[PATCH 7/8] bfq: reset entity->prio_changed in bfq_init_entity()
From: brookxu <hidden>
Date: 2021-06-10 07:24:27
Also in:
lkml
Subsystem:
bfq i/o scheduler, block layer, control group - block io controller (blkio), the rest · Maintainers:
Yu Kuai, Jens Axboe, Tejun Heo, Josef Bacik, Linus Torvalds
From: Chunguang Xu <redacted> Since weight, ioprio, ioprio_class will be updated in bfq_init_entity(), st->wsum will be updated in __bfq_activate_entity(), so when it is first active, it seems that __bfq_entity_update_weight_prio() has nothing to do. By resetting entity->prio_change in bfq_init_entity(), we can avoid unnecessary logic calls. Signed-off-by: Chunguang Xu <redacted> --- block/bfq-cgroup.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/block/bfq-cgroup.c b/block/bfq-cgroup.c
index c8c68dc..79a5aaa 100644
--- a/block/bfq-cgroup.c
+++ b/block/bfq-cgroup.c@@ -426,6 +426,7 @@ void bfq_init_entity(struct bfq_entity *entity, struct bfq_group *bfqg) entity->weight = entity->new_weight; entity->orig_weight = entity->new_weight; + entity->prio_changed = 0; if (bfqq) { bfqq->ioprio = bfqq->new_ioprio; bfqq->ioprio_class = bfqq->new_ioprio_class;
--
1.8.3.1