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From: Bart Van Assche <bart.vanassche@sandisk.com>
To: Jens Axboe <axboe@fb.com>
Cc: Christoph Hellwig <hch@lst.de>,
	James Bottomley <jejb@linux.vnet.ibm.com>,
	"Martin K. Petersen" <martin.petersen@oracle.com>,
	Mike Snitzer <snitzer@redhat.com>,
	Doug Ledford <dledford@redhat.com>,
	Keith Busch <keith.busch@intel.com>,
	"linux-block@vger.kernel.org" <linux-block@vger.kernel.org>,
	"linux-scsi@vger.kernel.org" <linux-scsi@vger.kernel.org>,
	"linux-rdma@vger.kernel.org" <linux-rdma@vger.kernel.org>,
	"linux-nvme@lists.infradead.org" <linux-nvme@lists.infradead.org>
Subject: [PATCH v2 2/7] dm: Use BLK_MQ_S_STOPPED instead of QUEUE_FLAG_STOPPED in blk-mq code
Date: Wed, 28 Sep 2016 17:02:23 -0700	[thread overview]
Message-ID: <43265806-b77f-b357-cbf1-1d05cf253f97@sandisk.com> (raw)
In-Reply-To: <f153ee47-e599-c333-92b0-d5da475012f3@sandisk.com>

Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Cc: Mike Snitzer <snitzer@redhat.com>
---
 drivers/md/dm-rq.c | 18 ++----------------
 1 file changed, 2 insertions(+), 16 deletions(-)

diff --git a/drivers/md/dm-rq.c b/drivers/md/dm-rq.c
index 182b679..f2c271a 100644
--- a/drivers/md/dm-rq.c
+++ b/drivers/md/dm-rq.c
@@ -75,12 +75,6 @@ static void dm_old_start_queue(struct request_queue *q)
 
 static void dm_mq_start_queue(struct request_queue *q)
 {
-	unsigned long flags;
-
-	spin_lock_irqsave(q->queue_lock, flags);
-	queue_flag_clear(QUEUE_FLAG_STOPPED, q);
-	spin_unlock_irqrestore(q->queue_lock, flags);
-
 	blk_mq_start_stopped_hw_queues(q, true);
 	blk_mq_kick_requeue_list(q);
 }
@@ -105,16 +99,8 @@ static void dm_old_stop_queue(struct request_queue *q)
 
 static void dm_mq_stop_queue(struct request_queue *q)
 {
-	unsigned long flags;
-
-	spin_lock_irqsave(q->queue_lock, flags);
-	if (blk_queue_stopped(q)) {
-		spin_unlock_irqrestore(q->queue_lock, flags);
+	if (blk_mq_queue_stopped(q))
 		return;
-	}
-
-	queue_flag_set(QUEUE_FLAG_STOPPED, q);
-	spin_unlock_irqrestore(q->queue_lock, flags);
 
 	/* Avoid that requeuing could restart the queue. */
 	blk_mq_cancel_requeue_work(q);
@@ -341,7 +327,7 @@ static void __dm_mq_kick_requeue_list(struct request_queue *q, unsigned long mse
 	unsigned long flags;
 
 	spin_lock_irqsave(q->queue_lock, flags);
-	if (!blk_queue_stopped(q))
+	if (!blk_mq_queue_stopped(q))
 		blk_mq_delay_kick_requeue_list(q, msecs);
 	spin_unlock_irqrestore(q->queue_lock, flags);
 }
-- 
2.10.0


WARNING: multiple messages have this Message-ID (diff)
From: bart.vanassche@sandisk.com (Bart Van Assche)
Subject: [PATCH v2 2/7] dm: Use BLK_MQ_S_STOPPED instead of QUEUE_FLAG_STOPPED in blk-mq code
Date: Wed, 28 Sep 2016 17:02:23 -0700	[thread overview]
Message-ID: <43265806-b77f-b357-cbf1-1d05cf253f97@sandisk.com> (raw)
In-Reply-To: <f153ee47-e599-c333-92b0-d5da475012f3@sandisk.com>

