From 790cf9c84837b232eb413b8b6b5d57817176cb23 Mon Sep 17 00:00:00 2001 From: Jan Kara Date: Thu, 25 Nov 2021 14:36:34 +0100 Subject: block: Provide blk_mq_sched_get_icq() Currently we lookup ICQ only after the request is allocated. However BFQ will want to decide how many scheduler tags it allows a given bfq queue (effectively a process) to consume based on cgroup weight. So provide a function blk_mq_sched_get_icq() so that BFQ can lookup ICQ earlier. Acked-by: Paolo Valente Signed-off-by: Jan Kara Link: https://lore.kernel.org/r/20211125133645.27483-1-jack@suse.cz Signed-off-by: Jens Axboe --- block/blk-mq-sched.h | 1 + 1 file changed, 1 insertion(+) (limited to 'block/blk-mq-sched.h') diff --git a/block/blk-mq-sched.h b/block/blk-mq-sched.h index 25d1034952b6..add651ec06da 100644 --- a/block/blk-mq-sched.h +++ b/block/blk-mq-sched.h @@ -8,6 +8,7 @@ #define MAX_SCHED_RQ (16 * BLKDEV_DEFAULT_RQ) +struct io_cq *blk_mq_sched_get_icq(struct request_queue *q); void blk_mq_sched_assign_ioc(struct request *rq); bool blk_mq_sched_try_merge(struct request_queue *q, struct bio *bio, -- cgit v1.2.3