#define RX_BUF_SIZE (25*1024)
#define TX_HZ 2000
- #define TX_INTERVAL (1000000/TX_HZ)
+ #define TX_INTERVAL (NSEC_PER_SEC/TX_HZ)
static struct sdio_tx *alloc_tx_struct(struct tx_cxt *tx)
{
spin_lock_init(&tx->lock);
tx->sdu_buf = kmalloc(SDU_TX_BUF_SIZE, GFP_KERNEL);
- if (tx->sdu_buf == NULL)
+ if (!tx->sdu_buf)
goto fail;
for (i = 0; i < MAX_NR_SDU_BUF; i++) {
t = alloc_tx_struct(tx);
- if (t == NULL) {
+ if (!t) {
ret = -ENOMEM;
goto fail;
}
for (i = 0; i < MAX_NR_RX_BUF; i++) {
r = alloc_rx_struct(rx);
- if (r == NULL) {
+ if (!r) {
ret = -ENOMEM;
goto fail;
}
}
rx->rx_buf = kmalloc(RX_BUF_SIZE, GFP_KERNEL);
- if (rx->rx_buf == NULL)
+ if (!rx->rx_buf)
goto fail;
return 0;
put_tx_struct(t->tx_cxt, t);
}
- do_gettimeofday(&tx->sdu_stamp);
+ tx->sdu_stamp = ktime_get();
spin_unlock_irqrestore(&tx->lock, flags);
}
struct sdio_func *func = sdev->func;
struct tx_cxt *tx = &sdev->tx;
struct sdio_tx *t = NULL;
- struct timeval now, *before;
+ ktime_t now, before;
int is_sdu = 0;
long diff;
unsigned long flags;
list_del(&t->list);
is_sdu = 0;
} else if (!tx->stop_sdu_tx && !list_empty(&tx->sdu_list)) {
- do_gettimeofday(&now);
- before = &tx->sdu_stamp;
+ now = ktime_get();
+ before = tx->sdu_stamp;
- diff = (now.tv_sec - before->tv_sec) * 1000000 +
- (now.tv_usec - before->tv_usec);
+ diff = ktime_to_ns(ktime_sub(now, before));
if (diff >= 0 && diff < TX_INTERVAL) {
schedule_work(&sdev->ws);
spin_unlock_irqrestore(&tx->lock, flags);
is_sdu = 1;
}
- if (!is_sdu && t == NULL) {
+ if (!is_sdu && !t) {
spin_unlock_irqrestore(&tx->lock, flags);
return;
}
cmd_evt = (pkt[0] << 8) | pkt[1];
if (cmd_evt == WIMAX_TX_SDU) {
t = get_tx_struct(tx, &no_spc);
- if (t == NULL) {
+ if (!t) {
/* This case must not happen. */
spin_unlock_irqrestore(&tx->lock, flags);
return -ENOSPC;
t->cb_data = cb_data;
} else {
t = alloc_tx_struct(tx);
- if (t == NULL) {
+ if (!t) {
spin_unlock_irqrestore(&tx->lock, flags);
return -ENOMEM;
}
spin_lock_irqsave(&rx->lock, flags);
r = get_rx_struct(rx);
- if (r == NULL) {
+ if (!r) {
spin_unlock_irqrestore(&rx->lock, flags);
return -ENOMEM;
}
return ret;
phy_dev = kzalloc(sizeof(*phy_dev), GFP_KERNEL);
- if (phy_dev == NULL) {
+ if (!phy_dev) {
ret = -ENOMEM;
goto out;
}
sdev = kzalloc(sizeof(*sdev), GFP_KERNEL);
- if (sdev == NULL) {
+ if (!sdev) {
ret = -ENOMEM;
goto out;
}
#include <linux/slab.h>
#include <linux/uaccess.h>
#include <linux/usb.h>
+ #include <linux/ktime.h>
#include <media/lirc.h>
#include <media/lirc_dev.h>
} tx;
/* for dealing with repeat codes (wish there was a toggle bit!) */
- struct timeval presstime;
+ ktime_t presstime;
char lastcode[8];
int codesaved;
};
if (retval)
dev_err(&context->dev->dev,
"%s: unable to deregister from lirc (%d)\n",
- __func__, retval);
+ __func__, retval);
else
dev_info(&context->dev->dev,
"Deregistered Sasem driver (minor:%d)\n", minor);
*/
static long vfd_ioctl(struct file *file, unsigned cmd, unsigned long arg)
{
- struct sasem_context *context = NULL;
+ struct sasem_context *context;
context = (struct sasem_context *) file->private_data;
{
int len = urb->actual_length;
unsigned char *buf = urb->transfer_buffer;
- long ms;
- struct timeval tv;
+ u64 ns;
+ ktime_t kt;
if (len != 8) {
dev_warn(&context->dev->dev,
*/
/* get the time since the last button press */
- do_gettimeofday(&tv);
- ms = (tv.tv_sec - context->presstime.tv_sec) * 1000 +
