From: Jens Axboe Date: Fri, 17 Feb 2017 18:37:14 +0000 (-0700) Subject: blk-mq-sched: don't add flushes to the head of requeue queue X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=c7a571b45055dba740156013fef4a7fdbe3262d9;p=openwrt%2Fstaging%2Fblogic.git blk-mq-sched: don't add flushes to the head of requeue queue If we are currently out of driver tags, we don't want to add a new flush (without a tag) to the head of the requeue list. We want to add it to the back, behind the others that are potentially also waiting for a tag. Signed-off-by: Jens Axboe Reviewed-by: Omar Sandoval --- diff --git a/block/blk-mq-sched.c b/block/blk-mq-sched.c index 97fe904f0a04..4ee7cb043812 100644 --- a/block/blk-mq-sched.c +++ b/block/blk-mq-sched.c @@ -351,7 +351,7 @@ static void blk_mq_sched_insert_flush(struct blk_mq_hw_ctx *hctx, blk_insert_flush(rq); blk_mq_run_hw_queue(hctx, true); } else - blk_mq_add_to_requeue_list(rq, true, true); + blk_mq_add_to_requeue_list(rq, false, true); } void blk_mq_sched_insert_request(struct request *rq, bool at_head,