[PATCH v5 06/12] blk-mq: use the introduced blk_mq_unquiesce_queue()
From: Ming Lei <hidden>
Date: 2017-06-06 15:22:04
Also in:
dm-devel, linux-nvme, linux-scsi
Subsystem:
device-mapper (lvm), nvm express driver, scsi subsystem, the rest · Maintainers:
Alasdair Kergon, Mike Snitzer, Mikulas Patocka, Benjamin Marzinski, Keith Busch, Jens Axboe, Christoph Hellwig, Sagi Grimberg, "James E.J. Bottomley", "Martin K. Petersen", Linus Torvalds
blk_mq_unquiesce_queue() is used for unquiescing the queue explicitly, so replace blk_mq_start_stopped_hw_queues() with it. For the scsi part, this patch takes Bart's suggestion to switch to block quiesce/unquiesce API completely. Cc: linux-nvme@lists.infradead.org Cc: linux-scsi@vger.kernel.org Cc: dm-devel@redhat.com Reviewed-by: Bart Van Assche <redacted> Signed-off-by: Ming Lei <redacted> --- drivers/md/dm-rq.c | 2 +- drivers/nvme/host/core.c | 2 +- drivers/scsi/scsi_lib.c | 4 ++-- 3 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/md/dm-rq.c b/drivers/md/dm-rq.c
index b639fa7246ee..ea4029de077f 100644
--- a/drivers/md/dm-rq.c
+++ b/drivers/md/dm-rq.c@@ -71,7 +71,7 @@ static void dm_old_start_queue(struct request_queue *q) static void dm_mq_start_queue(struct request_queue *q) { - blk_mq_start_stopped_hw_queues(q, true); + blk_mq_unquiesce_queue(q); blk_mq_kick_requeue_list(q); }
diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index a60926410438..c3f189e54d10 100644
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c@@ -2526,7 +2526,7 @@ void nvme_start_queues(struct nvme_ctrl *ctrl) mutex_lock(&ctrl->namespaces_mutex); list_for_each_entry(ns, &ctrl->namespaces, list) { - blk_mq_start_stopped_hw_queues(ns->queue, true); + blk_mq_unquiesce_queue(ns->queue); blk_mq_kick_requeue_list(ns->queue); } mutex_unlock(&ctrl->namespaces_mutex);
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index 884aaa84c2dd..d6df1dafdc9f 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c@@ -2979,7 +2979,7 @@ scsi_internal_device_block(struct scsi_device *sdev, bool wait) if (wait) blk_mq_quiesce_queue(q); else - blk_mq_stop_hw_queues(q); + blk_mq_quiesce_queue_nowait(q); } else { spin_lock_irqsave(q->queue_lock, flags); blk_stop_queue(q);
@@ -3033,7 +3033,7 @@ scsi_internal_device_unblock(struct scsi_device *sdev, return -EINVAL; if (q->mq_ops) { - blk_mq_start_stopped_hw_queues(q, false); + blk_mq_unquiesce_queue(q); } else { spin_lock_irqsave(q->queue_lock, flags); blk_start_queue(q);
--
2.9.4