From 60a6e10c537a7459dd53882186bd16fff257fb03 Mon Sep 17 00:00:00 2001 From: Yu Kuai Date: Fri, 16 Sep 2022 15:19:38 +0800 Subject: block, bfq: record how many queues have pending requests Prepare to refactor the counting of 'num_groups_with_pending_reqs'. Add a counter in bfq_group, update it while tracking if bfqq have pending requests and when bfq_bfqq_move() is called. Signed-off-by: Yu Kuai Reviewed-by: Jan Kara Acked-by: Paolo Valente Link: https://lore.kernel.org/r/20220916071942.214222-3-yukuai1@huaweicloud.com Signed-off-by: Jens Axboe --- block/bfq-wf2q.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) (limited to 'block/bfq-wf2q.c') diff --git a/block/bfq-wf2q.c b/block/bfq-wf2q.c index bd8f4ed84848..5549ccf09cd2 100644 --- a/block/bfq-wf2q.c +++ b/block/bfq-wf2q.c @@ -1650,16 +1650,24 @@ void bfq_add_bfqq_in_groups_with_pending_reqs(struct bfq_queue *bfqq) { struct bfq_entity *entity = &bfqq->entity; - if (!entity->in_groups_with_pending_reqs) + if (!entity->in_groups_with_pending_reqs) { entity->in_groups_with_pending_reqs = true; +#ifdef CONFIG_BFQ_GROUP_IOSCHED + bfqq_group(bfqq)->num_queues_with_pending_reqs++; +#endif + } } void bfq_del_bfqq_in_groups_with_pending_reqs(struct bfq_queue *bfqq) { struct bfq_entity *entity = &bfqq->entity; - if (entity->in_groups_with_pending_reqs) + if (entity->in_groups_with_pending_reqs) { entity->in_groups_with_pending_reqs = false; +#ifdef CONFIG_BFQ_GROUP_IOSCHED + bfqq_group(bfqq)->num_queues_with_pending_reqs--; +#endif + } } /* -- cgit v1.2.3-70-g09d2