Merge master.kernel.org:/home/rmk/linux-2.6-serial

[karo-tx-linux.git] / include / linux / fs.h

diff --git a/include/linux/fs.h b/include/linux/fs.h
index f9adf75fd9b4badc81b1e5d61df8ba211615f579..e0b77c5af9a02aadab2a1fcd2e967c92c402ce16 100644 (file)
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -9,6 +9,7 @@
 #include <linux/config.h>
 #include <linux/limits.h>
 #include <linux/ioctl.h>
+#include <linux/rcuref.h>
 
 /*
  * It's silly to have NR_OPEN bigger than NR_FILE, but you can change
@@ -69,6 +70,7 @@ extern int dir_notify_enable;
 #define READ 0
 #define WRITE 1
 #define READA 2                /* read-ahead  - don't block if no resources */
+#define SWRITE 3       /* for ll_rw_block() - wait for buffer lock */
 #define SPECIAL 4      /* For non-blockdevice requests in request queue */
 #define READ_SYNC      (READ | (1 << BIO_RW_SYNC))
 #define WRITE_SYNC     (WRITE | (1 << BIO_RW_SYNC))
@@ -281,18 +283,8 @@ struct iattr {
        struct timespec ia_atime;
        struct timespec ia_mtime;
        struct timespec ia_ctime;
-       unsigned int    ia_attr_flags;
 };
 
-/*
- * This is the inode attributes flag definitions
- */
-#define ATTR_FLAG_SYNCRONOUS   1       /* Syncronous write */
-#define ATTR_FLAG_NOATIME      2       /* Don't update atime */
-#define ATTR_FLAG_APPEND       4       /* Append-only file */
-#define ATTR_FLAG_IMMUTABLE    8       /* Immutable file */
-#define ATTR_FLAG_NODIRATIME   16      /* Don't update atime for directory */
-
 /*
  * Includes for diskquotas.
  */
@@ -594,7 +586,6 @@ struct file {
        unsigned int            f_uid, f_gid;
        struct file_ra_state    f_ra;
 
-       size_t                  f_maxcount;
        unsigned long           f_version;
        void                    *f_security;
 
@@ -607,12 +598,13 @@ struct file {
        spinlock_t              f_ep_lock;
 #endif /* #ifdef CONFIG_EPOLL */
        struct address_space    *f_mapping;
+       struct rcu_head         f_rcuhead;
 };
 extern spinlock_t files_lock;
 #define file_list_lock() spin_lock(&files_lock);
 #define file_list_unlock() spin_unlock(&files_lock);
 
-#define get_file(x)    atomic_inc(&(x)->f_count)
+#define get_file(x)    rcuref_inc(&(x)->f_count)
 #define file_count(x)  atomic_read(&(x)->f_count)
 
 #define        MAX_NON_LFS     ((1UL<<31) - 1)
@@ -993,8 +985,8 @@ struct inode_operations {
        int (*rename) (struct inode *, struct dentry *,
                        struct inode *, struct dentry *);
        int (*readlink) (struct dentry *, char __user *,int);
-       int (*follow_link) (struct dentry *, struct nameidata *);
-       void (*put_link) (struct dentry *, struct nameidata *);
+       void * (*follow_link) (struct dentry *, struct nameidata *);
+       void (*put_link) (struct dentry *, struct nameidata *, void *);
        void (*truncate) (struct inode *);
        int (*permission) (struct inode *, int, struct nameidata *);
        int (*setattr) (struct dentry *, struct iattr *);
@@ -1291,6 +1283,7 @@ static inline int break_lease(struct inode *inode, unsigned int mode)
 /* fs/open.c */
 
 extern int do_truncate(struct dentry *, loff_t start);
+extern long do_sys_open(const char __user *filename, int flags, int mode);
 extern struct file *filp_open(const char *, int, int);
 extern struct file * dentry_open(struct dentry *, struct vfsmount *, int);
 extern int filp_close(struct file *, fl_owner_t id);
@@ -1516,8 +1509,6 @@ extern void do_generic_mapping_read(struct address_space *mapping,
                                    loff_t *, read_descriptor_t *, read_actor_t);
 extern void
 file_ra_state_init(struct file_ra_state *ra, struct address_space *mapping);
-extern ssize_t generic_file_direct_IO(int rw, struct kiocb *iocb,
-       const struct iovec *iov, loff_t offset, unsigned long nr_segs);
 extern ssize_t generic_file_readv(struct file *filp, const struct iovec *iov, 
        unsigned long nr_segs, loff_t *ppos);
 ssize_t generic_file_writev(struct file *filp, const struct iovec *iov, 
@@ -1602,8 +1593,8 @@ extern struct file_operations generic_ro_fops;
 extern int vfs_readlink(struct dentry *, char __user *, int, const char *);
 extern int vfs_follow_link(struct nameidata *, const char *);
 extern int page_readlink(struct dentry *, char __user *, int);
-extern int page_follow_link_light(struct dentry *, struct nameidata *);
-extern void page_put_link(struct dentry *, struct nameidata *);
+extern void *page_follow_link_light(struct dentry *, struct nameidata *);
+extern void page_put_link(struct dentry *, struct nameidata *, void *);
 extern int page_symlink(struct inode *inode, const char *symname, int len);
 extern struct inode_operations page_symlink_inode_operations;
 extern int generic_readlink(struct dentry *, char __user *, int);