1 files changed, 187 insertions, 36 deletions

diff --git a/include/linux/fs.h b/include/linux/fs.h
index 92734c0012e6..42436ae42f70 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -141,6 +141,7 @@ struct inodes_stat_t {
 #define MS_RELATIME     (1<<21) /* Update atime relative to mtime/ctime. */
 #define MS_KERNMOUNT    (1<<22) /* this is a kern_mount call */
 #define MS_I_VERSION    (1<<23) /* Update inode I_version field */
+#define MS_STRICTATIME  (1<<24) /* Always perform atime updates */
 #define MS_ACTIVE       (1<<30)
 #define MS_NOUSER       (1<<31)
 
@@ -848,6 +849,7 @@ struct file {
 #define f_dentry        f_path.dentry
 #define f_vfsmnt        f_path.mnt
         const struct file_operations    *f_op;
+        spinlock_t              f_lock;  /* f_ep_links, f_flags */
         atomic_long_t           f_count;
         unsigned int            f_flags;
         fmode_t                 f_mode;
@@ -866,7 +868,6 @@ struct file {
 #ifdef CONFIG_EPOLL
         /* Used by fs/eventpoll.c to link all the hooks to this file */
         struct list_head        f_ep_links;
-        spinlock_t              f_ep_lock;
 #endif /* #ifdef CONFIG_EPOLL */
         struct address_space    *f_mapping;
 #ifdef CONFIG_DEBUG_WRITECOUNT
@@ -1063,34 +1064,147 @@ extern int lease_modify(struct file_lock **, int);
 extern int lock_may_read(struct inode *, loff_t start, unsigned long count);
 extern int lock_may_write(struct inode *, loff_t start, unsigned long count);
 #else /* !CONFIG_FILE_LOCKING */
-#define fcntl_getlk(a, b) ({ -EINVAL; })
-#define fcntl_setlk(a, b, c, d) ({ -EACCES; })
+static inline int fcntl_getlk(struct file *file, struct flock __user *user)
+{
+        return -EINVAL;
+}
+
+static inline int fcntl_setlk(unsigned int fd, struct file *file,
+                              unsigned int cmd, struct flock __user *user)
+{
+        return -EACCES;
+}
+
 #if BITS_PER_LONG == 32
-#define fcntl_getlk64(a, b) ({ -EINVAL; })
-#define fcntl_setlk64(a, b, c, d) ({ -EACCES; })
+static inline int fcntl_getlk64(struct file *file, struct flock64 __user *user)
+{
+        return -EINVAL;
+}
+
+static inline int fcntl_setlk64(unsigned int fd, struct file *file,
+                                unsigned int cmd, struct flock64 __user *user)
+{
+        return -EACCES;
+}
 #endif
-#define fcntl_setlease(a, b, c) ({ 0; })
-#define fcntl_getlease(a) ({ 0; })
-#define locks_init_lock(a) ({ })
-#define __locks_copy_lock(a, b) ({ })
-#define locks_copy_lock(a, b) ({ })
-#define locks_remove_posix(a, b) ({ })
-#define locks_remove_flock(a) ({ })
-#define posix_test_lock(a, b) ({ 0; })
-#define posix_lock_file(a, b, c) ({ -ENOLCK; })
-#define posix_lock_file_wait(a, b) ({ -ENOLCK; })
-#define posix_unblock_lock(a, b) (-ENOENT)
-#define vfs_test_lock(a, b) ({ 0; })
-#define vfs_lock_file(a, b, c, d) (-ENOLCK)
-#define vfs_cancel_lock(a, b) ({ 0; })
-#define flock_lock_file_wait(a, b) ({ -ENOLCK; })
-#define __break_lease(a, b) ({ 0; })
-#define lease_get_mtime(a, b) ({ })
-#define generic_setlease(a, b, c) ({ -EINVAL; })
-#define vfs_setlease(a, b, c) ({ -EINVAL; })
-#define lease_modify(a, b) ({ -EINVAL; })
-#define lock_may_read(a, b, c) ({ 1; })
-#define lock_may_write(a, b, c) ({ 1; })
+static inline int fcntl_setlease(unsigned int fd, struct file *filp, long arg)
+{
+        return 0;
+}
+
+static inline int fcntl_getlease(struct file *filp)
+{
+        return 0;
+}
+
+static inline void locks_init_lock(struct file_lock *fl)
+{
+        return;
+}
+
+static inline void __locks_copy_lock(struct file_lock *new, struct file_lock *fl)
+{
+        return;
+}
+
+static inline void locks_copy_lock(struct file_lock *new, struct file_lock *fl)
+{
+        return;
+}
+
+static inline void locks_remove_posix(struct file *filp, fl_owner_t owner)
+{
+        return;
+}
+
+static inline void locks_remove_flock(struct file *filp)
+{
+        return;
+}
+
+static inline void posix_test_lock(struct file *filp, struct file_lock *fl)
+{
+        return;
+}
+
+static inline int posix_lock_file(struct file *filp, struct file_lock *fl,
+                                  struct file_lock *conflock)
+{
+        return -ENOLCK;
+}
+
+static inline int posix_lock_file_wait(struct file *filp, struct file_lock *fl)
+{
+        return -ENOLCK;
+}
+
+static inline int posix_unblock_lock(struct file *filp,
+                                     struct file_lock *waiter)
+{
+        return -ENOENT;
+}
+
+static inline int vfs_test_lock(struct file *filp, struct file_lock *fl)
+{
+        return 0;
+}
+
+static inline int vfs_lock_file(struct file *filp, unsigned int cmd,
+                                struct file_lock *fl, struct file_lock *conf)
+{
+        return -ENOLCK;
+}
+
+static inline int vfs_cancel_lock(struct file *filp, struct file_lock *fl)
+{
+        return 0;
+}
+
+static inline int flock_lock_file_wait(struct file *filp,
+                                       struct file_lock *request)
+{
+        return -ENOLCK;
+}
+
+static inline int __break_lease(struct inode *inode, unsigned int mode)
+{
+        return 0;
+}
+
+static inline void lease_get_mtime(struct inode *inode, struct timespec *time)
+{
+        return;
+}
+
+static inline int generic_setlease(struct file *filp, long arg,
+                                    struct file_lock **flp)
+{
+        return -EINVAL;
+}
+
+static inline int vfs_setlease(struct file *filp, long arg,
+                               struct file_lock **lease)
+{
+        return -EINVAL;
+}
+
+static inline int lease_modify(struct file_lock **before, int arg)
+{
+        return -EINVAL;
+}
+
+static inline int lock_may_read(struct inode *inode, loff_t start,
+                                unsigned long len)
+{
+        return 1;
+}
+
+static inline int lock_may_write(struct inode *inode, loff_t start,
+                                 unsigned long len)
+{
+        return 1;
+}
+
 #endif /* !CONFIG_FILE_LOCKING */
 
