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authorJan Kara <jack@suse.cz>2010-05-14 00:14:53 +0400
committerJan Kara <jack@suse.cz>2010-05-21 21:30:48 +0400
commitc06bcbfa1ed8daaeb2a262f372b411207891e229 (patch)
treedb734e409643108ea4b5df28bf18bcfac654eaca /fs/ocfs2/quota_local.c
parent52a9ee281cfb26fffce1d6c409fb4b1f4aa8a766 (diff)
downloadlinux-c06bcbfa1ed8daaeb2a262f372b411207891e229.tar.xz
ocfs2: Fix lock inversion in quotas during umount
We cannot cancel delayed work from ocfs2_local_free_info because that is called with dqonoff_mutex held and the work it cancels requires dqonoff_mutex to finish. Cancel the work before acquiring dqonoff_mutex. Acked-by: Joel Becker <Joel.Becker@oracle.com> Signed-off-by: Jan Kara <jack@suse.cz>
Diffstat (limited to 'fs/ocfs2/quota_local.c')
-rw-r--r--fs/ocfs2/quota_local.c4
1 files changed, 0 insertions, 4 deletions
diff --git a/fs/ocfs2/quota_local.c b/fs/ocfs2/quota_local.c
index 551a6bff9f2c..8bd70d4d184d 100644
--- a/fs/ocfs2/quota_local.c
+++ b/fs/ocfs2/quota_local.c
@@ -816,10 +816,6 @@ 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);