[RFC PATCH V2 13/17] SCSI: use the dedicated admin queue to send admin commands
From: Ming Lei <hidden>
Date: 2018-08-11 07:12:16
Subsystem:
scsi subsystem, the rest · Maintainers:
"James E.J. Bottomley", "Martin K. Petersen", Linus Torvalds
Now the per-host dedicated admin queue is ready, so use this queue to send admin commands only. Cc: Alan Stern <stern@rowland.harvard.edu> Cc: Christoph Hellwig <hch@lst.de> Cc: Bart Van Assche <redacted> Cc: Jianchao Wang <redacted> Cc: Hannes Reinecke <hare@suse.de> Cc: Johannes Thumshirn <redacted> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: "James E.J. Bottomley" <redacted> Cc: "Martin K. Petersen" <martin.petersen@oracle.com> Cc: linux-scsi@vger.kernel.org Signed-off-by: Ming Lei <redacted> --- drivers/scsi/scsi_lib.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index 89ca6e10e7f6..ebd36ae549e8 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c@@ -279,14 +279,14 @@ int __scsi_execute(struct scsi_device *sdev, const unsigned char *cmd, struct scsi_request *rq; int ret = DRIVER_ERROR << 24; - req = blk_get_request(sdev->request_queue, + req = blk_get_request(sdev->host->admin_q, data_direction == DMA_TO_DEVICE ? REQ_OP_SCSI_OUT : REQ_OP_SCSI_IN, BLK_MQ_REQ_PREEMPT); if (IS_ERR(req)) return ret; rq = scsi_req(req); - if (bufflen && blk_rq_map_kern(sdev->request_queue, req, + if (bufflen && blk_rq_map_kern(req->q, req, buffer, bufflen, GFP_NOIO)) goto out;
--
2.9.5