From 04a0c0d148bfe395ed73489fc3d041f508efbc6b Mon Sep 17 00:00:00 2001 From: Douglas Anderson Date: Mon, 20 Apr 2020 09:24:54 -0700 Subject: [PATCH] Revert "scsi: core: run queue if SCSI device queue isn't ready and queue is idle" This reverts commit fb82fd7e2b5c7467c7d5bdd5e8f8163c98adaa3a. Now that we have the patches ("blk-mq: In blk_mq_dispatch_rq_list() "no budget" is a reason to kick") and ("blk-mq: Rerun dispatching in the case of budget contention") we should no longer need the fix in the SCSI code. Revert it, resolving conflicts with other patches that have touched this code. With this revert (and the two new patches) I can run the script that was in commit fb82fd7e2b5c ("scsi: core: run queue if SCSI device queue isn't ready and queue is idle") in a loop with no failure. If I do this revert without the two new patches I can easily get a failure. Signed-off-by: Douglas Anderson Reviewed-by: Ming Lei Acked-by: Martin K. Petersen Signed-off-by: Jens Axboe --- drivers/scsi/scsi_lib.c | 7 +------ 1 file changed, 1 insertion(+), 6 deletions(-) diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c index 47835c4b4ee05..ea18f618dc66f 100644 --- a/drivers/scsi/scsi_lib.c +++ b/drivers/scsi/scsi_lib.c @@ -1610,12 +1610,7 @@ static bool scsi_mq_get_budget(struct blk_mq_hw_ctx *hctx) struct request_queue *q = hctx->queue; struct scsi_device *sdev = q->queuedata; - if (scsi_dev_queue_ready(q, sdev)) - return true; - - if (atomic_read(&sdev->device_busy) == 0 && !scsi_device_blocked(sdev)) - blk_mq_delay_run_hw_queue(hctx, SCSI_QUEUE_DELAY); - return false; + return scsi_dev_queue_ready(q, sdev); } static blk_status_t scsi_queue_rq(struct blk_mq_hw_ctx *hctx, -- 2.39.5