vfs: Make __fsync_super() a static function (version 4)

__fsync_super() does the same thing as fsync_super(). So change the only
caller to use fsync_super() and make __fsync_super() static. This removes
unnecessarily duplicated call to sync_blockdev() and prepares ground
for the changes to __fsync_super() in the following patches.

Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

3 files changed, 4 insertions, 6 deletions

diff --git a/fs/block_dev.c b/fs/block_dev.c
index 931f6b8c4b2f..fe47f7227618 100644
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -241,7 +241,7 @@ struct super_block *freeze_bdev(struct block_device *bdev)
                 sb->s_frozen = SB_FREEZE_WRITE;
                 smp_wmb();
 
-                __fsync_super(sb);
+                fsync_super(sb);
 
                 sb->s_frozen = SB_FREEZE_TRANS;
                 smp_wmb();
diff --git a/fs/super.c b/fs/super.c
index fae91ba38e48..8dbe1ead9ddd 100644
--- a/fs/super.c
+++ b/fs/super.c
@@ -289,7 +289,7 @@ EXPORT_SYMBOL(unlock_super);
  * device.  Takes the superblock lock.  Requires a second blkdev
  * flush by the caller to complete the operation.
  */
-void __fsync_super(struct super_block *sb)
+static int __fsync_super(struct super_block *sb)
 {
         sync_inodes_sb(sb, 0);
         vfs_dq_sync(sb);
@@ -300,7 +300,7 @@ void __fsync_super(struct super_block *sb)
         unlock_super(sb);
         if (sb->s_op->sync_fs)
                 sb->s_op->sync_fs(sb, 1);
-        sync_blockdev(sb->s_bdev);
+        return sync_blockdev(sb->s_bdev);
 }
 
 /*
@@ -310,8 +310,7 @@ void __fsync_super(struct super_block *sb)
  */
 int fsync_super(struct super_block *sb)
 {
-        __fsync_super(sb);
-        return sync_blockdev(sb->s_bdev);
+        return __fsync_super(sb);
 }
 EXPORT_SYMBOL_GPL(fsync_super);
 
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 36bcff7036ef..41a9907f342e 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -2078,7 +2078,6 @@ extern int filemap_fdatawrite_range(struct address_space *mapping,
 extern int vfs_fsync(struct file *file, struct dentry *dentry, int datasync);
 extern void sync_supers(void);
 extern void sync_filesystems(int wait);
-extern void __fsync_super(struct super_block *sb);
 extern void emergency_sync(void);
 extern void emergency_remount(void);
 extern int do_remount_sb(struct super_block *sb, int flags,