vfs: Rename fsync_super() to sync_filesystem() (version 4)

Rename the function so that it better describe what it really does. Also
remove the unnecessary include of buffer_head.h.
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

fs/block_dev.c

@@ -204,7 +204,7 @@ int fsync_bdev(struct block_device *bdev)
 {
 	struct super_block *sb = get_super(bdev);
 	if (sb) {
-		int res = fsync_super(sb);
+		int res = sync_filesystem(sb);
 		drop_super(sb);
 		return res;
 	}
@@ -246,7 +246,7 @@ struct super_block *freeze_bdev(struct block_device *bdev)
 		sb->s_frozen = SB_FREEZE_WRITE;
 		smp_wmb();
 
-		fsync_super(sb);
+		sync_filesystem(sb);
 
 		sb->s_frozen = SB_FREEZE_TRANS;
 		smp_wmb();

fs/cachefiles/interface.c

@@ -354,7 +354,7 @@ static void cachefiles_sync_cache(struct fscache_cache *_cache)
 	/* make sure all pages pinned by operations on behalf of the netfs are
 	 * written to disc */
 	cachefiles_begin_secure(cache, &saved_cred);
-	ret = fsync_super(cache->mnt->mnt_sb);
+	ret = sync_filesystem(cache->mnt->mnt_sb);
 	cachefiles_end_secure(cache, saved_cred);
 
 	if (ret == -EIO)

fs/super.c

@@ -28,7 +28,6 @@
 #include <linux/blkdev.h>
 #include <linux/quotaops.h>
 #include <linux/namei.h>
-#include <linux/buffer_head.h>		/* for fsync_super() */
 #include <linux/mount.h>
 #include <linux/security.h>
 #include <linux/syscalls.h>
@@ -304,7 +303,7 @@ void generic_shutdown_super(struct super_block *sb)
 
 	if (sb->s_root) {
 		shrink_dcache_for_umount(sb);
-		fsync_super(sb);
+		sync_filesystem(sb);
 		lock_super(sb);
 		sb->s_flags &= ~MS_ACTIVE;
 
@@ -543,7 +542,7 @@ int do_remount_sb(struct super_block *sb, int flags, void *data, int force)
 	if (flags & MS_RDONLY)
 		acct_auto_close(sb);
 	shrink_dcache_sb(sb);
-	fsync_super(sb);
+	sync_filesystem(sb);
 
 	/* If we are remounting RDONLY and current sb is read/write,
 	   make sure there are no rw files opened */

fs/sync.c

@@ -25,7 +25,7 @@
  * case write_inode() functions do sync_dirty_buffer() and thus effectively
  * write one block at a time.
  */
-static int __fsync_super(struct super_block *sb, int wait)
+static int __sync_filesystem(struct super_block *sb, int wait)
 {
 	vfs_dq_sync(sb);
 	sync_inodes_sb(sb, wait);
@@ -43,16 +43,16 @@ static int __fsync_super(struct super_block *sb, int wait)
  * superblock.  Filesystem data as well as the underlying block
  * device.  Takes the superblock lock.
  */
-int fsync_super(struct super_block *sb)
+int sync_filesystem(struct super_block *sb)
 {
 	int ret;
 
-	ret = __fsync_super(sb, 0);
+	ret = __sync_filesystem(sb, 0);
 	if (ret < 0)
 		return ret;
-	return __fsync_super(sb, 1);
+	return __sync_filesystem(sb, 1);
 }
-EXPORT_SYMBOL_GPL(fsync_super);
+EXPORT_SYMBOL_GPL(sync_filesystem);
 
 /*
  * Sync all the data for all the filesystems (called by sys_sync() and
@@ -92,7 +92,7 @@ static void sync_filesystems(int wait)
 		spin_unlock(&sb_lock);
 		down_read(&sb->s_umount);
 		if (sb->s_root)
-			__fsync_super(sb, wait);
+			__sync_filesystem(sb, wait);
 		up_read(&sb->s_umount);
 		/* restart only when sb is no longer on the list */
 		spin_lock(&sb_lock);

include/linux/fs.h

@@ -1958,7 +1958,7 @@ static inline int thaw_bdev(struct block_device *bdev, struct super_block *sb)
 	return 0;
 }
 #endif
-extern int fsync_super(struct super_block *);
+extern int sync_filesystem(struct super_block *);
 extern const struct file_operations def_blk_fops;
 extern const struct file_operations def_chr_fops;
 extern const struct file_operations bad_sock_fops;