/RX_STOP can pass NULL for this parameter.
* The @buf_size parameter is only valid when the action is set to
* %IEEE80211_AMPDU_TX_OPERATIONAL and indicates the peer's reorder
- * buffer size (number of subframes) for this session -- aggregates
- * containing more subframes than this may not be transmitted to the peer.
+ * buffer size (number of subframes) for this session -- the driver
+ * may neither send aggregates containing more subframes than this
+ * nor send aggregates in a way that lost frames would exceed the
+ * buffer size. If just limiting the aggregate size, this would be
+ * possible with a buf_size of 8:
+ * - TX: 1.....7
+ * - RX: 2....7 (lost frame #1)
+ * - TX: 8..1...
+ * which is invalid since #1 was now re-transmitted well past the
+ * buffer size of 8. Correct ways to retransmit #1 would be:
+ * - TX: 1 or 18 or 81
+ * Even "189" would be wrong since 1 could be lost again.
+ *
* Returns a negative error code on failure.
* The callback can sleep.
*
__be32 rt_dst; /* Path destination */
__be32 rt_src; /* Path source */
+ int rt_route_iif;
int rt_iif;
int rt_oif;
__u32 rt_mark;
static inline bool rt_is_input_route(struct rtable *rt)
{
- return rt->rt_iif != 0;
+ return rt->rt_route_iif != 0;
}
static inline bool rt_is_output_route(struct rtable *rt)
{
- return rt->rt_iif == 0;
+ return rt->rt_route_iif == 0;
}
struct ip_rt_acct {
DECLARE_EVENT_CLASS(block_unplug,
- TP_PROTO(struct request_queue *q),
+ TP_PROTO(struct request_queue *q, unsigned int depth, bool explicit),
- TP_ARGS(q),
+ TP_ARGS(q, depth, explicit),
TP_STRUCT__entry(
__field( int, nr_rq )
),
TP_fast_assign(
- __entry->nr_rq = q->rq.count[READ] + q->rq.count[WRITE];
+ __entry->nr_rq = depth;
memcpy(__entry->comm, current->comm, TASK_COMM_LEN);
),
);
/**
- * block_unplug_timer - timed release of operations requests in queue to device driver
- * @q: request queue to unplug
- *
- * Unplug the request queue @q because a timer expired and allow block
- * operation requests to be sent to the device driver.
- */
-DEFINE_EVENT(block_unplug, block_unplug_timer,
-
- TP_PROTO(struct request_queue *q),
-
- TP_ARGS(q)
-);
-
-/**
- * block_unplug_io - release of operations requests in request queue
+ * block_unplug - release of operations requests in request queue
* @q: request queue to unplug
+ * @depth: number of requests just added to the queue
+ * @explicit: whether this was an explicit unplug, or one from schedule()
*
* Unplug request queue @q because device driver is scheduled to work
* on elements in the request queue.
*/
-DEFINE_EVENT(block_unplug, block_unplug_io,
+DEFINE_EVENT(block_unplug, block_unplug,
- TP_PROTO(struct request_queue *q),
+ TP_PROTO(struct request_queue *q, unsigned int depth, bool explicit),
- TP_ARGS(q)
+ TP_ARGS(q, depth, explicit)
);
/**
restart->futex.val = val;
restart->futex.time = abs_time->tv64;
restart->futex.bitset = bitset;
- restart->futex.flags = flags;
+ restart->futex.flags = flags | FLAGS_HAS_TIMEOUT;
ret = -ERESTART_RESTARTBLOCK;
}
if (mode & PERF_CGROUP_SWIN) {
+ WARN_ON_ONCE(cpuctx->cgrp);
/* set cgrp before ctxsw in to
* allow event_filter_match() to not
* have to pass task around
if (!ctx || !ctx->nr_events)
goto out;
+ /*
+ * We must ctxsw out cgroup events to avoid conflict
+ * when invoking perf_task_event_sched_in() later on
+ * in this function. Otherwise we end up trying to
+ * ctxswin cgroup events which are already scheduled
+ * in.
+ */
+ perf_cgroup_sched_out(current);
task_ctx_sched_out(ctx, EVENT_ALL);
raw_spin_lock(&ctx->lock);
raw_spin_unlock(&ctx->lock);
+ /*
+ * Also calls ctxswin for cgroup events, if any:
+ */
perf_event_context_sched_in(ctx, ctx->task);
out:
local_irq_restore(flags);
return -1;
}
-int next_pidmap(struct pid_namespace *pid_ns, int last)
+int next_pidmap(struct pid_namespace *pid_ns, unsigned int last)
{
int offset;
struct pidmap *map, *end;
+ if (last >= PID_MAX_LIMIT)
+ return -1;
+
offset = (last + 1) & BITS_PER_PAGE_MASK;
map = &pid_ns->pidmap[(last + 1)/BITS_PER_PAGE];
end = &pid_ns->pidmap[PIDMAP_ENTRIES];
Turning OFF this setting is NOT recommended! If in doubt, say Y.
+config HIBERNATE_CALLBACKS
+ bool
+
config HIBERNATION
bool "Hibernation (aka 'suspend to disk')"
depends on SWAP && ARCH_HIBERNATION_POSSIBLE
+ select HIBERNATE_CALLBACKS
select LZO_COMPRESS
select LZO_DECOMPRESS
---help---
config PM_SLEEP
def_bool y
- depends on SUSPEND || HIBERNATION || XEN_SAVE_RESTORE
+ depends on SUSPEND || HIBERNATE_CALLBACKS
config PM_SLEEP_SMP
def_bool y
try_to_wake_up_local(to_wakeup);
}
deactivate_task(rq, prev, DEQUEUE_SLEEP);
+
+ /*
+ * If we are going to sleep and we have plugged IO queued, make
+ * sure to submit it to avoid deadlocks.
+ */
+ if (blk_needs_flush_plug(prev)) {
+ raw_spin_unlock(&rq->lock);
+ blk_schedule_flush_plug(prev);
+ raw_spin_lock(&rq->lock);
+ }
}
switch_count = &prev->nvcsw;
}
- /*
- * If we are going to sleep and we have plugged IO queued, make
- * sure to submit it to avoid deadlocks.
- */
- if (prev->state != TASK_RUNNING && blk_needs_flush_plug(prev)) {
- raw_spin_unlock(&rq->lock);
- blk_flush_plug(prev);
- raw_spin_lock(&rq->lock);
- }
-
pre_schedule(rq, prev);
if (unlikely(!rq->nr_running))
enum cpu_idle_type idle, int *all_pinned,
int *this_best_prio, struct cfs_rq *busiest_cfs_rq)
{
- int loops = 0, pulled = 0, pinned = 0;
+ int loops = 0, pulled = 0;
long rem_load_move = max_load_move;
struct task_struct *p, *n;
if (max_load_move == 0)
goto out;
- pinned = 1;
-
list_for_each_entry_safe(p, n, &busiest_cfs_rq->tasks, se.group_node) {
if (loops++ > sysctl_sched_nr_migrate)
break;
if ((p->se.load.weight >> 1) > rem_load_move ||
- !can_migrate_task(p, busiest, this_cpu, sd, idle, &pinned))
+ !can_migrate_task(p, busiest, this_cpu, sd, idle,
+ all_pinned))
continue;
pull_task(busiest, p, this_rq, this_cpu);
*/
schedstat_add(sd, lb_gained[idle], pulled);
- if (all_pinned)
- *all_pinned = pinned;
-
return max_load_move - rem_load_move;
}
if (!sds.busiest || sds.busiest_nr_running == 0)
goto out_balanced;
+ sds.avg_load = (SCHED_LOAD_SCALE * sds.total_load) / sds.total_pwr;
+
/*
* If the busiest group is imbalanced the below checks don't
* work because they assumes all things are equal, which typically
* Don't pull any tasks if this group is already above the domain
* average load.
*/
- sds.avg_load = (SCHED_LOAD_SCALE * sds.total_load) / sds.total_pwr;
if (sds.this_load >= sds.avg_load)
goto out_balanced;
* still unbalanced. ld_moved simply stays zero, so it is
* correctly treated as an imbalance.
*/
+ all_pinned = 1;
local_irq_save(flags);
double_rq_lock(this_rq, busiest);
ld_moved = move_tasks(this_rq, this_cpu, busiest,
*/
#include <linux/device.h>
#include <linux/file.h>
-#include <linux/mutex.h>
#include <linux/posix-clock.h>
#include <linux/slab.h>
#include <linux/syscalls.h>
{
struct posix_clock *clk = fp->private_data;
- mutex_lock(&clk->mutex);
+ down_read(&clk->rwsem);
if (!clk->zombie)
return clk;
- mutex_unlock(&clk->mutex);
+ up_read(&clk->rwsem);
return NULL;
}
static void put_posix_clock(struct posix_clock *clk)
{
- mutex_unlock(&clk->mutex);
+ up_read(&clk->rwsem);
}
static ssize_t posix_clock_read(struct file *fp, char __user *buf,
struct posix_clock *clk =
container_of(inode->i_cdev, struct posix_clock, cdev);
- mutex_lock(&clk->mutex);
+ down_read(&clk->rwsem);
if (clk->zombie) {
err = -ENODEV;
fp->private_data = clk;
}
out:
- mutex_unlock(&clk->mutex);
+ up_read(&clk->rwsem);
return err;
}
int err;
kref_init(&clk->kref);
- mutex_init(&clk->mutex);
+ init_rwsem(&clk->rwsem);
cdev_init(&clk->cdev, &posix_clock_file_operations);
clk->cdev.owner = clk->ops.owner;
err = cdev_add(&clk->cdev, devid, 1);
- if (err)
- goto no_cdev;
return err;
-no_cdev:
- mutex_destroy(&clk->mutex);
- return err;
}
EXPORT_SYMBOL_GPL(posix_clock_register);
static void delete_clock(struct kref *kref)
{
struct posix_clock *clk = container_of(kref, struct posix_clock, kref);
- mutex_destroy(&clk->mutex);
+
if (clk->release)
clk->release(clk);
}
{
cdev_del(&clk->cdev);
- mutex_lock(&clk->mutex);
+ down_write(&clk->rwsem);
clk->zombie = true;
- mutex_unlock(&clk->mutex);
+ up_write(&clk->rwsem);
kref_put(&clk->kref, delete_clock);
}
__blk_add_trace(bt, 0, 0, 0, BLK_TA_PLUG, 0, 0, NULL);
}
-static void blk_add_trace_unplug_io(void *ignore, struct request_queue *q)
+static void blk_add_trace_unplug(void *ignore, struct request_queue *q,
+ unsigned int depth, bool explicit)
{
struct blk_trace *bt = q->blk_trace;
if (bt) {
- unsigned int pdu = q->rq.count[READ] + q->rq.count[WRITE];
- __be64 rpdu = cpu_to_be64(pdu);
+ __be64 rpdu = cpu_to_be64(depth);
+ u32 what;
- __blk_add_trace(bt, 0, 0, 0, BLK_TA_UNPLUG_IO, 0,
- sizeof(rpdu), &rpdu);
- }
-}
-
-static void blk_add_trace_unplug_timer(void *ignore, struct request_queue *q)
-{
- struct blk_trace *bt = q->blk_trace;
-
- if (bt) {
- unsigned int pdu = q->rq.count[READ] + q->rq.count[WRITE];
- __be64 rpdu = cpu_to_be64(pdu);
+ if (explicit)
+ what = BLK_TA_UNPLUG_IO;
+ else
+ what = BLK_TA_UNPLUG_TIMER;
