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Revert "ext4: wait on all pending commits in ext4_sync_fs()"

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This undoes commit 14ce0cb411.

Since jbd2_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 ext4_force_commit() in ext4_sync_fs(). Furthermore
ext4_force_commit() can unnecessarily create sync transaction which is
expensive so it's worthwhile to remove it when we can.

http://bugzilla.kernel.org/show_bug.cgi?id=12224

Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: Eric Sandeen <sandeen@redhat.com>
Cc: linux-ext4@vger.kernel.org
This commit is contained in:
Jan Kara 2009-02-10 06:46:05 -05:00 committed by Theodore Tso
parent c88ccea314
commit 9eddacf9e9
1 changed files with 7 additions and 4 deletions
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11
fs/ext4/super.c
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@ -3046,14 +3046,17 @@ static void ext4_write_super(struct super_block *sb)
static int ext4_sync_fs(struct super_block *sb, int wait)
{
int ret = 0;
tid_t target;
trace_mark(ext4_sync_fs, "dev %s wait %d", sb->s_id, wait);
sb->s_dirt = 0;
if (EXT4_SB(sb)->s_journal) {
if (wait)
ret = ext4_force_commit(sb);
else
jbd2_journal_start_commit(EXT4_SB(sb)->s_journal, NULL);
if (jbd2_journal_start_commit(EXT4_SB(sb)->s_journal,
&target)) {
if (wait)
jbd2_log_wait_commit(EXT4_SB(sb)->s_journal,
target);
}
} else {
ext4_commit_super(sb, EXT4_SB(sb)->s_es, wait);
}