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Diffstat (limited to 'block/bfq-cgroup.c')
-rw-r--r--block/bfq-cgroup.c12
1 files changed, 11 insertions, 1 deletions
diff --git a/block/bfq-cgroup.c b/block/bfq-cgroup.c
index 7d624a3a3f0f..627476bc6495 100644
--- a/block/bfq-cgroup.c
+++ b/block/bfq-cgroup.c
@@ -224,7 +224,7 @@ void bfqg_stats_update_io_add(struct bfq_group *bfqg, struct bfq_queue *bfqq,
{
blkg_rwstat_add(&bfqg->stats.queued, opf, 1);
bfqg_stats_end_empty_time(&bfqg->stats);
- if (!(bfqq == ((struct bfq_data *)bfqg->bfqd)->in_service_queue))
+ if (!(bfqq == bfqg->bfqd->in_service_queue))
bfqg_stats_set_start_group_wait_time(bfqg, bfqq_group(bfqq));
}
@@ -552,6 +552,7 @@ static void bfq_pd_init(struct blkg_policy_data *pd)
*/
bfqg->bfqd = bfqd;
bfqg->active_entities = 0;
+ bfqg->num_queues_with_pending_reqs = 0;
bfqg->online = true;
bfqg->rq_pos_tree = RB_ROOT;
}
@@ -645,6 +646,7 @@ void bfq_bfqq_move(struct bfq_data *bfqd, struct bfq_queue *bfqq,
{
struct bfq_entity *entity = &bfqq->entity;
struct bfq_group *old_parent = bfqq_group(bfqq);
+ bool has_pending_reqs = false;
/*
* No point to move bfqq to the same group, which can happen when
@@ -665,6 +667,11 @@ void bfq_bfqq_move(struct bfq_data *bfqd, struct bfq_queue *bfqq,
*/
bfqq->ref++;
+ if (entity->in_groups_with_pending_reqs) {
+ has_pending_reqs = true;
+ bfq_del_bfqq_in_groups_with_pending_reqs(bfqq);
+ }
+
/* If bfqq is empty, then bfq_bfqq_expire also invokes
* bfq_del_bfqq_busy, thereby removing bfqq and its entity
* from data structures related to current group. Otherwise we
@@ -692,6 +699,9 @@ void bfq_bfqq_move(struct bfq_data *bfqd, struct bfq_queue *bfqq,
/* pin down bfqg and its associated blkg */
bfqg_and_blkg_get(bfqg);
+ if (has_pending_reqs)
+ bfq_add_bfqq_in_groups_with_pending_reqs(bfqq);
+
if (bfq_bfqq_busy(bfqq)) {
if (unlikely(!bfqd->nonrot_with_queueing))
bfq_pos_tree_add_move(bfqd, bfqq);