ocfs2: Periodic quota syncing

This patch creates a work queue for periodic syncing of locally cached quota
information to the global quota files. We constantly queue a delayed work
item, to get the periodic behavior.

Signed-off-by: Mark Fasheh <mfasheh@suse.com>
Acked-by: Jan Kara <jack@suse.cz>

1 files changed, 4 insertions, 0 deletions

diff --git a/fs/ocfs2/quota_local.c b/fs/ocfs2/quota_local.c
index 55c3f2f98dcd..40e82b483136 100644
--- a/fs/ocfs2/quota_local.c
+++ b/fs/ocfs2/quota_local.c
@@ -368,6 +368,10 @@ static int ocfs2_local_free_info(struct super_block *sb, int type)
         int mark_clean = 1, len;
         int status;
 
+        /* At this point we know there are no more dquots and thus
+         * even if there's some sync in the pdflush queue, it won't
+         * find any dquots and return without doing anything */
+        cancel_delayed_work_sync(&oinfo->dqi_sync_work);
         iput(oinfo->dqi_gqinode);
         ocfs2_simple_drop_lockres(OCFS2_SB(sb), &oinfo->dqi_gqlock);
         ocfs2_lock_res_free(&oinfo->dqi_gqlock);