Signed-off-by: Bart Van Assche <bart.vanassche at sandisk.com>
Cc: Mike Snitzer <snitzer at redhat.com>
---
 drivers/md/dm-rq.c | 18 ++----------------
 1 file changed, 2 insertions(+), 16 deletions(-)

diff --git a/drivers/md/dm-rq.c b/drivers/md/dm-rq.c
index 182b679..f2c271a 100644
--- a/drivers/md/dm-rq.c
+++ b/drivers/md/dm-rq.c
@@ -75,12 +75,6 @@ static void dm_old_start_queue(struct request_queue *q)
 
 static void dm_mq_start_queue(struct request_queue *q)
 {
-	unsigned long flags;
-
-	spin_lock_irqsave(q->queue_lock, flags);
-	queue_flag_clear(QUEUE_FLAG_STOPPED, q);
-	spin_unlock_irqrestore(q->queue_lock, flags);
-
 	blk_mq_start_stopped_hw_queues(q, true);
 	blk_mq_kick_requeue_list(q);
 }
@@ -105,16 +99,8 @@ static void dm_old_stop_queue(struct request_queue *q)
 
 static void dm_mq_stop_queue(struct request_queue *q)
 {
-	unsigned long flags;
-
-	spin_lock_irqsave(q->queue_lock, flags);
-	if (blk_queue_stopped(q)) {
-		spin_unlock_irqrestore(q->queue_lock, flags);
+	if (blk_mq_queue_stopped(q))
 		return;
-	}
-
-	queue_flag_set(QUEUE_FLAG_STOPPED, q);
-	spin_unlock_irqrestore(q->queue_lock, flags);
 
 	/* Avoid that requeuing could restart the queue. */
 	blk_mq_cancel_requeue_work(q);
@@ -341,7 +327,7 @@ static void __dm_mq_kick_requeue_list(struct request_queue *q, unsigned long mse
 	unsigned long flags;
 
 	spin_lock_irqsave(q->queue_lock, flags);
-	if (!blk_queue_stopped(q))
+	if (!blk_mq_queue_stopped(q))
 		blk_mq_delay_kick_requeue_list(q, msecs);
 	spin_unlock_irqrestore(q->queue_lock, flags);
 }
-- 
2.10.0

  parent reply	other threads:[~2016-09-29  0:02 UTC|newest]