- (tv.tv_usec - context->presstime.tv_usec) / 1000;
+ kt = ktime_get();
+ ns = ktime_to_ns(ktime_sub(kt, context->presstime));
if (memcmp(buf, "\x08\0\0\0\0\0\0\0", 8) == 0) {
/*
* in that time and then get a false repeat of the previous
* press but it is long enough for a genuine repeat
*/
- if ((ms < 250) && (context->codesaved != 0)) {
+ if ((ns < 250 * NSEC_PER_MSEC) && (context->codesaved != 0)) {
memcpy(buf, &context->lastcode, 8);
- context->presstime.tv_sec = tv.tv_sec;
- context->presstime.tv_usec = tv.tv_usec;
+ context->presstime = kt;
}
} else {
/* save the current valid code for repeats */
* just for safety reasons
*/
context->codesaved = 1;
- context->presstime.tv_sec = tv.tv_sec;
- context->presstime.tv_usec = tv.tv_usec;
+ context->presstime = kt;
}
lirc_buffer_write(context->driver->rbuf, buf);
for (i = 0; i < num_endpoints && !(ir_ep_found && vfd_ep_found); ++i) {
struct usb_endpoint_descriptor *ep;
- int ep_dir;
- int ep_type;
ep = &iface_desc->endpoint [i].desc;
- ep_dir = ep->bEndpointAddress & USB_ENDPOINT_DIR_MASK;
- ep_type = ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK;
if (!ir_ep_found &&
- ep_dir == USB_DIR_IN &&
- ep_type == USB_ENDPOINT_XFER_INT) {
+ usb_endpoint_is_int_in(ep)) {
rx_endpoint = ep;
ir_ep_found = 1;
"%s: found IR endpoint\n", __func__);
} else if (!vfd_ep_found &&
- ep_dir == USB_DIR_OUT &&
- ep_type == USB_ENDPOINT_XFER_INT) {
+ usb_endpoint_is_int_out(ep)) {
tx_endpoint = ep;
vfd_ep_found = 1;
#include <linux/ioport.h>
#include <linux/kernel.h>
#include <linux/serial_reg.h>
- #include <linux/time.h>
+ #include <linux/ktime.h>
#include <linux/string.h>
#include <linux/types.h>
#include <linux/wait.h>
static int ioshift;
static bool softcarrier = true;
static bool share_irq;
-static bool debug;
static int sense = -1; /* -1 = auto, 0 = active high, 1 = active low */
static bool txsense; /* 0 = active high, 1 = active low */
-#define dprintk(fmt, args...) \
- do { \
- if (debug) \
- printk(KERN_DEBUG LIRC_DRIVER_NAME ": " \
- fmt, ## args); \
- } while (0)
-
/* forward declarations */
static long send_pulse_irdeo(unsigned long length);
static long send_pulse_homebrew(unsigned long length);
#define RBUF_LEN 256
- static struct timeval lasttv = {0, 0};
+ static ktime_t lastkt;
static struct lirc_buffer rbuf;
/* Derive pulse and space from the period */
pulse_width = period * duty_cycle / 100;
space_width = period - pulse_width;
- dprintk("in init_timing_params, freq=%d, duty_cycle=%d, "
- "clk/jiffy=%ld, pulse=%ld, space=%ld\n",
- freq, duty_cycle, __this_cpu_read(cpu_info.loops_per_jiffy),
- pulse_width, space_width);
+ pr_debug("in init_timing_params, freq=%d, duty_cycle=%d, clk/jiffy=%ld, pulse=%ld, space=%ld, conv_us_to_clocks=%ld\n",
+ freq, duty_cycle, __this_cpu_read(cpu_info.loops_per_jiffy),
+ pulse_width, space_width, conv_us_to_clocks);
return 0;
}
#else /* ! USE_RDTSC */
period = 256 * 1000000L / freq;
pulse_width = period * duty_cycle / 100;
space_width = period - pulse_width;
- dprintk("in init_timing_params, freq=%d pulse=%ld, space=%ld\n",
- freq, pulse_width, space_width);
+ pr_debug("in init_timing_params, freq=%d pulse=%ld, space=%ld\n",
+ freq, pulse_width, space_width);
return 0;
}
#endif /* USE_RDTSC */
{
if (lirc_buffer_full(&rbuf)) {
/* no new signals will be accepted */
- dprintk("Buffer overrun\n");
+ pr_debug("Buffer overrun\n");
