Messages in this thread | | | Subject | Re: [PATCH BUGFIX/IMPROVEMENT 1/6] block, bfq: always inject I/O of queues blocked by wakers | From | Jens Axboe <> | Date | Tue, 26 Jan 2021 09:17:55 -0700 |
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On 1/26/21 3:50 AM, Paolo Valente wrote: > diff --git a/block/bfq-iosched.c b/block/bfq-iosched.c > index 445cef9c0bb9..a83149407336 100644 > --- a/block/bfq-iosched.c > +++ b/block/bfq-iosched.c > @@ -4487,9 +4487,15 @@ static struct bfq_queue *bfq_select_queue(struct bfq_data *bfqd) > bfq_bfqq_busy(bfqq->bic->bfqq[0]) && > bfqq->bic->bfqq[0]->next_rq ? > bfqq->bic->bfqq[0] : NULL; > + struct bfq_queue *blocked_bfqq = > + !hlist_empty(&bfqq->woken_list) ? > + container_of(bfqq->woken_list.first, > + struct bfq_queue, > + woken_list_node) > + : NULL;
hlist_first_entry_or_null?
-- Jens Axboe
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