[PATCH] Remove superfluous lock_super() in extN xattr code

lock_super() is unnecessary for setting super-block feature flags.  Use the
provided *_SET_COMPAT_FEATURE() macros as well.

Signed-off-by: Andreas Gruenbacher <agruen@suse.de>
Cc: <linux-ext4@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 1 insertions, 4 deletions

diff --git a/fs/ext3/xattr.c b/fs/ext3/xattr.c
index f86f2482f01d..99857a400f4b 100644
--- a/fs/ext3/xattr.c
+++ b/fs/ext3/xattr.c
@@ -459,14 +459,11 @@ static void ext3_xattr_update_super_block(handle_t *handle,
         if (EXT3_HAS_COMPAT_FEATURE(sb, EXT3_FEATURE_COMPAT_EXT_ATTR))
                 return;
 
-        lock_super(sb);
         if (ext3_journal_get_write_access(handle, EXT3_SB(sb)->s_sbh) == 0) {
-                EXT3_SB(sb)->s_es->s_feature_compat |=
-                        cpu_to_le32(EXT3_FEATURE_COMPAT_EXT_ATTR);
+                EXT3_SET_COMPAT_FEATURE(sb, EXT3_FEATURE_COMPAT_EXT_ATTR);
                 sb->s_dirt = 1;
                 ext3_journal_dirty_metadata(handle, EXT3_SB(sb)->s_sbh);
         }
-        unlock_super(sb);
 }
 
 /*