return;
}
lirc_buffer_write(&rbuf, (void *)&l);
static irqreturn_t lirc_irq_handler(int i, void *blah)
{
- struct timeval tv;
+ ktime_t kt;
int counter, dcd;
u8 status;
- long deltv;
+ ktime_t delkt;
int data;
static int last_dcd = -1;
if ((status & hardware[type].signal_pin_change)
&& sense != -1) {
/* get current time */
- do_gettimeofday(&tv);
+ kt = ktime_get();
/* New mode, written by Trent Piepho
<xyzzy@u.washington.edu>. */
dcd = (status & hardware[type].signal_pin) ? 1 : 0;
if (dcd == last_dcd) {
- pr_warn("ignoring spike: %d %d %lx %lx %lx %lx\n",
- dcd, sense,
- tv.tv_sec, lasttv.tv_sec,
- (unsigned long)tv.tv_usec,
- (unsigned long)lasttv.tv_usec);
+ pr_warn("ignoring spike: %d %d %llx %llx\n",
+ dcd, sense, ktime_to_us(kt),
+ ktime_to_us(lastkt));
continue;
}
- deltv = tv.tv_sec-lasttv.tv_sec;
- if (tv.tv_sec < lasttv.tv_sec ||
- (tv.tv_sec == lasttv.tv_sec &&
- tv.tv_usec < lasttv.tv_usec)) {
- pr_warn("AIEEEE: your clock just jumped backwards\n");
- pr_warn("%d %d %lx %lx %lx %lx\n",
- dcd, sense,
- tv.tv_sec, lasttv.tv_sec,
- (unsigned long)tv.tv_usec,
- (unsigned long)lasttv.tv_usec);
- data = PULSE_MASK;
- } else if (deltv > 15) {
+ delkt = ktime_sub(kt, lastkt);
+ if (ktime_compare(delkt, ktime_set(15, 0)) > 0) {
data = PULSE_MASK; /* really long time */
if (!(dcd^sense)) {
/* sanity check */
- pr_warn("AIEEEE: %d %d %lx %lx %lx %lx\n",
- dcd, sense,
- tv.tv_sec, lasttv.tv_sec,
- (unsigned long)tv.tv_usec,
- (unsigned long)lasttv.tv_usec);
+ pr_warn("AIEEEE: %d %d %llx %llx\n",
+ dcd, sense, ktime_to_us(kt),
+ ktime_to_us(lastkt));
/*
* detecting pulse while this
* MUST be a space!
sense = sense ? 0 : 1;
}
} else
- data = (int) (deltv*1000000 +
- tv.tv_usec -
- lasttv.tv_usec);
+ data = (int) ktime_to_us(delkt);
frbwrite(dcd^sense ? data : (data|PULSE_BIT));
- lasttv = tv;
+ lastkt = kt;
last_dcd = dcd;
wake_up_interruptible(&rbuf.wait_poll);
}
dev_info(&dev->dev, "Manually using active %s receiver\n",
sense ? "low" : "high");
- dprintk("Interrupt %d, port %04x obtained\n", irq, io);
+ dev_dbg(&dev->dev, "Interrupt %d, port %04x obtained\n", irq, io);
return 0;
}
unsigned long flags;
/* initialize timestamp */
- do_gettimeofday(&lasttv);
+ lastkt = ktime_get();
spin_lock_irqsave(&hardware[type].lock, flags);
return -ENOIOCTLCMD;
case LIRC_SET_SEND_DUTY_CYCLE:
- dprintk("SET_SEND_DUTY_CYCLE\n");
+ pr_debug("SET_SEND_DUTY_CYCLE\n");
if (!(hardware[type].features&LIRC_CAN_SET_SEND_DUTY_CYCLE))
return -ENOIOCTLCMD;
return init_timing_params(value, freq);
case LIRC_SET_SEND_CARRIER:
- dprintk("SET_SEND_CARRIER\n");
+ pr_debug("SET_SEND_CARRIER\n");
if (!(hardware[type].features&LIRC_CAN_SET_SEND_CARRIER))
return -ENOIOCTLCMD;
spin_lock_irqsave(&hardware[type].lock, flags);
/* Enable Interrupt */
- do_gettimeofday(&lasttv);
+ lastkt = ktime_get();
soutp(UART_IER, sinp(UART_IER)|UART_IER_MSI);
off();
{
lirc_unregister_driver(driver.minor);
lirc_serial_exit();
- dprintk("cleaned up module\n");
+ pr_debug("cleaned up module\n");
}
module_param(softcarrier, bool, S_IRUGO);
MODULE_PARM_DESC(softcarrier, "Software carrier (0 = off, 1 = on, default on)");
-
-module_param(debug, bool, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(debug, "Enable debugging messages");
#include <linux/stat.h>
#include <linux/string.h>
#include <linux/time.h>
+ #include <linux/time64.h>
