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[7/8] bfq: reset entity->prio_changed in bfq_init_entity()

Message ID 34c02f3525ed632ea1878591b41174aee50e953d.1618916839.git.brookxu@tencent.com (mailing list archive)
State New
Headers show
Series bfq: misc updates | expand

Commit Message

brookxu April 20, 2021, 11:20 a.m. UTC
From: Chunguang Xu <brookxu@tencent.com>

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 <brookxu@tencent.com>
 block/bfq-cgroup.c | 1 +
 1 file changed, 1 insertion(+)
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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;