 
@@ -1606,7 +1720,7 @@ struct super_block *sget(struct file_system_type *type,
 extern int get_sb_pseudo(struct file_system_type *, char *,
         const struct super_operations *ops, unsigned long,
         struct vfsmount *mnt);
-extern int simple_set_mnt(struct vfsmount *mnt, struct super_block *sb);
+extern void simple_set_mnt(struct vfsmount *mnt, struct super_block *sb);
 int __put_super_and_need_restart(struct super_block *sb);
 
 /* Alas, no aliases. Too much hassle with bringing module.h everywhere */
@@ -1687,13 +1801,44 @@ static inline int break_lease(struct inode *inode, unsigned int mode)
         return 0;
 }
 #else /* !CONFIG_FILE_LOCKING */
-#define locks_mandatory_locked(a) ({ 0; })
-#define locks_mandatory_area(a, b, c, d, e) ({ 0; })
-#define __mandatory_lock(a) ({ 0; })
-#define mandatory_lock(a) ({ 0; })
-#define locks_verify_locked(a) ({ 0; })
-#define locks_verify_truncate(a, b, c) ({ 0; })
-#define break_lease(a, b) ({ 0; })
+static inline int locks_mandatory_locked(struct inode *inode)
+{
+        return 0;
+}
+
+static inline int locks_mandatory_area(int rw, struct inode *inode,
+                                       struct file *filp, loff_t offset,
+                                       size_t count)
+{
+        return 0;
+}
+
+static inline int __mandatory_lock(struct inode *inode)
+{
+        return 0;
+}
+
+static inline int mandatory_lock(struct inode *inode)
+{
+        return 0;
+}
+
+static inline int locks_verify_locked(struct inode *inode)
+{
+        return 0;
+}
+
+static inline int locks_verify_truncate(struct inode *inode, struct file *filp,
+                                        size_t size)
+{
+        return 0;
+}
+
+static inline int break_lease(struct inode *inode, unsigned int mode)
+{
+        return 0;
+}
+
 #endif /* CONFIG_FILE_LOCKING */
 
 /* fs/open.c */
@@ -1730,6 +1875,13 @@ extern void bd_set_size(struct block_device *, loff_t size);
 extern void bd_forget(struct inode *inode);
 extern void bdput(struct block_device *);
 extern struct block_device *open_by_devnum(dev_t, fmode_t);
+extern void invalidate_bdev(struct block_device *);
+extern int sync_blockdev(struct block_device *bdev);
+extern struct super_block *freeze_bdev(struct block_device *);
+extern int thaw_bdev(struct block_device *bdev, struct super_block *sb);
+extern int fsync_bdev(struct block_device *);
+extern int fsync_super(struct super_block *);
+extern int fsync_no_super(struct block_device *);
 #else
 static inline void bd_forget(struct inode *inode) {}
 #endif
@@ -1881,7 +2033,6 @@ static inline void allow_write_access(struct file *file)
         if (file)
                 atomic_inc(&file->f_path.dentry->d_inode->i_writecount);
 }
-extern int do_pipe(int *);
 extern int do_pipe_flags(int *, int);
 extern struct file *create_read_pipe(struct file *f, int flags);
 extern struct file *create_write_pipe(int flags);