#include <linux/backing-dev.h>
#include <linux/sort.h>
struct fmeter {
int cnt; /* unprocessed events count */
int val; /* most recent output value */
- time_t time; /* clock (secs) when val computed */
+ time64_t time; /* clock (secs) when val computed */
spinlock_t lock; /* guards read or write of above */
};
/* On legacy hiearchy, we must be a subset of our parent cpuset. */
ret = -EACCES;
- if (!cgroup_on_dfl(cur->css.cgroup) && !is_cpuset_subset(trial, par))
+ if (!cgroup_subsys_on_dfl(cpuset_cgrp_subsys) &&
+ !is_cpuset_subset(trial, par))
goto out;
/*
* be changed to have empty cpus_allowed or mems_allowed.
*/
ret = -ENOSPC;
- if ((cgroup_has_tasks(cur->css.cgroup) || cur->attach_in_progress)) {
+ if ((cgroup_is_populated(cur->css.cgroup) || cur->attach_in_progress)) {
if (!cpumask_empty(cur->cpus_allowed) &&
cpumask_empty(trial->cpus_allowed))
goto out;
* If it becomes empty, inherit the effective mask of the
* parent, which is guaranteed to have some CPUs.
*/
- if (cgroup_on_dfl(cp->css.cgroup) && cpumask_empty(new_cpus))
+ if (cgroup_subsys_on_dfl(cpuset_cgrp_subsys) &&
+ cpumask_empty(new_cpus))
cpumask_copy(new_cpus, parent->effective_cpus);
/* Skip the whole subtree if the cpumask remains the same. */
cpumask_copy(cp->effective_cpus, new_cpus);
spin_unlock_irq(&callback_lock);
- WARN_ON(!cgroup_on_dfl(cp->css.cgroup) &&
+ WARN_ON(!cgroup_subsys_on_dfl(cpuset_cgrp_subsys) &&
!cpumask_equal(cp->cpus_allowed, cp->effective_cpus));
update_tasks_cpumask(cp);
* If it becomes empty, inherit the effective mask of the
* parent, which is guaranteed to have some MEMs.
*/
- if (cgroup_on_dfl(cp->css.cgroup) && nodes_empty(*new_mems))
+ if (cgroup_subsys_on_dfl(cpuset_cgrp_subsys) &&
+ nodes_empty(*new_mems))
*new_mems = parent->effective_mems;
/* Skip the whole subtree if the nodemask remains the same. */
cp->effective_mems = *new_mems;
spin_unlock_irq(&callback_lock);
- WARN_ON(!cgroup_on_dfl(cp->css.cgroup) &&
+ WARN_ON(!cgroup_subsys_on_dfl(cpuset_cgrp_subsys) &&
!nodes_equal(cp->mems_allowed, cp->effective_mems));
update_tasks_nodemask(cp);
*/
#define FM_COEF 933 /* coefficient for half-life of 10 secs */
- #define FM_MAXTICKS ((time_t)99) /* useless computing more ticks than this */
+ #define FM_MAXTICKS ((u32)99) /* useless computing more ticks than this */
#define FM_MAXCNT 1000000 /* limit cnt to avoid overflow */
#define FM_SCALE 1000 /* faux fixed point scale */
/* Internal meter update - process cnt events and update value */
static void fmeter_update(struct fmeter *fmp)
{
- time_t now = get_seconds();
- time_t ticks = now - fmp->time;
+ time64_t now;
+ u32 ticks;
+
+ now = ktime_get_seconds();
+ ticks = now - fmp->time;
if (ticks == 0)
return;
/* allow moving tasks into an empty cpuset if on default hierarchy */
ret = -ENOSPC;
- if (!cgroup_on_dfl(css->cgroup) &&
+ if (!cgroup_subsys_on_dfl(cpuset_cgrp_subsys) &&
(cpumask_empty(cs->cpus_allowed) || nodes_empty(cs->mems_allowed)))
goto out_unlock;
{
/* static buf protected by cpuset_mutex */
static nodemask_t cpuset_attach_nodemask_to;
- struct mm_struct *mm;
struct task_struct *task;
- struct task_struct *leader = cgroup_taskset_first(tset);
+ struct task_struct *leader;
struct cpuset *cs = css_cs(css);
struct cpuset *oldcs = cpuset_attach_old_cs;
}
/*
- * Change mm, possibly for multiple threads in a threadgroup. This is
- * expensive and may sleep.