- __blk_add_trace(bt, 0, 0, 0, BLK_TA_UNPLUG_TIMER, 0,
- sizeof(rpdu), &rpdu);
+ __blk_add_trace(bt, 0, 0, 0, what, 0, sizeof(rpdu), &rpdu);
}
}
WARN_ON(ret);
ret = register_trace_block_plug(blk_add_trace_plug, NULL);
WARN_ON(ret);
- ret = register_trace_block_unplug_timer(blk_add_trace_unplug_timer, NULL);
- WARN_ON(ret);
- ret = register_trace_block_unplug_io(blk_add_trace_unplug_io, NULL);
+ ret = register_trace_block_unplug(blk_add_trace_unplug, NULL);
WARN_ON(ret);
ret = register_trace_block_split(blk_add_trace_split, NULL);
WARN_ON(ret);
unregister_trace_block_rq_remap(blk_add_trace_rq_remap, NULL);
unregister_trace_block_bio_remap(blk_add_trace_bio_remap, NULL);
unregister_trace_block_split(blk_add_trace_split, NULL);
- unregister_trace_block_unplug_io(blk_add_trace_unplug_io, NULL);
- unregister_trace_block_unplug_timer(blk_add_trace_unplug_timer, NULL);
+ unregister_trace_block_unplug(blk_add_trace_unplug, NULL);
unregister_trace_block_plug(blk_add_trace_plug, NULL);
unregister_trace_block_sleeprq(blk_add_trace_sleeprq, NULL);
unregister_trace_block_getrq(blk_add_trace_getrq, NULL);
val = *s - '0';
else if ('a' <= _tolower(*s) && _tolower(*s) <= 'f')
val = _tolower(*s) - 'a' + 10;
- else if (*s == '\n') {
- if (*(s + 1) == '\0')
- break;
- else
- return -EINVAL;
- } else
+ else if (*s == '\n' && *(s + 1) == '\0')
+ break;
+ else
return -EINVAL;
if (val >= base)
{"65537", 10, 65537},
{"2147483646", 10, 2147483646},
{"2147483647", 10, 2147483647},
- {"2147483648", 10, 2147483648},
- {"2147483649", 10, 2147483649},
- {"4294967294", 10, 4294967294},
- {"4294967295", 10, 4294967295},
- {"4294967296", 10, 4294967296},
- {"4294967297", 10, 4294967297},
+ {"2147483648", 10, 2147483648ULL},
+ {"2147483649", 10, 2147483649ULL},
+ {"4294967294", 10, 4294967294ULL},
+ {"4294967295", 10, 4294967295ULL},
+ {"4294967296", 10, 4294967296ULL},
+ {"4294967297", 10, 4294967297ULL},
{"9223372036854775806", 10, 9223372036854775806ULL},
{"9223372036854775807", 10, 9223372036854775807ULL},
{"9223372036854775808", 10, 9223372036854775808ULL},
{"65537", 10, 65537},
{"2147483646", 10, 2147483646},
{"2147483647", 10, 2147483647},
- {"2147483648", 10, 2147483648},
- {"2147483649", 10, 2147483649},
- {"4294967294", 10, 4294967294},
- {"4294967295", 10, 4294967295},
- {"4294967296", 10, 4294967296},
- {"4294967297", 10, 4294967297},
+ {"2147483648", 10, 2147483648LL},
+ {"2147483649", 10, 2147483649LL},
+ {"4294967294", 10, 4294967294LL},
+ {"4294967295", 10, 4294967295LL},
+ {"4294967296", 10, 4294967296LL},
+ {"4294967297", 10, 4294967297LL},
{"9223372036854775806", 10, 9223372036854775806LL},
{"9223372036854775807", 10, 9223372036854775807LL},
};
{"65537", 10, 65537},
{"2147483646", 10, 2147483646},
{"2147483647", 10, 2147483647},
- {"2147483648", 10, 2147483648},
- {"2147483649", 10, 2147483649},
- {"4294967294", 10, 4294967294},
- {"4294967295", 10, 4294967295},
+ {"2147483648", 10, 2147483648U},
+ {"2147483649", 10, 2147483649U},
+ {"4294967294", 10, 4294967294U},
+ {"4294967295", 10, 4294967295U},
};
TEST_OK(kstrtou32, u32, "%u", test_u32_ok);
}
struct kobj_attribute *attr, char *buf,
enum transparent_hugepage_flag flag)
{
- if (test_bit(flag, &transparent_hugepage_flags))
- return sprintf(buf, "[yes] no\n");
- else
- return sprintf(buf, "yes [no]\n");
+ return sprintf(buf, "%d\n",
+ !!test_bit(flag, &transparent_hugepage_flags));
}
+
static ssize_t single_flag_store(struct kobject *kobj,
struct kobj_attribute *attr,
const char *buf, size_t count,
enum transparent_hugepage_flag flag)
{
- if (!memcmp("yes", buf,
- min(sizeof("yes")-1, count))) {
+ unsigned long value;
+ int ret;
+
+ ret = kstrtoul(buf, 10, &value);
+ if (ret < 0)
+ return ret;
+ if (value > 1)
+ return -EINVAL;
+
+ if (value)
set_bit(flag, &transparent_hugepage_flags);
- } else if (!memcmp("no", buf,
- min(sizeof("no")-1, count))) {
+ else
clear_bit(flag, &transparent_hugepage_flags);
- } else
- return -EINVAL;
return count;
}
return VM_FAULT_OOM;
page = alloc_hugepage_vma(transparent_hugepage_defrag(vma),
vma, haddr, numa_node_id(), 0);
- if (unlikely(!page))
+ if (unlikely(!page)) {
+ count_vm_event(THP_FAULT_FALLBACK);
goto out;
+ }
+ count_vm_event(THP_FAULT_ALLOC);
if (unlikely(mem_cgroup_newpage_charge(page, mm, GFP_KERNEL))) {
put_page(page);
goto out;
new_page = NULL;
if (unlikely(!new_page)) {
+ count_vm_event(THP_FAULT_FALLBACK);
ret = do_huge_pmd_wp_page_fallback(mm, vma, address,
pmd, orig_pmd, page, haddr);
put_page(page);
goto out;
}
+ count_vm_event(THP_FAULT_ALLOC);
if (unlikely(mem_cgroup_newpage_charge(new_page, mm, GFP_KERNEL))) {
put_page(new_page);
BUG_ON(!PageSwapBacked(page));
__split_huge_page(page, anon_vma);
+ count_vm_event(THP_SPLIT);
BUG_ON(PageCompound(page));
out_unlock:
node, __GFP_OTHER_NODE);
if (unlikely(!new_page)) {
up_read(&mm->mmap_sem);
+ count_vm_event(THP_COLLAPSE_ALLOC_FAILED);
*hpage = ERR_PTR(-ENOMEM);
return;
}
+ count_vm_event(THP_COLLAPSE_ALLOC);
if (unlikely(mem_cgroup_newpage_charge(new_page, mm, GFP_KERNEL))) {
up_read(&mm->mmap_sem);
put_page(new_page);
#ifndef CONFIG_NUMA
if (!*hpage) {
*hpage = alloc_hugepage(khugepaged_defrag());
- if (unlikely(!*hpage))
+ if (unlikely(!*hpage)) {
+ count_vm_event(THP_COLLAPSE_ALLOC_FAILED);
break;
+ }
+ count_vm_event(THP_COLLAPSE_ALLOC);
}
#else
if (IS_ERR(*hpage))
do {
hpage = alloc_hugepage(khugepaged_defrag());
- if (!hpage)
+ if (!hpage) {
+ count_vm_event(THP_COLLAPSE_ALLOC_FAILED);
khugepaged_alloc_sleep();
+ } else
+ count_vm_event(THP_COLLAPSE_ALLOC);
} while (unlikely(!hpage) &&
likely(khugepaged_enabled()));
return hpage;
while (likely(khugepaged_enabled())) {
#ifndef CONFIG_NUMA
hpage = khugepaged_alloc_hugepage();
- if (unlikely(!hpage))
+ if (unlikely(!hpage)) {
+ count_vm_event(THP_COLLAPSE_ALLOC_FAILED);
break;
+ }
+ count_vm_event(THP_COLLAPSE_ALLOC);
#else
if (IS_ERR(hpage)) {
khugepaged_alloc_sleep();
return page;
}
+static inline int stack_guard_page(struct vm_area_struct *vma, unsigned long addr)
+{
+ return (vma->vm_flags & VM_GROWSDOWN) &&
+ (vma->vm_start == addr) &&
+ !vma_stack_continue(vma->vm_prev, addr);
+}
+
/**
* __get_user_pages() - pin user pages in memory
* @tsk: task_struct of target task
vma = find_extend_vma(mm, start);
if (!vma && in_gate_area(mm, start)) {
unsigned long pg = start & PAGE_MASK;
- struct vm_area_struct *gate_vma = get_gate_vma(mm);
pgd_t *pgd;
pud_t *pud;
pmd_t *pmd;
pte_unmap(pte);
return i ? : -EFAULT;
}
+ vma = get_gate_vma(mm);
if (pages) {
struct page *page;
- page = vm_normal_page(gate_vma, start, *pte);
+ page = vm_normal_page(vma, start, *pte);
if (!page) {
if (!(gup_flags & FOLL_DUMP) &&
is_zero_pfn(pte_pfn(*pte)))
get_page(page);
}
pte_unmap(pte);
- if (vmas)
- vmas[i] = gate_vma;
- i++;
- start += PAGE_SIZE;
- nr_pages--;
- continue;
+ goto next_page;
}
if (!vma ||
continue;
}
+ /*
+ * If we don't actually want the page itself,
+ * and it's the stack guard page, just skip it.
+ */
+ if (!pages && stack_guard_page(vma, start))
+ goto next_page;
+
do {
struct page *page;
unsigned int foll_flags = gup_flags;
flush_anon_page(vma, page, start);
flush_dcache_page(page);
}
+next_page:
if (vmas)
vmas[i] = vma;
i++;
*/
#ifdef CONFIG_HAVE_IOREMAP_PROT
vma = find_vma(mm, addr);
- if (!vma)
+ if (!vma || vma->vm_start > addr)
break;
if (vma->vm_ops && vma->vm_ops->access)
ret = vma->vm_ops->access(vma, addr, buf,
#endif
#ifdef CONFIG_FLATMEM
- max_mapnr = max(page_to_pfn(page), max_mapnr);
+ max_mapnr = max(pfn, max_mapnr);
#endif
ClearPageReserved(page);
}
}
-static inline int stack_guard_page(struct vm_area_struct *vma, unsigned long addr)
-{
- return (vma->vm_flags & VM_GROWSDOWN) &&
- (vma->vm_start == addr) &&
- !vma_stack_continue(vma->vm_prev, addr);
-}
-
/**
* __mlock_vma_pages_range() - mlock a range of pages in the vma.
* @vma: target vma
if (vma->vm_flags & VM_LOCKED)
gup_flags |= FOLL_MLOCK;
- /* We don't try to access the guard page of a stack vma */
- if (stack_guard_page(vma, start)) {
- addr += PAGE_SIZE;
- nr_pages--;
- }
-
return __get_user_pages(current, mm, addr, nr_pages, gup_flags,
NULL, NULL, nonblocking);
}
* randomize_va_space to 2, which will still cause mm->start_brk
* to be arbitrarily shifted
*/
- if (mm->start_brk > PAGE_ALIGN(mm->end_data))
+ if (current->brk_randomized)
min_brk = mm->start_brk;
else
min_brk = mm->end_data;
size = vma->vm_end - address;
grow = (vma->vm_start - address) >> PAGE_SHIFT;
- error = acct_stack_growth(vma, size, grow);
- if (!error) {
- vma->vm_start = address;
- vma->vm_pgoff -= grow;
- perf_event_mmap(vma);
+ error = -ENOMEM;
+ if (grow <= vma->vm_pgoff) {
+ error = acct_stack_growth(vma, size, grow);
+ if (!error) {
+ vma->vm_start = address;
+ vma->vm_pgoff -= grow;
+ perf_event_mmap(vma);
+ }
}
}
vma_unlock_anon_vma(vma);
}
#endif /* CONFIG_NUMA */
-/*
- * If this is a system OOM (not a memcg OOM) and the task selected to be
- * killed is not already running at high (RT) priorities, speed up the
- * recovery by boosting the dying task to the lowest FIFO priority.
