ext3: revert "ext3: wait on all pending commits in ext3_sync_fs"

This reverts commit c87591b719737b4e91eb1a9fa8fd55a4ff1886d6.

Since journal_start_commit() is now fixed to return 1 when we started a
transaction commit, there's some transaction waiting to be committed or
there's a transaction already committing, we don't need to call
ext3_force_commit() in ext3_sync_fs().  Furthermore ext3_force_commit()
can unnecessarily create sync transaction which is expensive so it's
worthwhile to remove it when we can.

Cc: Eric Sandeen <sandeen@redhat.com>
Cc: <linux-ext4@vger.kernel.org>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/fs/ext3/super.c b/fs/ext3/super.c
index b70d90e..4a97041 100644 (file)
--- a/fs/ext3/super.c
+++ b/fs/ext3/super.c
@@ -2428,12 +2428,13 @@ static void ext3_write_super (struct super_block * sb)
 
 static int ext3_sync_fs(struct super_block *sb, int wait)
 {
-       sb->s_dirt = 0;
-       if (wait)
-               ext3_force_commit(sb);
-       else
-               journal_start_commit(EXT3_SB(sb)->s_journal, NULL);
+       tid_t target;
 
+       sb->s_dirt = 0;
+       if (journal_start_commit(EXT3_SB(sb)->s_journal, &target)) {
+               if (wait)
+                       log_wait_commit(EXT3_SB(sb)->s_journal, target);
+       }
        return 0;
 }