diff options
| author | Yu Kuai <yukuai3@huawei.com> | 2022-09-16 09:19:38 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2022-11-01 14:09:44 +0100 |
| commit | 60a6e10c537a7459dd53882186bd16fff257fb03 (patch) | |
| tree | d25f98c14b4a0cc2cca985944c56dc263f908e36 /block/bfq-wf2q.c | |
| parent | block, bfq: support to track if bfqq has pending requests (diff) | |
| download | linux-60a6e10c537a7459dd53882186bd16fff257fb03.tar.xz linux-60a6e10c537a7459dd53882186bd16fff257fb03.zip | |
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 <yukuai3@huawei.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Acked-by: Paolo Valente <paolo.valente@linaro.org>
Link: https://lore.kernel.org/r/20220916071942.214222-3-yukuai1@huaweicloud.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/bfq-wf2q.c')
| -rw-r--r-- | block/bfq-wf2q.c | 12 |
1 files changed, 10 insertions, 2 deletions
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 + } } /* |