- * That helps with the recovery and avoids interfering with RT tasks.
- */
-static void boost_dying_task_prio(struct task_struct *p,
- struct mem_cgroup *mem)
-{
- struct sched_param param = { .sched_priority = 1 };
-
- if (mem)
- return;
-
- if (!rt_task(p))
- sched_setscheduler_nocheck(p, SCHED_FIFO, ¶m);
-}
-
/*
* The process p may have detached its own ->mm while exiting or through
* use_mm(), but one or more of its subthreads may still have a valid
set_tsk_thread_flag(p, TIF_MEMDIE);
force_sig(SIGKILL, p);
- /*
- * We give our sacrificial lamb high priority and access to
- * all the memory it needs. That way it should be able to
- * exit() and clear out its resources quickly...
- */
- boost_dying_task_prio(p, mem);
-
return 0;
}
#undef K
*/
if (p->flags & PF_EXITING) {
set_tsk_thread_flag(p, TIF_MEMDIE);
- boost_dying_task_prio(p, mem);
return 0;
}
*/
if (fatal_signal_pending(current)) {
set_thread_flag(TIF_MEMDIE);
- boost_dying_task_prio(current, NULL);
return;
}
*/
if (fatal_signal_pending(current)) {
set_thread_flag(TIF_MEMDIE);
- boost_dying_task_prio(current, NULL);
return;
}
* Called with zonelists_mutex held always
* unless system_state == SYSTEM_BOOTING.
*/
-void build_all_zonelists(void *data)
+void __ref build_all_zonelists(void *data)
{
set_zonelist_order();
* a waste to allocate index if we cannot allocate data.
*/
if (sbinfo->max_blocks) {
- if (percpu_counter_compare(&sbinfo->used_blocks, (sbinfo->max_blocks - 1)) > 0)
+ if (percpu_counter_compare(&sbinfo->used_blocks,
+ sbinfo->max_blocks - 1) >= 0)
return ERR_PTR(-ENOSPC);
percpu_counter_inc(&sbinfo->used_blocks);
spin_lock(&inode->i_lock);
shmem_swp_unmap(entry);
sbinfo = SHMEM_SB(inode->i_sb);
if (sbinfo->max_blocks) {
- if ((percpu_counter_compare(&sbinfo->used_blocks, sbinfo->max_blocks) > 0) ||
+ if (percpu_counter_compare(&sbinfo->used_blocks,
+ sbinfo->max_blocks) >= 0 ||
shmem_acct_block(info->flags)) {
spin_unlock(&info->lock);
error = -ENOSPC;
#include <linux/memcontrol.h>
#include <linux/delayacct.h>
#include <linux/sysctl.h>
+#include <linux/oom.h>
#include <asm/tlbflush.h>
#include <asm/div64.h>
return zone->pages_scanned < zone_reclaimable_pages(zone) * 6;
}
-/*
- * As hibernation is going on, kswapd is freezed so that it can't mark
- * the zone into all_unreclaimable. It can't handle OOM during hibernation.
- * So let's check zone's unreclaimable in direct reclaim as well as kswapd.
- */
+/* All zones in zonelist are unreclaimable? */
static bool all_unreclaimable(struct zonelist *zonelist,
struct scan_control *sc)
{
struct zoneref *z;
struct zone *zone;
- bool all_unreclaimable = true;
for_each_zone_zonelist_nodemask(zone, z, zonelist,
gfp_zone(sc->gfp_mask), sc->nodemask) {
continue;
if (!cpuset_zone_allowed_hardwall(zone, GFP_KERNEL))
continue;
- if (zone_reclaimable(zone)) {
- all_unreclaimable = false;
- break;
- }
+ if (!zone->all_unreclaimable)
+ return false;
}
- return all_unreclaimable;
+ return true;
}
/*
if (sc->nr_reclaimed)
return sc->nr_reclaimed;
+ /*
+ * As hibernation is going on, kswapd is freezed so that it can't mark
+ * the zone into all_unreclaimable. Thus bypassing all_unreclaimable
+ * check.
+ */
+ if (oom_killer_disabled)
+ return 0;
+
/* top priority shrink_zones still had more to do? don't OOM, then */
if (scanning_global_lru(sc) && !all_unreclaimable(zonelist, sc))
return 1;
/*
* The fetching of the stat_threshold is racy. We may apply
* a counter threshold to the wrong the cpu if we get
- * rescheduled while executing here. However, the following
- * will apply the threshold again and therefore bring the
- * counter under the threshold.
+ * rescheduled while executing here. However, the next
+ * counter update will apply the threshold again and
+ * therefore bring the counter under the threshold again.
+ *
+ * Most of the time the thresholds are the same anyways
+ * for all cpus in a zone.
*/
t = this_cpu_read(pcp->stat_threshold);
"unevictable_pgs_cleared",
"unevictable_pgs_stranded",
"unevictable_pgs_mlockfreed",
+
+#ifdef CONFIG_TRANSPARENT_HUGEPAGE
+ "thp_fault_alloc",
+ "thp_fault_fallback",
+ "thp_collapse_alloc",
+ "thp_collapse_alloc_failed",
+ "thp_split",
#endif
+
+#endif /* CONFIG_VM_EVENTS_COUNTERS */
};
static void zoneinfo_show_print(struct seq_file *m, pg_data_t *pgdat,
}
EXPORT_SYMBOL(p9_client_attach);
-struct p9_fid *p9_client_walk(struct p9_fid *oldfid, int nwname, char **wnames,
- int clone)
+struct p9_fid *p9_client_walk(struct p9_fid *oldfid, uint16_t nwname,
+ char **wnames, int clone)
{
int err;
struct p9_client *clnt;
struct p9_fid *fid;
struct p9_qid *wqids;
struct p9_req_t *req;
- int16_t nwqids, count;
+ uint16_t nwqids, count;
err = 0;
wqids = NULL;
fid = oldfid;
- P9_DPRINTK(P9_DEBUG_9P, ">>> TWALK fids %d,%d nwname %d wname[0] %s\n",
+ P9_DPRINTK(P9_DEBUG_9P, ">>> TWALK fids %d,%d nwname %ud wname[0] %s\n",
oldfid->fid, fid->fid, nwname, wnames ? wnames[0] : NULL);
req = p9_client_rpc(clnt, P9_TWALK, "ddT", oldfid->fid, fid->fid,
}
EXPORT_SYMBOL(p9_client_fsync);
-int p9_client_sync_fs(struct p9_fid *fid)
-{
- int err = 0;
- struct p9_req_t *req;
- struct p9_client *clnt;
-
- P9_DPRINTK(P9_DEBUG_9P, ">>> TSYNC_FS fid %d\n", fid->fid);
-
- clnt = fid->clnt;
- req = p9_client_rpc(clnt, P9_TSYNCFS, "d", fid->fid);
- if (IS_ERR(req)) {
- err = PTR_ERR(req);
- goto error;
- }
- P9_DPRINTK(P9_DEBUG_9P, "<<< RSYNCFS fid %d\n", fid->fid);
- p9_free_req(clnt, req);
-error:
- return err;
-}
-EXPORT_SYMBOL(p9_client_sync_fs);
-
int p9_client_clunk(struct p9_fid *fid)
{
int err;
}
break;
case 'T':{
- int16_t *nwname = va_arg(ap, int16_t *);
+ uint16_t *nwname = va_arg(ap, uint16_t *);
char ***wnames = va_arg(ap, char ***);
errcode = p9pdu_readf(pdu, proto_version,
case 'E':{
int32_t cnt = va_arg(ap, int32_t);
const char *k = va_arg(ap, const void *);
- const char *u = va_arg(ap, const void *);
+ const char __user *u = va_arg(ap,
+ const void __user *);
errcode = p9pdu_writef(pdu, proto_version, "d",
cnt);
if (!errcode && pdu_write_urw(pdu, k, u, cnt))
}
break;
case 'T':{
- int16_t nwname = va_arg(ap, int);
+ uint16_t nwname = va_arg(ap, int);
const char **wnames = va_arg(ap, const char **);
errcode = p9pdu_writef(pdu, proto_version, "w",
uint32_t pdata_mapped_pages;
struct trans_rpage_info *rpinfo;
- *pdata_off = (size_t)req->tc->pubuf & (PAGE_SIZE-1);
+ *pdata_off = (__force size_t)req->tc->pubuf & (PAGE_SIZE-1);
if (*pdata_off)
first_page_bytes = min(((size_t)PAGE_SIZE - *pdata_off),
outp = pack_sg_list_p(chan->sg, out, VIRTQUEUE_NUM,
pdata_off, rpinfo->rp_data, pdata_len);
} else {
- char *pbuf = req->tc->pubuf ? req->tc->pubuf :
- req->tc->pkbuf;
+ char *pbuf;
+ if (req->tc->pubuf)
+ pbuf = (__force char *) req->tc->pubuf;
+ else
+ pbuf = req->tc->pkbuf;
outp = pack_sg_list(chan->sg, out, VIRTQUEUE_NUM, pbuf,
req->tc->pbuf_size);
}
in = pack_sg_list_p(chan->sg, out+inp, VIRTQUEUE_NUM,
pdata_off, rpinfo->rp_data, pdata_len);
} else {
- char *pbuf = req->tc->pubuf ? req->tc->pubuf :
- req->tc->pkbuf;
+ char *pbuf;
+ if (req->tc->pubuf)
+ pbuf = (__force char *) req->tc->pubuf;
+ else
+ pbuf = req->tc->pkbuf;
+
in = pack_sg_list(chan->sg, out+inp, VIRTQUEUE_NUM,
pbuf, req->tc->pbuf_size);
}
goto drop;
}
- /* Zero out the CB buffer if no options present */
- if (iph->ihl == 5) {
- memset(IPCB(skb), 0, sizeof(struct inet_skb_parm));
+ memset(IPCB(skb), 0, sizeof(struct inet_skb_parm));
+ if (iph->ihl == 5)
return 0;
- }
opt->optlen = iph->ihl*4 - sizeof(struct iphdr);
if (ip_options_compile(dev_net(dev), opt, skb))
#include <net/caif/cfsrvl.h>
#include <net/caif/cfpkt.h>
+
#define container_obj(layr) ((struct cfsrvl *) layr)
#define DGM_CMD_BIT 0x80
static int cfdgml_transmit(struct cflayer *layr, struct cfpkt *pkt)
{
+ u8 packet_type;
u32 zero = 0;
struct caif_payload_info *info;
struct cfsrvl *service = container_obj(layr);
if (cfpkt_getlen(pkt) > DGM_MTU)
return -EMSGSIZE;
- cfpkt_add_head(pkt, &zero, 4);
+ cfpkt_add_head(pkt, &zero, 3);
+ packet_type = 0x08; /* B9 set - UNCLASSIFIED */
+ cfpkt_add_head(pkt, &packet_type, 1);
/* Add info for MUX-layer to route the packet out. */
info = cfpkt_info(pkt);
int phyid)
{
struct cfmuxl *muxl = container_obj(layr);
- struct list_head *node;
+ struct list_head *node, *next;
struct cflayer *layer;
- list_for_each(node, &muxl->srvl_list) {
+ list_for_each_safe(node, next, &muxl->srvl_list) {
layer = list_entry(node, struct cflayer, node);
if (cfsrvl_phyid_match(layer, phyid))
layer->ctrlcmd(layer, ctrl, phyid);
list_for_each_entry_safe(req, nreq, &osd->o_linger_requests,
r_linger_osd) {
- __unregister_linger_request(osdc, req);
+ /*
+ * reregister request prior to unregistering linger so
+ * that r_osd is preserved.
