diff options
| author | Bart Van Assche <bart.vanassche@sandisk.com> | 2017-06-02 14:21:56 -0700 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2017-06-12 20:55:59 -0400 |
| commit | 66483a4a9f34427e3d6ec87d8e583f5d2a7cbb76 (patch) | |
| tree | 84adbd5a27b1c5af45c56f13c6e7634861cd9d72 /drivers/scsi/scsi_lib.c | |
| parent | 0db6ca8a5e1ea585795db3643ec7d50fc8cb1aff (diff) | |
| download | linux-stable-66483a4a9f34427e3d6ec87d8e583f5d2a7cbb76.tar.gz linux-stable-66483a4a9f34427e3d6ec87d8e583f5d2a7cbb76.tar.bz2 linux-stable-66483a4a9f34427e3d6ec87d8e583f5d2a7cbb76.zip | |
scsi: Introduce scsi_start_queue()
This patch does not change any functionality.
Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Cc: Israel Rukshin <israelr@mellanox.com>
Cc: Max Gurtovoy <maxg@mellanox.com>
Cc: Benjamin Block <bblock@linux.vnet.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/scsi_lib.c')
| -rw-r--r-- | drivers/scsi/scsi_lib.c | 25 |
1 files changed, 15 insertions, 10 deletions
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c index 4b0bac3ac6ab..ed744668b984 100644 --- a/drivers/scsi/scsi_lib.c +++ b/drivers/scsi/scsi_lib.c @@ -3031,6 +3031,20 @@ static int scsi_internal_device_block(struct scsi_device *sdev) return err; } +void scsi_start_queue(struct scsi_device *sdev) +{ + struct request_queue *q = sdev->request_queue; + unsigned long flags; + + if (q->mq_ops) { + blk_mq_start_stopped_hw_queues(q, false); + } else { + spin_lock_irqsave(q->queue_lock, flags); + blk_start_queue(q); + spin_unlock_irqrestore(q->queue_lock, flags); + } +} + /** * scsi_internal_device_unblock_nowait - resume a device after a block request * @sdev: device to resume @@ -3049,9 +3063,6 @@ static int scsi_internal_device_block(struct scsi_device *sdev) int scsi_internal_device_unblock_nowait(struct scsi_device *sdev, enum scsi_device_state new_state) { - struct request_queue *q = sdev->request_queue; - unsigned long flags; - /* * Try to transition the scsi device to SDEV_RUNNING or one of the * offlined states and goose the device queue if successful. @@ -3069,13 +3080,7 @@ int scsi_internal_device_unblock_nowait(struct scsi_device *sdev, sdev->sdev_state != SDEV_OFFLINE) return -EINVAL; - if (q->mq_ops) { - blk_mq_start_stopped_hw_queues(q, false); - } else { - spin_lock_irqsave(q->queue_lock, flags); - blk_start_queue(q); - spin_unlock_irqrestore(q->queue_lock, flags); - } + scsi_start_queue(sdev); return 0; } |