1 files changed, 22 insertions, 18 deletions

diff --git a/include/linux/fs.h b/include/linux/fs.h
index 39d57bc6cc71..b336cb9ca9a0 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -651,6 +651,7 @@ struct block_device {
         int                     bd_openers;
         struct mutex            bd_mutex;       /* open/close mutex */
         struct list_head        bd_inodes;
+        void *                  bd_claiming;
         void *                  bd_holder;
         int                     bd_holders;
 #ifdef CONFIG_SYSFS
@@ -1280,10 +1281,12 @@ static inline int lock_may_write(struct inode *inode, loff_t start,
 
 
 struct fasync_struct {
-        int     magic;
-        int     fa_fd;
-        struct  fasync_struct   *fa_next; /* singly linked list */
-        struct  file            *fa_file;
+        spinlock_t              fa_lock;
+        int                     magic;
+        int                     fa_fd;
+        struct fasync_struct    *fa_next; /* singly linked list */
+        struct file             *fa_file;
+        struct rcu_head         fa_rcu;
 };
 
 #define FASYNC_MAGIC 0x4601
@@ -1292,8 +1295,6 @@ struct fasync_struct {
 extern int fasync_helper(int, struct file *, int, struct fasync_struct **);
 /* can be called from interrupts */
 extern void kill_fasync(struct fasync_struct **, int, int);
-/* only for net: no internal synchronization */
-extern void __kill_fasync(struct fasync_struct *, int, int);
 
 extern int __f_setown(struct file *filp, struct pid *, enum pid_type, int force);
 extern int f_setown(struct file *filp, unsigned long arg, int force);
@@ -1314,8 +1315,6 @@ extern int send_sigurg(struct fown_struct *fown);
 extern struct list_head super_blocks;
 extern spinlock_t sb_lock;
 
-#define sb_entry(list)  list_entry((list), struct super_block, s_list)
-#define S_BIAS (1<<30)
 struct super_block {
         struct list_head        s_list;         /* Keep this first */
         dev_t                   s_dev;          /* search index; _not_ kdev_t */
@@ -1334,12 +1333,11 @@ struct super_block {
         struct rw_semaphore     s_umount;
         struct mutex            s_lock;
         int                     s_count;
-        int                     s_need_sync;
         atomic_t                s_active;
 #ifdef CONFIG_SECURITY
         void                    *s_security;
 #endif
-        struct xattr_handler    **s_xattr;
+        const struct xattr_handler **s_xattr;
 
         struct list_head        s_inodes;       /* all inodes */
         struct hlist_head       s_anon;         /* anonymous dentries for (nfs) exporting */
@@ -1431,7 +1429,8 @@ extern void dentry_unhash(struct dentry *dentry);
  * VFS file helper functions.
  */
 extern int file_permission(struct file *, int);
-
+extern void inode_init_owner(struct inode *inode, const struct inode *dir,
+                        mode_t mode);
 /*
  * VFS FS_IOC_FIEMAP helper definitions.
  */
@@ -1744,6 +1743,7 @@ struct file_system_type {
 
         struct lock_class_key s_lock_key;
         struct lock_class_key s_umount_key;
+        struct lock_class_key s_vfs_rename_key;
 
         struct lock_class_key i_lock_key;
         struct lock_class_key i_mutex_key;
@@ -1781,8 +1781,6 @@ extern int get_sb_pseudo(struct file_system_type *, char *,
         const struct super_operations *ops, unsigned long,
         struct vfsmount *mnt);
 extern void simple_set_mnt(struct vfsmount *mnt, struct super_block *sb);
-int __put_super_and_need_restart(struct super_block *sb);
-void put_super(struct super_block *sb);
 
 /* Alas, no aliases. Too much hassle with bringing module.h everywhere */
 #define fops_get(fops) \
@@ -1802,6 +1800,8 @@ extern void drop_collected_mounts(struct vfsmount *);
 extern int iterate_mounts(int (*)(struct vfsmount *, void *), void *,
                           struct vfsmount *);
 extern int vfs_statfs(struct dentry *, struct kstatfs *);
+extern int freeze_super(struct super_block *super);
+extern int thaw_super(struct super_block *super);
 
 extern int current_umask(void);
 
@@ -2087,9 +2087,9 @@ extern int __filemap_fdatawrite_range(struct address_space *mapping,
 extern int filemap_fdatawrite_range(struct address_space *mapping,
                                 loff_t start, loff_t end);
 
-extern int vfs_fsync_range(struct file *file, struct dentry *dentry,
-                           loff_t start, loff_t end, int datasync);
-extern int vfs_fsync(struct file *file, struct dentry *dentry, int datasync);
+extern int vfs_fsync_range(struct file *file, loff_t start, loff_t end,
+                           int datasync);
+extern int vfs_fsync(struct file *file, int datasync);
 extern int generic_write_sync(struct file *file, loff_t pos, loff_t count);
 extern void sync_supers(void);
 extern void emergency_sync(void);
@@ -2315,8 +2315,9 @@ extern int vfs_fstatat(int , char __user *, struct kstat *, int);
 extern int do_vfs_ioctl(struct file *filp, unsigned int fd, unsigned int cmd,
                     unsigned long arg);
 extern int __generic_block_fiemap(struct inode *inode,
-                                  struct fiemap_extent_info *fieinfo, u64 start,
-                                  u64 len, get_block_t *get_block);
+                                  struct fiemap_extent_info *fieinfo,
+                                  loff_t start, loff_t len,
+                                  get_block_t *get_block);
 extern int generic_block_fiemap(struct inode *inode,
                                 struct fiemap_extent_info *fieinfo, u64 start,
                                 u64 len, get_block_t *get_block);
@@ -2328,6 +2329,7 @@ extern struct super_block *get_super(struct block_device *);
 extern struct super_block *get_active_super(struct block_device *bdev);
 extern struct super_block *user_get_super(dev_t);
 extern void drop_super(struct super_block *sb);
+extern void iterate_supers(void (*)(struct super_block *, void *), void *);
 
 extern int dcache_dir_open(struct inode *, struct file *);
 extern int dcache_dir_close(struct inode *, struct file *);
@@ -2361,6 +2363,8 @@ extern void simple_release_fs(struct vfsmount **mount, int *count);
 
 extern ssize_t simple_read_from_buffer(void __user *to, size_t count,
                         loff_t *ppos, const void *from, size_t available);
+extern ssize_t simple_write_to_buffer(void *to, size_t available, loff_t *ppos,
+                const void __user *from, size_t count);
 
 extern int simple_fsync(struct file *, struct dentry *, int);