diff options
| author | Yu Kuai <yukuai3@huawei.com> | 2022-09-16 10:19:37 +0300 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2022-11-01 16:09:44 +0300 |
| commit | 3d89bd12d352e20f4f7c8f11a0f1a712b95a5295 (patch) | |
| tree | 2d89e70a86add19d910dd054fc81fd59163d791d /block | |
| parent | 56c1ee92246a5099a626b955dd7f6636cdce6f93 (diff) | |
| download | linux-3d89bd12d352e20f4f7c8f11a0f1a712b95a5295.tar.xz | |
block, bfq: support to track if bfqq has pending requests
If entity belongs to bfqq, then entity->in_groups_with_pending_reqs
is not used currently. This patch use it to track if bfqq has pending
requests through callers of weights_tree insertion and removal.
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/20220916071942.214222-2-yukuai1@huaweicloud.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block')
| -rw-r--r-- | block/bfq-iosched.c | 1 | ||||
| -rw-r--r-- | block/bfq-iosched.h | 2 | ||||
| -rw-r--r-- | block/bfq-wf2q.c | 24 |
3 files changed, 25 insertions, 2 deletions
diff --git a/block/bfq-iosched.c b/block/bfq-iosched.c index ccfadc6f71bf..71fadc7ebe0d 100644 --- a/block/bfq-iosched.c +++ b/block/bfq-iosched.c @@ -6261,6 +6261,7 @@ static void bfq_completed_request(struct bfq_queue *bfqq, struct bfq_data *bfqd) */ bfqq->budget_timeout = jiffies; + bfq_del_bfqq_in_groups_with_pending_reqs(bfqq); bfq_weights_tree_remove(bfqd, bfqq); } diff --git a/block/bfq-iosched.h b/block/bfq-iosched.h index 71f721670ab6..42c910f2d50d 100644 --- a/block/bfq-iosched.h +++ b/block/bfq-iosched.h @@ -1078,6 +1078,8 @@ void bfq_requeue_bfqq(struct bfq_data *bfqd, struct bfq_queue *bfqq, bool expiration); void bfq_del_bfqq_busy(struct bfq_queue *bfqq, bool expiration); void bfq_add_bfqq_busy(struct bfq_queue *bfqq); +void bfq_add_bfqq_in_groups_with_pending_reqs(struct bfq_queue *bfqq); +void bfq_del_bfqq_in_groups_with_pending_reqs(struct bfq_queue *bfqq); /* --------------- end of interface of B-WF2Q+ ---------------- */ diff --git a/block/bfq-wf2q.c b/block/bfq-wf2q.c index 8fc3da4c23bb..bd8f4ed84848 100644 --- a/block/bfq-wf2q.c +++ b/block/bfq-wf2q.c @@ -1646,6 +1646,22 @@ void bfq_requeue_bfqq(struct bfq_data *bfqd, struct bfq_queue *bfqq, bfqq == bfqd->in_service_queue, expiration); } +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) + entity->in_groups_with_pending_reqs = true; +} + +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) + entity->in_groups_with_pending_reqs = false; +} + /* * Called when the bfqq no longer has requests pending, remove it from * the service tree. As a special case, it can be invoked during an @@ -1668,8 +1684,10 @@ void bfq_del_bfqq_busy(struct bfq_queue *bfqq, bool expiration) bfq_deactivate_bfqq(bfqd, bfqq, true, expiration); - if (!bfqq->dispatched) + if (!bfqq->dispatched) { + bfq_del_bfqq_in_groups_with_pending_reqs(bfqq); bfq_weights_tree_remove(bfqd, bfqq); + } } /* @@ -1686,10 +1704,12 @@ void bfq_add_bfqq_busy(struct bfq_queue *bfqq) bfq_mark_bfqq_busy(bfqq); bfqd->busy_queues[bfqq->ioprio_class - 1]++; - if (!bfqq->dispatched) + if (!bfqq->dispatched) { + bfq_add_bfqq_in_groups_with_pending_reqs(bfqq); if (bfqq->wr_coeff == 1) bfq_weights_tree_add(bfqd, bfqq, &bfqd->queue_weights_tree); + } if (bfqq->wr_coeff > 1) bfqd->wr_busy_queues++; |