+ */
+ BUG_ON(!list_empty(&req->r_req_lru_item));
__register_request(osdc, req);
- list_move(&req->r_req_lru_item, &osdc->req_unsent);
+ list_add(&req->r_req_lru_item, &osdc->req_unsent);
+ list_add(&req->r_osd_item, &req->r_osd->o_requests);
+ __unregister_linger_request(osdc, req);
dout("requeued lingering %p tid %llu osd%d\n", req, req->r_tid,
osd->o_osd);
}
req->r_request->hdr.tid = cpu_to_le64(req->r_tid);
INIT_LIST_HEAD(&req->r_req_lru_item);
- dout("register_request %p tid %lld\n", req, req->r_tid);
+ dout("__register_request %p tid %lld\n", req, req->r_tid);
__insert_request(osdc, req);
ceph_osdc_get_request(req);
osdc->num_requests++;
}
/* TSO requires that SG is present as well. */
- if ((features & NETIF_F_TSO) && !(features & NETIF_F_SG)) {
- netdev_info(dev, "Dropping NETIF_F_TSO since no SG feature.\n");
- features &= ~NETIF_F_TSO;
+ if ((features & NETIF_F_ALL_TSO) && !(features & NETIF_F_SG)) {
+ netdev_info(dev, "Dropping TSO features since no SG feature.\n");
+ features &= ~NETIF_F_ALL_TSO;
}
+ /* TSO ECN requires that TSO is present as well. */
+ if ((features & NETIF_F_ALL_TSO) == NETIF_F_TSO_ECN)
+ features &= ~NETIF_F_TSO_ECN;
+
/* Software GSO depends on SG. */
if ((features & NETIF_F_GSO) && !(features & NETIF_F_SG)) {
netdev_info(dev, "Dropping NETIF_F_GSO since no SG feature.\n");
#include "dsa_priv.h"
#include "mv88e6xxx.h"
+/*
+ * Switch product IDs
+ */
+#define ID_6085 0x04a0
+#define ID_6095 0x0950
+#define ID_6131 0x1060
+
static char *mv88e6131_probe(struct mii_bus *bus, int sw_addr)
{
int ret;
ret = __mv88e6xxx_reg_read(bus, sw_addr, REG_PORT(0), 0x03);
if (ret >= 0) {
ret &= 0xfff0;
- if (ret == 0x0950)
+ if (ret == ID_6085)
+ return "Marvell 88E6085";
+ if (ret == ID_6095)
return "Marvell 88E6095/88E6095F";
- if (ret == 0x1060)
+ if (ret == ID_6131)
return "Marvell 88E6131";
}
static int mv88e6131_setup_port(struct dsa_switch *ds, int p)
{
+ struct mv88e6xxx_priv_state *ps = (void *)(ds + 1);
int addr = REG_PORT(p);
u16 val;
* MAC Forcing register: don't force link, speed, duplex
* or flow control state to any particular values on physical
* ports, but force the CPU port and all DSA ports to 1000 Mb/s
- * full duplex.
+ * (100 Mb/s on 6085) full duplex.
*/
if (dsa_is_cpu_port(ds, p) || ds->dsa_port_mask & (1 << p))
- REG_WRITE(addr, 0x01, 0x003e);
+ if (ps->id == ID_6085)
+ REG_WRITE(addr, 0x01, 0x003d); /* 100 Mb/s */
+ else
+ REG_WRITE(addr, 0x01, 0x003e); /* 1000 Mb/s */
else
REG_WRITE(addr, 0x01, 0x0003);
mv88e6xxx_ppu_state_init(ds);
mutex_init(&ps->stats_mutex);
+ ps->id = REG_READ(REG_PORT(0), 0x03) & 0xfff0;
+
ret = mv88e6131_switch_reset(ds);
if (ret < 0)
return ret;
* Hold this mutex over snapshot + dump sequences.
*/
struct mutex stats_mutex;
+
+ int id; /* switch product id */
};
struct mv88e6xxx_hw_stat {
obj-$(CONFIG_IEEE802154) += ieee802154.o af_802154.o
ieee802154-y := netlink.o nl-mac.o nl-phy.o nl_policy.o wpan-class.o
af_802154-y := af_ieee802154.o raw.o dgram.o
-
-ccflags-y += -Wall -DDEBUG
!sk2->sk_bound_dev_if ||
sk->sk_bound_dev_if == sk2->sk_bound_dev_if)) {
if (!reuse || !sk2->sk_reuse ||
- ((1 << sk2->sk_state) & (TCPF_LISTEN | TCPF_CLOSE))) {
+ sk2->sk_state == TCP_LISTEN) {
const __be32 sk2_rcv_saddr = sk_rcv_saddr(sk2);
if (!sk2_rcv_saddr || !sk_rcv_saddr(sk) ||
sk2_rcv_saddr == sk_rcv_saddr(sk))
(tb->num_owners < smallest_size || smallest_size == -1)) {
smallest_size = tb->num_owners;
smallest_rover = rover;
- if (atomic_read(&hashinfo->bsockets) > (high - low) + 1 &&
- !inet_csk(sk)->icsk_af_ops->bind_conflict(sk, tb)) {
+ if (atomic_read(&hashinfo->bsockets) > (high - low) + 1) {
spin_unlock(&head->lock);
snum = smallest_rover;
goto have_snum;
}
/* May be called with local BH enabled. */
-static void unlink_from_pool(struct inet_peer *p, struct inet_peer_base *base)
+static void unlink_from_pool(struct inet_peer *p, struct inet_peer_base *base,
+ struct inet_peer __rcu **stack[PEER_MAXDEPTH])
{
int do_free;
* We use refcnt=-1 to alert lockless readers this entry is deleted.
*/
if (atomic_cmpxchg(&p->refcnt, 1, -1) == 1) {
- struct inet_peer __rcu **stack[PEER_MAXDEPTH];
struct inet_peer __rcu ***stackptr, ***delp;
if (lookup(&p->daddr, stack, base) != p)
BUG();
}
/* May be called with local BH enabled. */
-static int cleanup_once(unsigned long ttl)
+static int cleanup_once(unsigned long ttl, struct inet_peer __rcu **stack[PEER_MAXDEPTH])
{
struct inet_peer *p = NULL;
* happen because of entry limits in route cache. */
return -1;
- unlink_from_pool(p, peer_to_base(p));
+ unlink_from_pool(p, peer_to_base(p), stack);
return 0;
}
if (base->total >= inet_peer_threshold)
/* Remove one less-recently-used entry. */
- cleanup_once(0);
+ cleanup_once(0, stack);
return p;
}
{
unsigned long now = jiffies;
int ttl, total;
+ struct inet_peer __rcu **stack[PEER_MAXDEPTH];
total = compute_total();
if (total >= inet_peer_threshold)
ttl = inet_peer_maxttl
- (inet_peer_maxttl - inet_peer_minttl) / HZ *
total / inet_peer_threshold * HZ;
- while (!cleanup_once(ttl)) {
+ while (!cleanup_once(ttl, stack)) {
if (jiffies != now)
break;
}
pp_ptr = optptr + 2;
goto error;
}
- if (skb) {
+ if (rt) {
memcpy(&optptr[optptr[2]-1], &rt->rt_spec_dst, 4);
opt->is_changed = 1;
}
goto error;
}
opt->ts = optptr - iph;
- if (skb) {
+ if (rt) {
memcpy(&optptr[optptr[2]-1], &rt->rt_spec_dst, 4);
timeptr = (__be32*)&optptr[optptr[2]+3];
}
unsigned long orefdst;
int err;
- if (!opt->srr)
+ if (!opt->srr || !rt)
return 0;
if (skb->pkt_type != PACKET_HOST)
return csum;
}
-static int nf_ip_route(struct dst_entry **dst, struct flowi *fl)
+static int nf_ip_route(struct net *net, struct dst_entry **dst,
+ struct flowi *fl, bool strict __always_unused)
{
- struct rtable *rt = ip_route_output_key(&init_net, &fl->u.ip4);
+ struct rtable *rt = ip_route_output_key(net, &fl->u.ip4);
if (IS_ERR(rt))
return PTR_ERR(rt);
*dst = &rt->dst;
#ifdef CONFIG_IP_ROUTE_CLASSID
rth->dst.tclassid = itag;
#endif
+ rth->rt_route_iif = dev->ifindex;
rth->rt_iif = dev->ifindex;
rth->dst.dev = init_net.loopback_dev;
dev_hold(rth->dst.dev);
rth->rt_key_src = saddr;
rth->rt_src = saddr;
rth->rt_gateway = daddr;
+ rth->rt_route_iif = in_dev->dev->ifindex;
rth->rt_iif = in_dev->dev->ifindex;
rth->dst.dev = (out_dev)->dev;
dev_hold(rth->dst.dev);
#ifdef CONFIG_IP_ROUTE_CLASSID
rth->dst.tclassid = itag;
#endif
+ rth->rt_route_iif = dev->ifindex;
rth->rt_iif = dev->ifindex;
rth->dst.dev = net->loopback_dev;
dev_hold(rth->dst.dev);
rth->rt_mark = oldflp4->flowi4_mark;
rth->rt_dst = fl4->daddr;
rth->rt_src = fl4->saddr;
- rth->rt_iif = 0;
+ rth->rt_route_iif = 0;
+ rth->rt_iif = oldflp4->flowi4_oif ? : dev_out->ifindex;
/* get references to the devices that are to be hold by the routing
cache entry */
rth->dst.dev = dev_out;
rt->rt_key_dst = ort->rt_key_dst;
rt->rt_key_src = ort->rt_key_src;
rt->rt_tos = ort->rt_tos;
+ rt->rt_route_iif = ort->rt_route_iif;
rt->rt_iif = ort->rt_iif;
rt->rt_oif = ort->rt_oif;
rt->rt_mark = ort->rt_mark;
rt->rt_type = ort->rt_type;
rt->rt_dst = ort->rt_dst;
rt->rt_src = ort->rt_src;
- rt->rt_iif = ort->rt_iif;
rt->rt_gateway = ort->rt_gateway;
rt->rt_spec_dst = ort->rt_spec_dst;
rt->peer = ort->peer;
.mode = 0644,
.proc_handler = proc_do_large_bitmap,
},
-#ifdef CONFIG_IP_MULTICAST
{
.procname = "igmp_max_memberships",
.data = &sysctl_igmp_max_memberships,
.mode = 0644,
.proc_handler = proc_dointvec
},
-
-#endif
{
.procname = "igmp_max_msf",
.data = &sysctl_igmp_max_msf,
rt->rt_key_dst = fl4->daddr;
rt->rt_key_src = fl4->saddr;
rt->rt_tos = fl4->flowi4_tos;
+ rt->rt_route_iif = fl4->flowi4_iif;
rt->rt_iif = fl4->flowi4_iif;
rt->rt_oif = fl4->flowi4_oif;
rt->rt_mark = fl4->flowi4_mark;
!sk2->sk_bound_dev_if ||
sk->sk_bound_dev_if == sk2->sk_bound_dev_if) &&
(!sk->sk_reuse || !sk2->sk_reuse ||
- ((1 << sk2->sk_state) & (TCPF_LISTEN | TCPF_CLOSE))) &&
+ sk2->sk_state == TCP_LISTEN) &&
ipv6_rcv_saddr_equal(sk, sk2))
break;
}
return 0;
}
-static int nf_ip6_route(struct dst_entry **dst, struct flowi *fl)
+static int nf_ip6_route(struct net *net, struct dst_entry **dst,
+ struct flowi *fl, bool strict)
{
- *dst = ip6_route_output(&init_net, NULL, &fl->u.ip6);
+ static const struct ipv6_pinfo fake_pinfo;
+ static const struct inet_sock fake_sk = {
+ /* makes ip6_route_output set RT6_LOOKUP_F_IFACE: */
+ .sk.sk_bound_dev_if = 1,
+ .pinet6 = (struct ipv6_pinfo *) &fake_pinfo,
+ };
+ const void *sk = strict ? &fake_sk : NULL;
+
+ *dst = ip6_route_output(net, sk, &fl->u.ip6);
return (*dst)->error;
}
opt_skb = skb_clone(skb, GFP_ATOMIC);
if (sk->sk_state == TCP_ESTABLISHED) { /* Fast path */
+ sock_rps_save_rxhash(sk, skb->rxhash);
if (tcp_rcv_established(sk, skb, tcp_hdr(skb), skb->len))
goto reset;
if (opt_skb)
__kfree_skb(opt_skb);
return 0;
}
- }
+ } else
+ sock_rps_save_rxhash(sk, skb->rxhash);
if (tcp_rcv_state_process(sk, skb, tcp_hdr(skb), skb->len))
goto reset;
int rc;
int is_udplite = IS_UDPLITE(sk);
+ if (!ipv6_addr_any(&inet6_sk(sk)->daddr))
+ sock_rps_save_rxhash(sk, skb->rxhash);
+
if (!xfrm6_policy_check(sk, XFRM_POLICY_IN, skb))
goto drop;
/* Note : socket.c set MSG_EOR on SEQPACKET sockets */
if (msg->msg_flags & ~(MSG_DONTWAIT | MSG_EOR | MSG_CMSG_COMPAT |
MSG_NOSIGNAL)) {
- err = -EINVAL;
- goto out;
+ return -EINVAL;
}
lock_sock(sk);
s32 data_size = ntohs(pdulen) - llc_len;
if (data_size < 0 ||
- ((skb_tail_pointer(skb) -
- (u8 *)pdu) - llc_len) < data_size)
+ !pskb_may_pull(skb, data_size))
return 0;
if (unlikely(pskb_trim_rcsum(skb, data_size)))
return 0;
* same TID from the same station
*/
rx->skb = skb;
- rx->flags = 0;
CALL_RXH(ieee80211_rx_h_decrypt)
CALL_RXH(ieee80211_rx_h_check_more_data)
.sdata = sta->sdata,
.local = sta->local,
.queue = tid,
+ .flags = 0,
};
struct tid_ampdu_rx *tid_agg_rx;
config NETFILTER_XT_MATCH_ADDRTYPE
tristate '"addrtype" address type match support'
depends on NETFILTER_ADVANCED
- depends on (IPV6 || IPV6=n)
---help---
This option allows you to match what routing thinks of an address,
eg. UNICAST, LOCAL, BROADCAST, ...
