xfs: remove XFS_DQ_INACTIVE
Free dquots when purging them during umount instead of keeping them around
on the freelist in a degraded state. The out of order locking in
xfs_qm_dqpurge will be removed again later in this series.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
diff --git a/fs/xfs/xfs_qm.c b/fs/xfs/xfs_qm.c
index 6535c4e..be1df68 100644
--- a/fs/xfs/xfs_qm.c
+++ b/fs/xfs/xfs_qm.c
@@ -154,12 +154,17 @@
xfs_qm_destroy(
struct xfs_qm *xqm)
{
- struct xfs_dquot *dqp, *n;
int hsize, i;
ASSERT(xqm != NULL);
ASSERT(xqm->qm_nrefs == 0);
+
unregister_shrinker(&xfs_qm_shaker);
+
+ mutex_lock(&xqm->qm_dqfrlist_lock);
+ ASSERT(list_empty(&xqm->qm_dqfrlist));
+ mutex_unlock(&xqm->qm_dqfrlist_lock);
+
hsize = xqm->qm_dqhashmask + 1;
for (i = 0; i < hsize; i++) {
xfs_qm_list_destroy(&(xqm->qm_usr_dqhtable[i]));
@@ -171,17 +176,6 @@
xqm->qm_grp_dqhtable = NULL;
xqm->qm_dqhashmask = 0;
- /* frlist cleanup */
- mutex_lock(&xqm->qm_dqfrlist_lock);
- list_for_each_entry_safe(dqp, n, &xqm->qm_dqfrlist, q_freelist) {
- xfs_dqlock(dqp);
- list_del_init(&dqp->q_freelist);
- xfs_Gqm->qm_dqfrlist_cnt--;
- xfs_dqunlock(dqp);
- xfs_qm_dqdestroy(dqp);
- }
- mutex_unlock(&xqm->qm_dqfrlist_lock);
- mutex_destroy(&xqm->qm_dqfrlist_lock);
kmem_free(xqm);
}
@@ -232,34 +226,10 @@
xfs_qm_rele_quotafs_ref(
struct xfs_mount *mp)
{
- xfs_dquot_t *dqp, *n;
-
ASSERT(xfs_Gqm);
ASSERT(xfs_Gqm->qm_nrefs > 0);
/*
- * Go thru the freelist and destroy all inactive dquots.
- */
- mutex_lock(&xfs_Gqm->qm_dqfrlist_lock);
-
- list_for_each_entry_safe(dqp, n, &xfs_Gqm->qm_dqfrlist, q_freelist) {
- xfs_dqlock(dqp);
- if (dqp->dq_flags & XFS_DQ_INACTIVE) {
- ASSERT(dqp->q_mount == NULL);
- ASSERT(! XFS_DQ_IS_DIRTY(dqp));
- ASSERT(list_empty(&dqp->q_hashlist));
- ASSERT(list_empty(&dqp->q_mplist));
- list_del_init(&dqp->q_freelist);
- xfs_Gqm->qm_dqfrlist_cnt--;
- xfs_dqunlock(dqp);
- xfs_qm_dqdestroy(dqp);
- } else {
- xfs_dqunlock(dqp);
- }
- }
- mutex_unlock(&xfs_Gqm->qm_dqfrlist_lock);
-
- /*
* Destroy the entire XQM. If somebody mounts with quotaon, this'll
* be restarted.
*/
@@ -1728,8 +1698,6 @@
* both the dquot and the freelistlock.
*/
if (dqp->dq_flags & XFS_DQ_WANT) {
- ASSERT(! (dqp->dq_flags & XFS_DQ_INACTIVE));
-
trace_xfs_dqreclaim_want(dqp);
XQM_STATS_INC(xqmstats.xs_qm_dqwants);
restarts++;
@@ -1737,23 +1705,6 @@
goto dqunlock;
}
- /*
- * If the dquot is inactive, we are assured that it is
- * not on the mplist or the hashlist, and that makes our
- * life easier.
- */
- if (dqp->dq_flags & XFS_DQ_INACTIVE) {
- ASSERT(mp == NULL);
- ASSERT(! XFS_DQ_IS_DIRTY(dqp));
- ASSERT(list_empty(&dqp->q_hashlist));
- ASSERT(list_empty(&dqp->q_mplist));
- list_del_init(&dqp->q_freelist);
- xfs_Gqm->qm_dqfrlist_cnt--;
- dqpout = dqp;
- XQM_STATS_INC(xqmstats.xs_qm_dqinact_reclaims);
- goto dqunlock;
- }
-
ASSERT(dqp->q_hash);
ASSERT(!list_empty(&dqp->q_mplist));