Merge branch 'for-4.11-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj...

[karo-tx-linux.git] / drivers / scsi / scsi_lib.c

diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index ba2286652ff647f285761e046f3699bed5c39eba..e5a2d590a104d5cf7e63c1a7acfb94d7639a51da 100644 (file)
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -496,7 +496,7 @@ static void scsi_run_queue(struct request_queue *q)
                scsi_starved_list_run(sdev->host);
 
        if (q->mq_ops)
-               blk_mq_start_stopped_hw_queues(q, false);
+               blk_mq_run_hw_queues(q, false);
        else
                blk_run_queue(q);
 }
@@ -667,7 +667,7 @@ static bool scsi_end_request(struct request *req, int error,
                    !list_empty(&sdev->host->starved_list))
                        kblockd_schedule_work(&sdev->requeue_work);
                else
-                       blk_mq_start_stopped_hw_queues(q, true);
+                       blk_mq_run_hw_queues(q, true);
        } else {
                unsigned long flags;
 
@@ -1974,7 +1974,7 @@ out:
        case BLK_MQ_RQ_QUEUE_BUSY:
                if (atomic_read(&sdev->device_busy) == 0 &&
                    !scsi_device_blocked(sdev))
-                       blk_mq_delay_queue(hctx, SCSI_QUEUE_DELAY);
+                       blk_mq_delay_run_hw_queue(hctx, SCSI_QUEUE_DELAY);
                break;
        case BLK_MQ_RQ_QUEUE_ERROR:
                /*
@@ -2932,6 +2932,8 @@ EXPORT_SYMBOL(scsi_target_resume);
 /**
  * scsi_internal_device_block - internal function to put a device temporarily into the SDEV_BLOCK state
  * @sdev:      device to block
+ * @wait:      Whether or not to wait until ongoing .queuecommand() /
+ *             .queue_rq() calls have finished.
  *
  * Block request made by scsi lld's to temporarily stop all
  * scsi commands on the specified device. May sleep.
@@ -2949,7 +2951,7 @@ EXPORT_SYMBOL(scsi_target_resume);
  * remove the rport mutex lock and unlock calls from srp_queuecommand().
  */
 int
-scsi_internal_device_block(struct scsi_device *sdev)
+scsi_internal_device_block(struct scsi_device *sdev, bool wait)
 {
        struct request_queue *q = sdev->request_queue;
        unsigned long flags;
@@ -2969,12 +2971,16 @@ scsi_internal_device_block(struct scsi_device *sdev)
         * request queue. 
         */
        if (q->mq_ops) {
-               blk_mq_quiesce_queue(q);
+               if (wait)
+                       blk_mq_quiesce_queue(q);
+               else
+                       blk_mq_stop_hw_queues(q);
        } else {
                spin_lock_irqsave(q->queue_lock, flags);
                blk_stop_queue(q);
                spin_unlock_irqrestore(q->queue_lock, flags);
-               scsi_wait_for_queuecommand(sdev);
+               if (wait)
+                       scsi_wait_for_queuecommand(sdev);
        }
 
        return 0;
@@ -3036,7 +3042,7 @@ EXPORT_SYMBOL_GPL(scsi_internal_device_unblock);
 static void
 device_block(struct scsi_device *sdev, void *data)
 {
-       scsi_internal_device_block(sdev);
+       scsi_internal_device_block(sdev, true);
 }
 
 static int