| Message ID | 20240902130329.3787024-5-yukuai1@huaweicloud.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | block, bfq: fix corner cases related to bfqq merging | expand |
On Mon 02-09-24 21:03:29, Yu Kuai wrote: > From: Yu Kuai <yukuai3@huawei.com> > > Instead of open coding it, there are no functional changes. > > Signed-off-by: Yu Kuai <yukuai3@huawei.com> Looks good. Feel free to add: Reviewed-by: Jan Kara <jack@suse.cz> Honza > --- > block/bfq-cgroup.c | 7 +------ > block/bfq-iosched.c | 4 ++-- > block/bfq-iosched.h | 2 ++ > 3 files changed, 5 insertions(+), 8 deletions(-) > > diff --git a/block/bfq-cgroup.c b/block/bfq-cgroup.c > index b758693697c0..9fb9f3533150 100644 > --- a/block/bfq-cgroup.c > +++ b/block/bfq-cgroup.c > @@ -679,12 +679,7 @@ void bfq_bfqq_move(struct bfq_data *bfqd, struct bfq_queue *bfqq, > bfq_put_idle_entity(bfq_entity_service_tree(entity), entity); > bfqg_and_blkg_put(old_parent); > > - if (entity->parent && > - entity->parent->last_bfqq_created == bfqq) > - entity->parent->last_bfqq_created = NULL; > - else if (bfqd->last_bfqq_created == bfqq) > - bfqd->last_bfqq_created = NULL; > - > + bfq_reassign_last_bfqq(bfqq, NULL); > entity->parent = bfqg->my_entity; > entity->sched_data = &bfqg->sched_data; > /* pin down bfqg and its associated blkg */ > diff --git a/block/bfq-iosched.c b/block/bfq-iosched.c > index ca766b7d5560..d1bf2b8a3576 100644 > --- a/block/bfq-iosched.c > +++ b/block/bfq-iosched.c > @@ -3097,8 +3097,8 @@ static void bfq_bfqq_save_state(struct bfq_queue *bfqq) > } > > > -static void > -bfq_reassign_last_bfqq(struct bfq_queue *cur_bfqq, struct bfq_queue *new_bfqq) > +void bfq_reassign_last_bfqq(struct bfq_queue *cur_bfqq, > + struct bfq_queue *new_bfqq) > { > if (cur_bfqq->entity.parent && > cur_bfqq->entity.parent->last_bfqq_created == cur_bfqq) > diff --git a/block/bfq-iosched.h b/block/bfq-iosched.h > index 08ddf2cfae5b..e16d96e2367b 100644 > --- a/block/bfq-iosched.h > +++ b/block/bfq-iosched.h > @@ -1156,6 +1156,8 @@ 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); > +void bfq_reassign_last_bfqq(struct bfq_queue *cur_bfqq, > + struct bfq_queue *new_bfqq); > > /* --------------- end of interface of B-WF2Q+ ---------------- */ > > -- > 2.39.2 >
diff --git a/block/bfq-cgroup.c b/block/bfq-cgroup.c index b758693697c0..9fb9f3533150 100644 --- a/block/bfq-cgroup.c +++ b/block/bfq-cgroup.c @@ -679,12 +679,7 @@ void bfq_bfqq_move(struct bfq_data *bfqd, struct bfq_queue *bfqq, bfq_put_idle_entity(bfq_entity_service_tree(entity), entity); bfqg_and_blkg_put(old_parent); - if (entity->parent && - entity->parent->last_bfqq_created == bfqq) - entity->parent->last_bfqq_created = NULL; - else if (bfqd->last_bfqq_created == bfqq) - bfqd->last_bfqq_created = NULL; - + bfq_reassign_last_bfqq(bfqq, NULL); entity->parent = bfqg->my_entity; entity->sched_data = &bfqg->sched_data; /* pin down bfqg and its associated blkg */ diff --git a/block/bfq-iosched.c b/block/bfq-iosched.c index ca766b7d5560..d1bf2b8a3576 100644 --- a/block/bfq-iosched.c +++ b/block/bfq-iosched.c @@ -3097,8 +3097,8 @@ static void bfq_bfqq_save_state(struct bfq_queue *bfqq) } -static void -bfq_reassign_last_bfqq(struct bfq_queue *cur_bfqq, struct bfq_queue *new_bfqq) +void bfq_reassign_last_bfqq(struct bfq_queue *cur_bfqq, + struct bfq_queue *new_bfqq) { if (cur_bfqq->entity.parent && cur_bfqq->entity.parent->last_bfqq_created == cur_bfqq) diff --git a/block/bfq-iosched.h b/block/bfq-iosched.h index 08ddf2cfae5b..e16d96e2367b 100644 --- a/block/bfq-iosched.h +++ b/block/bfq-iosched.h @@ -1156,6 +1156,8 @@ 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); +void bfq_reassign_last_bfqq(struct bfq_queue *cur_bfqq, + struct bfq_queue *new_bfqq); /* --------------- end of interface of B-WF2Q+ ---------------- */