+ * Change mm for all threadgroup leaders. This is expensive and may
+ * sleep and should be moved outside migration path proper.
*/
cpuset_attach_nodemask_to = cs->effective_mems;
- mm = get_task_mm(leader);
- if (mm) {
- mpol_rebind_mm(mm, &cpuset_attach_nodemask_to);
-
- /*
- * old_mems_allowed is the same with mems_allowed here, except
- * if this task is being moved automatically due to hotplug.
- * In that case @mems_allowed has been updated and is empty,
- * so @old_mems_allowed is the right nodesets that we migrate
- * mm from.
- */
- if (is_memory_migrate(cs)) {
- cpuset_migrate_mm(mm, &oldcs->old_mems_allowed,
- &cpuset_attach_nodemask_to);
+ cgroup_taskset_for_each_leader(leader, tset) {
+ struct mm_struct *mm = get_task_mm(leader);
+
+ if (mm) {
+ mpol_rebind_mm(mm, &cpuset_attach_nodemask_to);
+
+ /*
+ * old_mems_allowed is the same with mems_allowed
+ * here, except if this task is being moved
+ * automatically due to hotplug. In that case
+ * @mems_allowed has been updated and is empty, so
+ * @old_mems_allowed is the right nodesets that we
+ * migrate mm from.
+ */
+ if (is_memory_migrate(cs)) {
+ cpuset_migrate_mm(mm, &oldcs->old_mems_allowed,
+ &cpuset_attach_nodemask_to);
+ }
+ mmput(mm);
}
- mmput(mm);
}
cs->old_mems_allowed = cpuset_attach_nodemask_to;
case FILE_MEMORY_PRESSURE_ENABLED:
cpuset_memory_pressure_enabled = !!val;
break;
- case FILE_MEMORY_PRESSURE:
- retval = -EACCES;
- break;
case FILE_SPREAD_PAGE:
retval = update_flag(CS_SPREAD_PAGE, cs, val);
break;
{
.name = "memory_pressure",
.read_u64 = cpuset_read_u64,
- .write_u64 = cpuset_write_u64,
- .private = FILE_MEMORY_PRESSURE,
- .mode = S_IRUGO,
},
{
cpuset_inc();
spin_lock_irq(&callback_lock);
- if (cgroup_on_dfl(cs->css.cgroup)) {
+ if (cgroup_subsys_on_dfl(cpuset_cgrp_subsys)) {
cpumask_copy(cs->effective_cpus, parent->effective_cpus);
cs->effective_mems = parent->effective_mems;
}
mutex_lock(&cpuset_mutex);
spin_lock_irq(&callback_lock);
- if (cgroup_on_dfl(root_css->cgroup)) {
+ if (cgroup_subsys_on_dfl(cpuset_cgrp_subsys)) {
cpumask_copy(top_cpuset.cpus_allowed, cpu_possible_mask);
top_cpuset.mems_allowed = node_possible_map;
} else {
cpus_updated = !cpumask_equal(&new_cpus, cs->effective_cpus);
mems_updated = !nodes_equal(new_mems, cs->effective_mems);
- if (cgroup_on_dfl(cs->css.cgroup))
+ if (cgroup_subsys_on_dfl(cpuset_cgrp_subsys))
hotplug_update_tasks(cs, &new_cpus, &new_mems,
cpus_updated, mems_updated);
else
static cpumask_t new_cpus;
static nodemask_t new_mems;
bool cpus_updated, mems_updated;
- bool on_dfl = cgroup_on_dfl(top_cpuset.css.cgroup);
+ bool on_dfl = cgroup_subsys_on_dfl(cpuset_cgrp_subsys);
mutex_lock(&cpuset_mutex);
projects / karo-tx-linux.git / commitdiff