vfs: Call ->sync_fs() even if s_dirt is 0 (version 4)

sync_filesystems() has a condition that if wait == 0 and s_dirt == 0, then ->sync_fs() isn't called. This does not really make much sence since s_dirt is generally used by a filesystem to mean that ->write_super() needs to be called. But ->sync_fs() does different things. I even suspect that some filesystems (btrfs?) sets s_dirt just to fool this logic. Signed-off-by: Jan Kara <[email protected]> Signed-off-by: Al Viro <[email protected]>
iegor · Jun 12, 2009 · bfe8812 · bfe8812
1 parent 5a3e5cb
commit bfe8812
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/fs/super.c b/fs/super.c
@@ -510,7 +510,7 @@ void sync_filesystems(int wait)
 		sb->s_count++;
 		spin_unlock(&sb_lock);
 		down_read(&sb->s_umount);
-		if (sb->s_root && (wait || sb->s_dirt))
+		if (sb->s_root)
 			sb->s_op->sync_fs(sb, wait);
 		up_read(&sb->s_umount);
 		/* restart only when sb is no longer on the list */