Thread overview: 77+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-09-28 23:57 [PATCH v2 0/7] Introduce blk_quiesce_queue() and blk_resume_queue() Bart Van Assche
2016-09-28 23:57 ` Bart Van Assche
2016-09-28 23:57 ` [PATCH v2 1/7] blk-mq: Introduce blk_mq_queue_stopped() Bart Van Assche
2016-09-28 23:57   ` Bart Van Assche
2016-10-05 17:50   ` Sagi Grimberg
2016-10-05 17:50     ` Sagi Grimberg
2016-10-11 16:40   ` Christoph Hellwig
2016-10-11 16:40     ` Christoph Hellwig
2016-09-28 23:59 ` [PATCH v2 4/7] blk-mq: Introduce blk_quiesce_queue() and blk_resume_queue() Bart Van Assche
2016-09-28 23:59   ` Bart Van Assche
2016-09-29  5:52   ` Hannes Reinecke
2016-09-29  5:52     ` Hannes Reinecke
2016-09-29  5:52     ` Hannes Reinecke
2016-09-29 21:51   ` Ming Lei
2016-09-29 21:51     ` Ming Lei
2016-09-29 21:51     ` Ming Lei
2016-09-30 15:55     ` Bart Van Assche
2016-09-30 15:55       ` Bart Van Assche
2016-10-01 22:56       ` Ming Lei
2016-10-01 22:56         ` Ming Lei
2016-10-01 22:56         ` Ming Lei
2016-10-05  4:16         ` Bart Van Assche
2016-10-05  4:16           ` Bart Van Assche
2016-10-05  4:32           ` Ming Lei
2016-10-05  4:32             ` Ming Lei
2016-10-05  4:32             ` Ming Lei
2016-10-05 14:46             ` Bart Van Assche
2016-10-05 14:46               ` Bart Van Assche
2016-10-05 16:11               ` Ming Lei
2016-10-05 16:11                 ` Ming Lei
2016-10-05 18:14           ` Sagi Grimberg
2016-10-05 18:14             ` Sagi Grimberg
2016-10-05 18:14             ` Sagi Grimberg
2016-10-05 19:05             ` Bart Van Assche
2016-10-05 19:05               ` Bart Van Assche
2016-10-05 19:10               ` Sagi Grimberg
2016-10-05 19:10                 ` Sagi Grimberg
2016-10-05 21:08                 ` Bart Van Assche
2016-10-05 21:08                   ` Bart Van Assche
2016-10-05 21:08                   ` Bart Van Assche
2016-10-05 22:49                   ` Ming Lei
2016-10-05 22:49                     ` Ming Lei
2016-10-05 22:49                     ` Ming Lei
2016-10-05 23:00                     ` Bart Van Assche
2016-10-05 23:00                       ` Bart Van Assche
2016-09-29  0:00 ` [PATCH v2 5/7] dm: Fix a race condition related to stopping and starting queues Bart Van Assche
2016-09-29  0:00   ` Bart Van Assche
2016-09-29  0:00   ` Bart Van Assche
2016-09-29  0:01 ` [PATCH v2 6/7] SRP transport: Port srp_wait_for_queuecommand() to scsi-mq Bart Van Assche
2016-09-29  0:01   ` Bart Van Assche
2016-09-29  5:54   ` Hannes Reinecke
2016-09-29  5:54     ` Hannes Reinecke
2016-10-05 17:38   ` Sagi Grimberg
2016-10-05 17:38     ` Sagi Grimberg
2016-10-05 17:38     ` Sagi Grimberg
2016-10-05 21:51     ` Bart Van Assche
2016-10-05 21:51       ` Bart Van Assche
2016-10-11 16:44       ` Christoph Hellwig
2016-10-11 16:44         ` Christoph Hellwig
2016-10-11 16:44         ` Christoph Hellwig
2016-09-29  0:01 ` [PATCH v2 7/7] [RFC] nvme: Fix a race condition Bart Van Assche
2016-09-29  0:01   ` Bart Van Assche
2016-10-05 17:40   ` Sagi Grimberg
2016-10-05 17:40     ` Sagi Grimberg
2016-10-11 16:46   ` Christoph Hellwig
2016-10-11 16:46     ` Christoph Hellwig
2016-10-12  0:41     ` Bart Van Assche
2016-10-12  0:41       ` Bart Van Assche
2016-09-29  0:02 ` Bart Van Assche [this message]
2016-09-29  0:02   ` [PATCH v2 2/7] dm: Use BLK_MQ_S_STOPPED instead of QUEUE_FLAG_STOPPED in blk-mq code Bart Van Assche
2016-09-29  0:02 ` [PATCH v2 3/7] [RFC] nvme: " Bart Van Assche
2016-09-29  0:02   ` Bart Van Assche
2016-10-05 17:43   ` Sagi Grimberg
2016-10-05 17:43     ` Sagi Grimberg
2016-10-05 17:43     ` Sagi Grimberg
  -- strict thread matches above, loose matches on Subject: below --
2016-09-28 23:45 [PATCH] scsi_dh_alua: Fix a reference counting bug Bart Van Assche
2016-09-28 23:58 ` [PATCH v2 2/7] dm: Use BLK_MQ_S_STOPPED instead of QUEUE_FLAG_STOPPED in blk-mq code Bart Van Assche
2016-09-29  5:53   ` Hannes Reinecke

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