NLA_PUT_IPADDR4(skb, IPSET_ATTR_IP_TO, htonl(map->last_ip));
if (map->netmask != 32)
NLA_PUT_U8(skb, IPSET_ATTR_NETMASK, map->netmask);
- NLA_PUT_NET32(skb, IPSET_ATTR_REFERENCES,
- htonl(atomic_read(&set->ref) - 1));
+ NLA_PUT_NET32(skb, IPSET_ATTR_REFERENCES, htonl(set->ref - 1));
NLA_PUT_NET32(skb, IPSET_ATTR_MEMSIZE,
htonl(sizeof(*map) + map->memsize));
if (with_timeout(map->timeout))
ipset_adtfn adtfn = set->variant->adt[adt];
struct ipmac data;
+ /* MAC can be src only */
+ if (!(flags & IPSET_DIM_TWO_SRC))
+ return 0;
+
data.id = ntohl(ip4addr(skb, flags & IPSET_DIM_ONE_SRC));
if (data.id < map->first_ip || data.id > map->last_ip)
return -IPSET_ERR_BITMAP_RANGE;
goto nla_put_failure;
NLA_PUT_IPADDR4(skb, IPSET_ATTR_IP, htonl(map->first_ip));
NLA_PUT_IPADDR4(skb, IPSET_ATTR_IP_TO, htonl(map->last_ip));
- NLA_PUT_NET32(skb, IPSET_ATTR_REFERENCES,
- htonl(atomic_read(&set->ref) - 1));
+ NLA_PUT_NET32(skb, IPSET_ATTR_REFERENCES, htonl(set->ref - 1));
NLA_PUT_NET32(skb, IPSET_ATTR_MEMSIZE,
htonl(sizeof(*map)
+ (map->last_ip - map->first_ip + 1) * map->dsize));
goto nla_put_failure;
NLA_PUT_NET16(skb, IPSET_ATTR_PORT, htons(map->first_port));
NLA_PUT_NET16(skb, IPSET_ATTR_PORT_TO, htons(map->last_port));
- NLA_PUT_NET32(skb, IPSET_ATTR_REFERENCES,
- htonl(atomic_read(&set->ref) - 1));
+ NLA_PUT_NET32(skb, IPSET_ATTR_REFERENCES, htonl(set->ref - 1));
NLA_PUT_NET32(skb, IPSET_ATTR_MEMSIZE,
htonl(sizeof(*map) + map->memsize));
if (with_timeout(map->timeout))
static LIST_HEAD(ip_set_type_list); /* all registered set types */
static DEFINE_MUTEX(ip_set_type_mutex); /* protects ip_set_type_list */
+static DEFINE_RWLOCK(ip_set_ref_lock); /* protects the set refs */
static struct ip_set **ip_set_list; /* all individual sets */
static ip_set_id_t ip_set_max = CONFIG_IP_SET_MAX; /* max number of sets */
static inline void
__ip_set_get(ip_set_id_t index)
{
- atomic_inc(&ip_set_list[index]->ref);
+ write_lock_bh(&ip_set_ref_lock);
+ ip_set_list[index]->ref++;
+ write_unlock_bh(&ip_set_ref_lock);
}
static inline void
__ip_set_put(ip_set_id_t index)
{
- atomic_dec(&ip_set_list[index]->ref);
+ write_lock_bh(&ip_set_ref_lock);
+ BUG_ON(ip_set_list[index]->ref == 0);
+ ip_set_list[index]->ref--;
+ write_unlock_bh(&ip_set_ref_lock);
}
/*
struct ip_set *set = ip_set_list[index];
int ret = 0;
- BUG_ON(set == NULL || atomic_read(&set->ref) == 0);
+ BUG_ON(set == NULL);
pr_debug("set %s, index %u\n", set->name, index);
if (dim < set->type->dimension ||
struct ip_set *set = ip_set_list[index];
int ret;
- BUG_ON(set == NULL || atomic_read(&set->ref) == 0);
+ BUG_ON(set == NULL);
pr_debug("set %s, index %u\n", set->name, index);
if (dim < set->type->dimension ||
struct ip_set *set = ip_set_list[index];
int ret = 0;
- BUG_ON(set == NULL || atomic_read(&set->ref) == 0);
+ BUG_ON(set == NULL);
pr_debug("set %s, index %u\n", set->name, index);
if (dim < set->type->dimension ||
* Find set by name, reference it once. The reference makes sure the
* thing pointed to, does not go away under our feet.
*
- * The nfnl mutex must already be activated.
*/
ip_set_id_t
ip_set_get_byname(const char *name, struct ip_set **set)
* reference count by 1. The caller shall not assume the index
* to be valid, after calling this function.
*
- * The nfnl mutex must already be activated.
*/
void
ip_set_put_byindex(ip_set_id_t index)
{
- if (ip_set_list[index] != NULL) {
- BUG_ON(atomic_read(&ip_set_list[index]->ref) == 0);
+ if (ip_set_list[index] != NULL)
__ip_set_put(index);
- }
}
EXPORT_SYMBOL_GPL(ip_set_put_byindex);
* can't be destroyed. The set cannot be renamed due to
* the referencing either.
*
- * The nfnl mutex must already be activated.
*/
const char *
ip_set_name_byindex(ip_set_id_t index)
const struct ip_set *set = ip_set_list[index];
BUG_ON(set == NULL);
- BUG_ON(atomic_read(&set->ref) == 0);
+ BUG_ON(set->ref == 0);
/* Referenced, so it's safe */
return set->name;
ip_set_nfnl_put(ip_set_id_t index)
{
nfnl_lock();
- if (ip_set_list[index] != NULL) {
- BUG_ON(atomic_read(&ip_set_list[index]->ref) == 0);
- __ip_set_put(index);
- }
+ ip_set_put_byindex(index);
nfnl_unlock();
}
EXPORT_SYMBOL_GPL(ip_set_nfnl_put);
/*
* Communication protocol with userspace over netlink.
*
- * We already locked by nfnl_lock.
+ * The commands are serialized by the nfnl mutex.
*/
static inline bool
return -ENOMEM;
rwlock_init(&set->lock);
strlcpy(set->name, name, IPSET_MAXNAMELEN);
- atomic_set(&set->ref, 0);
set->family = family;
/*
/*
* Here, we have a valid, constructed set and we are protected
- * by nfnl_lock. Find the first free index in ip_set_list and
- * check clashing.
+ * by the nfnl mutex. Find the first free index in ip_set_list
+ * and check clashing.
*/
if ((ret = find_free_id(set->name, &index, &clash)) != 0) {
/* If this is the same set and requested, ignore error */
const struct nlattr * const attr[])
{
ip_set_id_t i;
+ int ret = 0;
if (unlikely(protocol_failed(attr)))
return -IPSET_ERR_PROTOCOL;
- /* References are protected by the nfnl mutex */
+ /* Commands are serialized and references are
+ * protected by the ip_set_ref_lock.
+ * External systems (i.e. xt_set) must call
+ * ip_set_put|get_nfnl_* functions, that way we
+ * can safely check references here.
+ *
+ * list:set timer can only decrement the reference
+ * counter, so if it's already zero, we can proceed
+ * without holding the lock.
