[PATCH 3/6] hfs: remove extra mdb write on unmount

From: Artem Bityutskiy
Date: Tue Jun 12 2012 - 04:12:23 EST


From: Artem Bityutskiy <artem.bityutskiy@xxxxxxxxxxxxxxx>

HFS calls 'hfs_write_super()' from 'hfs_put_super()' in order to write the MDB
to the media. However, it is not needed because VFS calls '->sync_fs()' before
calling '->put_super()' - so by the time we are in 'hfs_write_super()', the MDB
is already synchronized.

Signed-off-by: Artem Bityutskiy <artem.bityutskiy@xxxxxxxxxxxxxxx>
---
fs/hfs/super.c | 2 --
1 files changed, 0 insertions(+), 2 deletions(-)

diff --git a/fs/hfs/super.c b/fs/hfs/super.c
index f7c06bb..47e4119 100644
--- a/fs/hfs/super.c
+++ b/fs/hfs/super.c
@@ -74,8 +74,6 @@ static int hfs_sync_fs(struct super_block *sb, int wait)
*/
static void hfs_put_super(struct super_block *sb)
{
- if (sb->s_dirt)
- hfs_write_super(sb);
hfs_mdb_close(sb);
/* release the MDB's resources */
hfs_mdb_put(sb);
--
1.7.7.6

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