From: Bart Van Assche bvanassche@acm.org
[ Upstream commit 725f22a1477c9c15aa67ad3af96fe28ec4fe72d2 ]
Before commit 322cff70d46c the fifo_time member of requests on a dispatch list was not used. Commit 322cff70d46c introduces code that reads the fifo_time member of requests on dispatch lists. Hence this patch that sets the fifo_time member when adding a request to a dispatch list.
Cc: Christoph Hellwig hch@lst.de Cc: Ming Lei ming.lei@redhat.com Cc: Damien Le Moal damien.lemoal@opensource.wdc.com Fixes: 322cff70d46c ("block/mq-deadline: Prioritize high-priority requests") Signed-off-by: Bart Van Assche bvanassche@acm.org Link: https://lore.kernel.org/r/20220513171307.32564-1-bvanassche@acm.org Signed-off-by: Jens Axboe axboe@kernel.dk Signed-off-by: Sasha Levin sashal@kernel.org --- block/mq-deadline.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/block/mq-deadline.c b/block/mq-deadline.c index 3ed5eaf3446a..6ed602b2f80a 100644 --- a/block/mq-deadline.c +++ b/block/mq-deadline.c @@ -742,6 +742,7 @@ static void dd_insert_request(struct blk_mq_hw_ctx *hctx, struct request *rq,
if (at_head) { list_add(&rq->queuelist, &per_prio->dispatch); + rq->fifo_time = jiffies; } else { deadline_add_rq_rb(per_prio, rq);