+ */
+ read_lock_bh(&ip_set_ref_lock);
if (!attr[IPSET_ATTR_SETNAME]) {
for (i = 0; i < ip_set_max; i++) {
- if (ip_set_list[i] != NULL &&
- (atomic_read(&ip_set_list[i]->ref)))
- return -IPSET_ERR_BUSY;
+ if (ip_set_list[i] != NULL && ip_set_list[i]->ref) {
+ ret = IPSET_ERR_BUSY;
+ goto out;
+ }
}
+ read_unlock_bh(&ip_set_ref_lock);
for (i = 0; i < ip_set_max; i++) {
if (ip_set_list[i] != NULL)
ip_set_destroy_set(i);
}
} else {
i = find_set_id(nla_data(attr[IPSET_ATTR_SETNAME]));
- if (i == IPSET_INVALID_ID)
- return -ENOENT;
- else if (atomic_read(&ip_set_list[i]->ref))
- return -IPSET_ERR_BUSY;
+ if (i == IPSET_INVALID_ID) {
+ ret = -ENOENT;
+ goto out;
+ } else if (ip_set_list[i]->ref) {
+ ret = -IPSET_ERR_BUSY;
+ goto out;
+ }
+ read_unlock_bh(&ip_set_ref_lock);
ip_set_destroy_set(i);
}
return 0;
+out:
+ read_unlock_bh(&ip_set_ref_lock);
+ return ret;
}
/* Flush sets */
struct ip_set *set;
const char *name2;
ip_set_id_t i;
+ int ret = 0;
if (unlikely(protocol_failed(attr) ||
attr[IPSET_ATTR_SETNAME] == NULL ||
set = find_set(nla_data(attr[IPSET_ATTR_SETNAME]));
if (set == NULL)
return -ENOENT;
- if (atomic_read(&set->ref) != 0)
- return -IPSET_ERR_REFERENCED;
+
+ read_lock_bh(&ip_set_ref_lock);
+ if (set->ref != 0) {
+ ret = -IPSET_ERR_REFERENCED;
+ goto out;
+ }
name2 = nla_data(attr[IPSET_ATTR_SETNAME2]);
for (i = 0; i < ip_set_max; i++) {
if (ip_set_list[i] != NULL &&
- STREQ(ip_set_list[i]->name, name2))
- return -IPSET_ERR_EXIST_SETNAME2;
+ STREQ(ip_set_list[i]->name, name2)) {
+ ret = -IPSET_ERR_EXIST_SETNAME2;
+ goto out;
+ }
}
strncpy(set->name, name2, IPSET_MAXNAMELEN);
- return 0;
+out:
+ read_unlock_bh(&ip_set_ref_lock);
+ return ret;
}
/* Swap two sets so that name/index points to the other.
* References and set names are also swapped.
*
- * We are protected by the nfnl mutex and references are
- * manipulated only by holding the mutex. The kernel interfaces
+ * The commands are serialized by the nfnl mutex and references are
+ * protected by the ip_set_ref_lock. The kernel interfaces
* do not hold the mutex but the pointer settings are atomic
* so the ip_set_list always contains valid pointers to the sets.
*/
struct ip_set *from, *to;
ip_set_id_t from_id, to_id;
char from_name[IPSET_MAXNAMELEN];
- u32 from_ref;
if (unlikely(protocol_failed(attr) ||
attr[IPSET_ATTR_SETNAME] == NULL ||
from->type->family == to->type->family))
return -IPSET_ERR_TYPE_MISMATCH;
- /* No magic here: ref munging protected by the nfnl_lock */
strncpy(from_name, from->name, IPSET_MAXNAMELEN);
- from_ref = atomic_read(&from->ref);
-
strncpy(from->name, to->name, IPSET_MAXNAMELEN);
- atomic_set(&from->ref, atomic_read(&to->ref));
strncpy(to->name, from_name, IPSET_MAXNAMELEN);
- atomic_set(&to->ref, from_ref);
+ write_lock_bh(&ip_set_ref_lock);
+ swap(from->ref, to->ref);
ip_set_list[from_id] = to;
ip_set_list[to_id] = from;
+ write_unlock_bh(&ip_set_ref_lock);
return 0;
}
{
if (cb->args[2]) {
pr_debug("release set %s\n", ip_set_list[cb->args[1]]->name);
- __ip_set_put((ip_set_id_t) cb->args[1]);
+ ip_set_put_byindex((ip_set_id_t) cb->args[1]);
}
return 0;
}
if (cb->args[1] >= ip_set_max)
goto out;
- pr_debug("args[0]: %ld args[1]: %ld\n", cb->args[0], cb->args[1]);
max = cb->args[0] == DUMP_ONE ? cb->args[1] + 1 : ip_set_max;
+dump_last:
+ pr_debug("args[0]: %ld args[1]: %ld\n", cb->args[0], cb->args[1]);
for (; cb->args[1] < max; cb->args[1]++) {
index = (ip_set_id_t) cb->args[1];
set = ip_set_list[index];
* so that lists (unions of sets) are dumped last.
*/
if (cb->args[0] != DUMP_ONE &&
- !((cb->args[0] == DUMP_ALL) ^
- (set->type->features & IPSET_DUMP_LAST)))
+ ((cb->args[0] == DUMP_ALL) ==
+ !!(set->type->features & IPSET_DUMP_LAST)))
continue;
pr_debug("List set: %s\n", set->name);
if (!cb->args[2]) {
goto release_refcount;
}
}
+ /* If we dump all sets, continue with dumping last ones */
+ if (cb->args[0] == DUMP_ALL) {
+ cb->args[0] = DUMP_LAST;
+ cb->args[1] = 0;
+ goto dump_last;
+ }
goto out;
nla_put_failure:
/* If there was an error or set is done, release set */
if (ret || !cb->args[2]) {
pr_debug("release set %s\n", ip_set_list[index]->name);
- __ip_set_put(index);
+ ip_set_put_byindex(index);
}
-
- /* If we dump all sets, continue with dumping last ones */
- if (cb->args[0] == DUMP_ALL && cb->args[1] >= max && !cb->args[2])
- cb->args[0] = DUMP_LAST;
-
out:
if (nlh) {
nlmsg_end(skb, nlh);
static inline struct set_elem *
list_set_elem(const struct list_set *map, u32 id)
{
- return (struct set_elem *)((char *)map->members + id * map->dsize);
+ return (struct set_elem *)((void *)map->members + id * map->dsize);
+}
+
+static inline struct set_telem *
+list_set_telem(const struct list_set *map, u32 id)
+{
+ return (struct set_telem *)((void *)map->members + id * map->dsize);
}
static inline bool
list_set_timeout(const struct list_set *map, u32 id)
{
- const struct set_telem *elem =
- (const struct set_telem *) list_set_elem(map, id);
+ const struct set_telem *elem = list_set_telem(map, id);
return ip_set_timeout_test(elem->timeout);
}
static inline bool
list_set_expired(const struct list_set *map, u32 id)
{
- const struct set_telem *elem =
- (const struct set_telem *) list_set_elem(map, id);
+ const struct set_telem *elem = list_set_telem(map, id);
return ip_set_timeout_expired(elem->timeout);
}
-static inline int
-list_set_exist(const struct set_telem *elem)
-{
- return elem->id != IPSET_INVALID_ID &&
- !ip_set_timeout_expired(elem->timeout);
-}
-
/* Set list without and with timeout */
static int
struct set_telem *e;
for (; i < map->size; i++) {
- e = (struct set_telem *)list_set_elem(map, i);
+ e = list_set_telem(map, i);
swap(e->id, id);
+ swap(e->timeout, timeout);
if (e->id == IPSET_INVALID_ID)
break;
- swap(e->timeout, timeout);
}
}
/* Last element replaced: e.g. add new,before,last */
ip_set_put_byindex(e->id);
if (with_timeout(map->timeout))
- list_elem_tadd(map, i, id, timeout);
+ list_elem_tadd(map, i, id, ip_set_timeout_set(timeout));
else
list_elem_add(map, i, id);
}
static int
-list_set_del(struct list_set *map, ip_set_id_t id, u32 i)
+list_set_del(struct list_set *map, u32 i)
{
struct set_elem *a = list_set_elem(map, i), *b;
- ip_set_put_byindex(id);
+ ip_set_put_byindex(a->id);
for (; i < map->size - 1; i++) {
b = list_set_elem(map, i + 1);
(before == 0 ||
(before > 0 &&
next_id_eq(map, i, refid))))
- ret = list_set_del(map, id, i);
+ ret = list_set_del(map, i);
else if (before < 0 &&
elem->id == refid &&
next_id_eq(map, i, id))
- ret = list_set_del(map, id, i + 1);
+ ret = list_set_del(map, i + 1);
}
break;
default:
NLA_PUT_NET32(skb, IPSET_ATTR_SIZE, htonl(map->size));
if (with_timeout(map->timeout))
NLA_PUT_NET32(skb, IPSET_ATTR_TIMEOUT, htonl(map->timeout));
- NLA_PUT_NET32(skb, IPSET_ATTR_REFERENCES,
- htonl(atomic_read(&set->ref) - 1));
+ NLA_PUT_NET32(skb, IPSET_ATTR_REFERENCES, htonl(set->ref - 1));
NLA_PUT_NET32(skb, IPSET_ATTR_MEMSIZE,
htonl(sizeof(*map) + map->size * map->dsize));
ipset_nest_end(skb, nested);
struct set_telem *e;
u32 i;
- /* We run parallel with other readers (test element)
- * but adding/deleting new entries is locked out */
- read_lock_bh(&set->lock);
- for (i = map->size - 1; i >= 0; i--) {
- e = (struct set_telem *) list_set_elem(map, i);
- if (e->id != IPSET_INVALID_ID &&
- list_set_expired(map, i))
- list_set_del(map, e->id, i);
+ write_lock_bh(&set->lock);
+ for (i = 0; i < map->size; i++) {
+ e = list_set_telem(map, i);
+ if (e->id != IPSET_INVALID_ID && list_set_expired(map, i))
+ list_set_del(map, i);
}
- read_unlock_bh(&set->lock);
+ write_unlock_bh(&set->lock);
map->gc.expires = jiffies + IPSET_GC_PERIOD(map->timeout) * HZ;
add_timer(&map->gc);
static int ip_vs_genl_dump_daemons(struct sk_buff *skb,
struct netlink_callback *cb)
{
- struct net *net = skb_net(skb);
+ struct net *net = skb_sknet(skb);
struct netns_ipvs *ipvs = net_ipvs(net);
mutex_lock(&__ip_vs_mutex);
CHECK_BOUND(bs, 2);
count = *bs->cur++;
count <<= 8;
- count = *bs->cur++;
+ count += *bs->cur++;
break;
case SEMI:
BYTE_ALIGN(bs);
memset(&fl2, 0, sizeof(fl2));
fl2.daddr = dst->ip;
- if (!afinfo->route((struct dst_entry **)&rt1,
- flowi4_to_flowi(&fl1))) {
- if (!afinfo->route((struct dst_entry **)&rt2,
- flowi4_to_flowi(&fl2))) {
+ if (!afinfo->route(&init_net, (struct dst_entry **)&rt1,
+ flowi4_to_flowi(&fl1), false)) {
+ if (!afinfo->route(&init_net, (struct dst_entry **)&rt2,
+ flowi4_to_flowi(&fl2), false)) {
if (rt1->rt_gateway == rt2->rt_gateway &&
rt1->dst.dev == rt2->dst.dev)
ret = 1;
memset(&fl2, 0, sizeof(fl2));
ipv6_addr_copy(&fl2.daddr, &dst->in6);
- if (!afinfo->route((struct dst_entry **)&rt1,
- flowi6_to_flowi(&fl1))) {
- if (!afinfo->route((struct dst_entry **)&rt2,
- flowi6_to_flowi(&fl2))) {
+ if (!afinfo->route(&init_net, (struct dst_entry **)&rt1,
+ flowi6_to_flowi(&fl1), false)) {
+ if (!afinfo->route(&init_net, (struct dst_entry **)&rt2,
+ flowi6_to_flowi(&fl2), false)) {
if (!memcmp(&rt1->rt6i_gateway, &rt2->rt6i_gateway,
sizeof(rt1->rt6i_gateway)) &&
rt1->dst.dev == rt2->dst.dev)
rcu_read_lock();
ai = nf_get_afinfo(family);
if (ai != NULL)
- ai->route((struct dst_entry **)&rt, &fl);
+ ai->route(&init_net, (struct dst_entry **)&rt, &fl, false);
rcu_read_unlock();
if (rt != NULL) {
MODULE_ALIAS("ip6t_addrtype");
#if defined(CONFIG_IP6_NF_IPTABLES) || defined(CONFIG_IP6_NF_IPTABLES_MODULE)
-static u32 xt_addrtype_rt6_to_type(const struct rt6_info *rt)
+static u32 match_lookup_rt6(struct net *net, const struct net_device *dev,
+ const struct in6_addr *addr)
{
+ const struct nf_afinfo *afinfo;
+ struct flowi6 flow;
+ struct rt6_info *rt;
u32 ret;
+ int route_err;
- if (!rt)
+ memset(&flow, 0, sizeof(flow));
+ ipv6_addr_copy(&flow.daddr, addr);
+ if (dev)
+ flow.flowi6_oif = dev->ifindex;
+
+ rcu_read_lock();
+
+ afinfo = nf_get_afinfo(NFPROTO_IPV6);
+ if (afinfo != NULL)
+ route_err = afinfo->route(net, (struct dst_entry **)&rt,
+ flowi6_to_flowi(&flow), !!dev);
+ else
+ route_err = 1;
+
+ rcu_read_unlock();
+
+ if (route_err)
return XT_ADDRTYPE_UNREACHABLE;
if (rt->rt6i_flags & RTF_REJECT)
ret |= XT_ADDRTYPE_LOCAL;
if (rt->rt6i_flags & RTF_ANYCAST)
ret |= XT_ADDRTYPE_ANYCAST;
+
+
+ dst_release(&rt->dst);
return ret;
}
return false;
if ((XT_ADDRTYPE_LOCAL | XT_ADDRTYPE_ANYCAST |
- XT_ADDRTYPE_UNREACHABLE) & mask) {
- struct rt6_info *rt;
- u32 type;
- int ifindex = dev ? dev->ifindex : 0;
-
- rt = rt6_lookup(net, addr, NULL, ifindex, !!dev);
-
- type = xt_addrtype_rt6_to_type(rt);
-
- dst_release(&rt->dst);
- return !!(mask & type);
- }
+ XT_ADDRTYPE_UNREACHABLE) & mask)
+ return !!(mask & match_lookup_rt6(net, dev, addr));
return true;
}
return info->match_flags & XT_CONNTRACK_STATE;
if ((info->match_flags & XT_CONNTRACK_DIRECTION) &&
(CTINFO2DIR(ctinfo) == IP_CT_DIR_ORIGINAL) ^
- !!(info->invert_flags & XT_CONNTRACK_DIRECTION))
+ !(info->invert_flags & XT_CONNTRACK_DIRECTION))
return false;
if (info->match_flags & XT_CONNTRACK_ORIGSRC)
if (info->match_set.u.flags[IPSET_DIM_MAX-1] != 0) {
pr_warning("Protocol error: set match dimension "
"is over the limit!\n");
+ ip_set_nfnl_put(info->match_set.index);
return -ERANGE;
}
if (index == IPSET_INVALID_ID) {
pr_warning("Cannot find del_set index %u as target\n",
info->del_set.index);
+ if (info->add_set.index != IPSET_INVALID_ID)
+ ip_set_nfnl_put(info->add_set.index);
return -ENOENT;
}
}
info->del_set.u.flags[IPSET_DIM_MAX-1] != 0) {
pr_warning("Protocol error: SET target dimension "
"is over the limit!\n");
+ if (info->add_set.index != IPSET_INVALID_ID)
+ ip_set_nfnl_put(info->add_set.index);
+ if (info->del_set.index != IPSET_INVALID_ID)
+ ip_set_nfnl_put(info->del_set.index);
return -ERANGE;
}
if (info->match_set.dim > IPSET_DIM_MAX) {
pr_warning("Protocol error: set match dimension "
"is over the limit!\n");
+ ip_set_nfnl_put(info->match_set.index);
return -ERANGE;
}
if (info->del_set.index != IPSET_INVALID_ID)
ip_set_del(info->del_set.index,
skb, par->family,
- info->add_set.dim,
+ info->del_set.dim,
info->del_set.flags);
return XT_CONTINUE;
if (index == IPSET_INVALID_ID) {
pr_warning("Cannot find del_set index %u as target\n",
info->del_set.index);
+ if (info->add_set.index != IPSET_INVALID_ID)
+ ip_set_nfnl_put(info->add_set.index);
return -ENOENT;
}
}
if (info->add_set.dim > IPSET_DIM_MAX ||
- info->del_set.flags > IPSET_DIM_MAX) {
+ info->del_set.dim > IPSET_DIM_MAX) {
pr_warning("Protocol error: SET target dimension "
"is over the limit!\n");
+ if (info->add_set.index != IPSET_INVALID_ID)
+ ip_set_nfnl_put(info->add_set.index);
+ if (info->del_set.index != IPSET_INVALID_ID)
+ ip_set_nfnl_put(info->del_set.index);
return -ERANGE;
}
sctp_assoc_set_primary(asoc, transport);
if (asoc->peer.active_path == peer)
asoc->peer.active_path = transport;
+ if (asoc->peer.retran_path == peer)
+ asoc->peer.retran_path = transport;
if (asoc->peer.last_data_from == peer)
asoc->peer.last_data_from = transport;
if (t)
asoc->peer.retran_path = t;
+ else
+ t = asoc->peer.retran_path;
SCTP_DEBUG_PRINTK_IPADDR("sctp_assoc_update_retran_path:association"
" %p addr: ",
if (!prtd || !prtd->params)
return 0;
+ if (prtd->dma_ch == -1)
+ return -EINVAL;
+
DCSR(prtd->dma_ch) &= ~DCSR_RUN;
DCSR(prtd->dma_ch) = 0;
DCMD(prtd->dma_ch) = 0;
SND_PCI_QUIRK(0x17aa, 0x21c6, "Thinkpad Edge 13", CXT5066_ASUS),
SND_PCI_QUIRK(0x17aa, 0x215e, "Lenovo Thinkpad", CXT5066_THINKPAD),
SND_PCI_QUIRK(0x17aa, 0x21da, "Lenovo X220", CXT5066_THINKPAD),
+ SND_PCI_QUIRK(0x17aa, 0x21db, "Lenovo X220-tablet", CXT5066_THINKPAD),
SND_PCI_QUIRK(0x17aa, 0x38af, "Lenovo G560", CXT5066_ASUS),
SND_PCI_QUIRK_VENDOR(0x17aa, "Lenovo", CXT5066_IDEAPAD), /* Fallback for Lenovos without dock mic */
{}
stream_tag, format, substream);
}
+static void nvhdmi_8ch_7x_set_info_frame_parameters(struct hda_codec *codec,
+ int channels)
+{
+ unsigned int chanmask;
+ int chan = channels ? (channels - 1) : 1;
+
+ switch (channels) {
+ default:
+ case 0:
+ case 2:
+ chanmask = 0x00;
+ break;
+ case 4:
+ chanmask = 0x08;
+ break;
+ case 6:
+ chanmask = 0x0b;
+ break;
+ case 8:
+ chanmask = 0x13;
+ break;
+ }
+
+ /* Set the audio infoframe channel allocation and checksum fields. The
+ * channel count is computed implicitly by the hardware. */
+ snd_hda_codec_write(codec, 0x1, 0,
+ Nv_VERB_SET_Channel_Allocation, chanmask);
+
+ snd_hda_codec_write(codec, 0x1, 0,
+ Nv_VERB_SET_Info_Frame_Checksum,
+ (0x71 - chan - chanmask));
+}
+
static int nvhdmi_8ch_7x_pcm_close(struct hda_pcm_stream *hinfo,
struct hda_codec *codec,
struct snd_pcm_substream *substream)
AC_VERB_SET_STREAM_FORMAT, 0);
}
+ /* The audio hardware sends a channel count of 0x7 (8ch) when all the
+ * streams are disabled. */
+ nvhdmi_8ch_7x_set_info_frame_parameters(codec, 8);
+
return snd_hda_multi_out_dig_close(codec, &spec->multiout);
}
struct snd_pcm_substream *substream)
{
int chs;
- unsigned int dataDCC1, dataDCC2, chan, chanmask, channel_id;
+ unsigned int dataDCC1, dataDCC2, channel_id;
int i;
mutex_lock(&codec->spdif_mutex);
chs = substream->runtime->channels;
- chan = chs ? (chs - 1) : 1;
- switch (chs) {
- default:
- case 0:
- case 2:
- chanmask = 0x00;
- break;
- case 4:
- chanmask = 0x08;
- break;
- case 6:
- chanmask = 0x0b;
- break;
- case 8:
- chanmask = 0x13;
- break;
- }
dataDCC1 = AC_DIG1_ENABLE | AC_DIG1_COPYRIGHT;
dataDCC2 = 0x2;
- /* set the Audio InforFrame Channel Allocation */
- snd_hda_codec_write(codec, 0x1, 0,
- Nv_VERB_SET_Channel_Allocation, chanmask);
-
/* turn off SPDIF once; otherwise the IEC958 bits won't be updated */
if (codec->spdif_status_reset && (codec->spdif_ctls & AC_DIG1_ENABLE))
snd_hda_codec_write(codec,
}
}
- /* set the Audio Info Frame Checksum */
- snd_hda_codec_write(codec, 0x1, 0,
- Nv_VERB_SET_Info_Frame_Checksum,
- (0x71 - chan - chanmask));
+ nvhdmi_8ch_7x_set_info_frame_parameters(codec, chs);
mutex_unlock(&codec->spdif_mutex);
return 0;
spec->multiout.max_channels = 8;
spec->pcm_playback = &nvhdmi_pcm_playback_8ch_7x;
codec->patch_ops = nvhdmi_patch_ops_8ch_7x;
+
+ /* Initialize the audio infoframe channel mask and checksum to something
+ * valid */
+ nvhdmi_8ch_7x_set_info_frame_parameters(codec, 8);
+
return 0;
}
};
static hda_nid_t alc269_adc_candidates[] = {
- 0x08, 0x09, 0x07,
+ 0x08, 0x09, 0x07, 0x11,
};
#define alc269_modes alc260_modes
hda_nid_t conn[HDA_MAX_NUM_INPUTS];
int i, nums;
+ if (!(get_wcaps(codec, mux) & AC_WCAP_CONN_LIST))
+ return -1;
+
nums = snd_hda_get_connections(codec, mux, conn, ARRAY_SIZE(conn));
for (i = 0; i < nums; i++)
if (conn[i] == nid)
if (prtd->dma_ch >= 0) {
pxa_free_dma(prtd->dma_ch);
prtd->dma_ch = -1;
+ prtd->params = NULL;
}
return 0;
.codec_name = "wm9713-codec",
.platform_name = "pxa-pcm-audio",
.cpu_dai_name = "pxa2xx-ac97",
- .codec_name = "wm9713-hifi",
+ .codec_dai_name = "wm9713-hifi",
.init = zylonite_wm9713_init,
},
{
.codec_name = "wm9713-codec",
.platform_name = "pxa-pcm-audio",
.cpu_dai_name = "pxa2xx-ac97-aux",
- .codec_name = "wm9713-aux",
+ .codec_dai_name = "wm9713-aux",
},
{
.name = "WM9713 Voice",
.codec_name = "wm9713-codec",
.platform_name = "pxa-pcm-audio",
.cpu_dai_name = "pxa-ssp-dai.2",
- .codec_name = "wm9713-voice",
+ .codec_dai_name = "wm9713-voice",
.ops = &zylonite_voice_ops,
},
};
static int format_register_str(struct snd_soc_codec *codec,
unsigned int reg, char *buf, size_t len)
{
- int wordsize = codec->driver->reg_word_size * 2;
- int regsize = min_bytes_needed(codec->driver->reg_cache_size) * 2;
+ int wordsize = min_bytes_needed(codec->driver->reg_cache_size) * 2;
+ int regsize = codec->driver->reg_word_size * 2;
int ret;
char tmpbuf[len + 1];
char regbuf[regsize + 1];
size_t total = 0;
loff_t p = 0;
- wordsize = codec->driver->reg_word_size * 2;
- regsize = min_bytes_needed(codec->driver->reg_cache_size) * 2;
+ wordsize = min_bytes_needed(codec->driver->reg_cache_size) * 2;
+ regsize = codec->driver->reg_word_size * 2;
len = wordsize + regsize + 2 + 1;
case USB_ID(0x15ca, 0x0101): /* Textech USB Midi Cable */
case USB_ID(0x15ca, 0x1806): /* Textech USB Midi Cable */
case USB_ID(0x1a86, 0x752d): /* QinHeng CH345 "USB2.0-MIDI" */
+ case USB_ID(0xfc08, 0x0101): /* Unknown vendor Cable */
ep->max_transfer = 4;
break;
/*
struct perf_event_attr *attr = &evsel->attr;
int track = !evsel->idx; /* only the first counter needs these */
+ attr->inherit = !no_inherit;
attr->read_format = PERF_FORMAT_TOTAL_TIME_ENABLED |
PERF_FORMAT_TOTAL_TIME_RUNNING |
PERF_FORMAT_ID;
{
struct perf_evsel *pos;
+ if (evlist->cpus->map[0] < 0)
+ no_inherit = true;
+
list_for_each_entry(pos, &evlist->entries, node) {
struct perf_event_attr *attr = &pos->attr;
/*
retry_sample_id:
attr->sample_id_all = sample_id_all_avail ? 1 : 0;
try_again:
- if (perf_evsel__open(pos, evlist->cpus, evlist->threads, group,
- !no_inherit) < 0) {
+ if (perf_evsel__open(pos, evlist->cpus, evlist->threads, group) < 0) {
int err = errno;
if (err == EPERM || err == EACCES) {
attr->read_format = PERF_FORMAT_TOTAL_TIME_ENABLED |
PERF_FORMAT_TOTAL_TIME_RUNNING;
+ attr->inherit = !no_inherit;
+
if (system_wide)
- return perf_evsel__open_per_cpu(evsel, evsel_list->cpus, false, false);
+ return perf_evsel__open_per_cpu(evsel, evsel_list->cpus, false);
- attr->inherit = !no_inherit;
if (target_pid == -1 && target_tid == -1) {
attr->disabled = 1;
attr->enable_on_exec = 1;
}
- return perf_evsel__open_per_thread(evsel, evsel_list->threads, false, false);
+ return perf_evsel__open_per_thread(evsel, evsel_list->threads, false);
}
/*
goto out_thread_map_delete;
}
- if (perf_evsel__open_per_thread(evsel, threads, false, false) < 0) {
+ if (perf_evsel__open_per_thread(evsel, threads, false) < 0) {
pr_debug("failed to open counter: %s, "
"tweak /proc/sys/kernel/perf_event_paranoid?\n",
strerror(errno));
}
if (perf_evsel__read_on_cpu(evsel, 0, 0) < 0) {
- pr_debug("perf_evsel__open_read_on_cpu\n");
+ pr_debug("perf_evsel__read_on_cpu\n");
goto out_close_fd;
}
goto out_thread_map_delete;
}
- if (perf_evsel__open(evsel, cpus, threads, false, false) < 0) {
+ if (perf_evsel__open(evsel, cpus, threads, false) < 0) {
pr_debug("failed to open counter: %s, "
"tweak /proc/sys/kernel/perf_event_paranoid?\n",
strerror(errno));
continue;
if (perf_evsel__read_on_cpu(evsel, cpu, 0) < 0) {
- pr_debug("perf_evsel__open_read_on_cpu\n");
+ pr_debug("perf_evsel__read_on_cpu\n");
err = -1;
break;
}
perf_evlist__add(evlist, evsels[i]);
- if (perf_evsel__open(evsels[i], cpus, threads, false, false) < 0) {
+ if (perf_evsel__open(evsels[i], cpus, threads, false) < 0) {
pr_debug("failed to open counter: %s, "
"tweak /proc/sys/kernel/perf_event_paranoid?\n",
strerror(errno));
}
attr->mmap = 1;
+ attr->inherit = inherit;
try_again:
if (perf_evsel__open(counter, top.evlist->cpus,
- top.evlist->threads, group, inherit) < 0) {
+ top.evlist->threads, group) < 0) {
int err = errno;
if (err == EPERM || err == EACCES) {
{
FILE *fp;
char mountpoint[MAX_PATH+1], tokens[MAX_PATH+1], type[MAX_PATH+1];
- char *token, *saved_ptr;
+ char *token, *saved_ptr = NULL;
int found = 0;
fp = fopen("/proc/mounts", "r");
#include "evlist.h"
#include "evsel.h"
#include "util.h"
+#include "debug.h"
#include <sys/mman.h>
return evlist->mmap != NULL ? 0 : -ENOMEM;
}
-static int __perf_evlist__mmap(struct perf_evlist *evlist, int cpu, int prot,
- int mask, int fd)
+static int __perf_evlist__mmap(struct perf_evlist *evlist, struct perf_evsel *evsel,
+ int cpu, int prot, int mask, int fd)
{
evlist->mmap[cpu].prev = 0;
evlist->mmap[cpu].mask = mask;
evlist->mmap[cpu].base = mmap(NULL, evlist->mmap_len, prot,
MAP_SHARED, fd, 0);
- if (evlist->mmap[cpu].base == MAP_FAILED)
+ if (evlist->mmap[cpu].base == MAP_FAILED) {
+ if (evlist->cpus->map[cpu] == -1 && evsel->attr.inherit)
+ ui__warning("Inherit is not allowed on per-task "
+ "events using mmap.\n");
return -1;
+ }
perf_evlist__add_pollfd(evlist, fd);
return 0;
if (ioctl(fd, PERF_EVENT_IOC_SET_OUTPUT,
FD(first_evsel, cpu, 0)) != 0)
goto out_unmap;
- } else if (__perf_evlist__mmap(evlist, cpu, prot, mask, fd) < 0)
+ } else if (__perf_evlist__mmap(evlist, evsel, cpu,
+ prot, mask, fd) < 0)
goto out_unmap;
if ((evsel->attr.read_format & PERF_FORMAT_ID) &&
}
static int __perf_evsel__open(struct perf_evsel *evsel, struct cpu_map *cpus,
- struct thread_map *threads, bool group, bool inherit)
+ struct thread_map *threads, bool group)
{
int cpu, thread;
unsigned long flags = 0;
for (cpu = 0; cpu < cpus->nr; cpu++) {
int group_fd = -1;
- /*
- * Don't allow mmap() of inherited per-task counters. This
- * would create a performance issue due to all children writing
- * to the same buffer.
- *
- * FIXME:
- * Proper fix is not to pass 'inherit' to perf_evsel__open*,
- * but a 'flags' parameter, with 'group' folded there as well,
- * then introduce a PERF_O_{MMAP,GROUP,INHERIT} enum, and if
- * O_MMAP is set, emit a warning if cpu < 0 and O_INHERIT is
- * set. Lets go for the minimal fix first tho.
- */
- evsel->attr.inherit = (cpus->map[cpu] >= 0) && inherit;
for (thread = 0; thread < threads->nr; thread++) {
};
int perf_evsel__open(struct perf_evsel *evsel, struct cpu_map *cpus,
- struct thread_map *threads, bool group, bool inherit)
+ struct thread_map *threads, bool group)
{
if (cpus == NULL) {
/* Work around old compiler warnings about strict aliasing */
if (threads == NULL)
threads = &empty_thread_map.map;
- return __perf_evsel__open(evsel, cpus, threads, group, inherit);
+ return __perf_evsel__open(evsel, cpus, threads, group);
}
int perf_evsel__open_per_cpu(struct perf_evsel *evsel,
- struct cpu_map *cpus, bool group, bool inherit)
+ struct cpu_map *cpus, bool group)
{
- return __perf_evsel__open(evsel, cpus, &empty_thread_map.map, group, inherit);
+ return __perf_evsel__open(evsel, cpus, &empty_thread_map.map, group);
}
int perf_evsel__open_per_thread(struct perf_evsel *evsel,
- struct thread_map *threads, bool group, bool inherit)
+ struct thread_map *threads, bool group)
{
- return __perf_evsel__open(evsel, &empty_cpu_map.map, threads, group, inherit);
+ return __perf_evsel__open(evsel, &empty_cpu_map.map, threads, group);
}
static int perf_event__parse_id_sample(const union perf_event *event, u64 type,
void perf_evsel__close_fd(struct perf_evsel *evsel, int ncpus, int nthreads);
int perf_evsel__open_per_cpu(struct perf_evsel *evsel,
- struct cpu_map *cpus, bool group, bool inherit);
+ struct cpu_map *cpus, bool group);
int perf_evsel__open_per_thread(struct perf_evsel *evsel,
- struct thread_map *threads, bool group, bool inherit);
+ struct thread_map *threads, bool group);
int perf_evsel__open(struct perf_evsel *evsel, struct cpu_map *cpus,
- struct thread_map *threads, bool group, bool inherit);
+ struct thread_map *threads, bool group);
#define perf_evsel__match(evsel, t, c) \
(evsel->attr.type == PERF_TYPE_##t && \
struct cpu_map *cpus = NULL;
struct thread_map *threads = NULL;
PyObject *pcpus = NULL, *pthreads = NULL;
- int group = 0, overwrite = 0;
- static char *kwlist[] = {"cpus", "threads", "group", "overwrite", NULL, NULL};
+ int group = 0, inherit = 0;
+ static char *kwlist[] = {"cpus", "threads", "group", "inherit", NULL, NULL};
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|OOii", kwlist,
- &pcpus, &pthreads, &group, &overwrite))
+ &pcpus, &pthreads, &group, &inherit))
return NULL;
if (pthreads != NULL)
if (pcpus != NULL)
cpus = ((struct pyrf_cpu_map *)pcpus)->cpus;
- if (perf_evsel__open(evsel, cpus, threads, group, overwrite) < 0) {
+ evsel->attr.inherit = inherit;
+ if (perf_evsel__open(evsel, cpus, threads, group) < 0) {
PyErr_SetFromErrno(PyExc_OSError);
return NULL;
}
int refresh)
{
struct objdump_line *pos, *n;
- struct annotation *notes = symbol__annotation(sym);
+ struct annotation *notes;
struct annotate_browser browser = {
.b = {
- .entries = ¬es->src->source,
.refresh = ui_browser__list_head_refresh,
.seek = ui_browser__list_head_seek,
.write = annotate_browser__write,
ui_helpline__push("Press <- or ESC to exit");
+ notes = symbol__annotation(sym);
+
list_for_each_entry(pos, ¬es->src->source, node) {
struct objdump_line_rb_node *rbpos;
size_t line_len = strlen(pos->line);
rbpos->idx = browser.b.nr_entries++;
}
+ browser.b.entries = ¬es->src->source,
browser.b.width += 18; /* Percentage */
ret = annotate_browser__run(&browser, evidx, refresh);
list_for_each_entry_safe(pos, n, ¬es->src->source, node) {
goto out_free_stack;
case 'a':
if (browser->selection == NULL ||
- browser->selection->map == NULL ||
+ browser->selection->sym == NULL ||
browser->selection->map->dso->annotate_warned)
continue;
goto do_annotate;
projects / karo-tx-linux.git / commitdiff