diff mbox series

[v2,4/4] scsi: set shost as hctx driver_data

Message ID 20201203034100.29716-5-kashyap.desai@broadcom.com
State New
Headers show
Series io_uring iopoll in scsi layer | expand

Commit Message

Kashyap Desai Dec. 3, 2020, 3:41 a.m. UTC 
hctx->driver_data is not set for SCSI currently.
Separately set hctx->driver_data = shost.

Suggested-by: John Garry <john.garry@huawei.com>
Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com>
---
 drivers/scsi/scsi_lib.c | 19 +++++++++++++------
 1 file changed, 13 insertions(+), 6 deletions(-)
diff mbox series

Patch

diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index 8675900ccc27..892315c21b70 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -1789,9 +1789,7 @@  static void scsi_mq_exit_request(struct blk_mq_tag_set *set, struct request *rq,
 
 static int scsi_mq_poll(struct blk_mq_hw_ctx *hctx)
 {
-	struct request_queue *q = hctx->queue;
-	struct scsi_device *sdev = q->queuedata;
-	struct Scsi_Host *shost = sdev->host;
+	struct Scsi_Host *shost = hctx->driver_data;
 
 	if (shost->hostt->mq_poll)
 		return shost->hostt->mq_poll(shost, hctx->queue_num);
@@ -1799,6 +1797,15 @@  static int scsi_mq_poll(struct blk_mq_hw_ctx *hctx)
 	return 0;
 }
 
+static int scsi_init_hctx(struct blk_mq_hw_ctx *hctx, void *data,
+			  unsigned int hctx_idx)
+{
+	struct Scsi_Host *shost = data;
+
+	hctx->driver_data = shost;
+	return 0;
+}
+
 static int scsi_map_queues(struct blk_mq_tag_set *set)
 {
 	struct Scsi_Host *shost = container_of(set, struct Scsi_Host, tag_set);
@@ -1866,15 +1873,14 @@  static const struct blk_mq_ops scsi_mq_ops_no_commit = {
 	.cleanup_rq	= scsi_cleanup_rq,
 	.busy		= scsi_mq_lld_busy,
 	.map_queues	= scsi_map_queues,
+	.init_hctx	= scsi_init_hctx,
 	.poll		= scsi_mq_poll,
 };
 
 
 static void scsi_commit_rqs(struct blk_mq_hw_ctx *hctx)
 {
-	struct request_queue *q = hctx->queue;
-	struct scsi_device *sdev = q->queuedata;
-	struct Scsi_Host *shost = sdev->host;
+	struct Scsi_Host *shost = hctx->driver_data;
 
 	shost->hostt->commit_rqs(shost, hctx->queue_num);
 }
@@ -1895,6 +1901,7 @@  static const struct blk_mq_ops scsi_mq_ops = {
 	.cleanup_rq	= scsi_cleanup_rq,
 	.busy		= scsi_mq_lld_busy,
 	.map_queues	= scsi_map_queues,
+	.init_hctx	= scsi_init_hctx,
 	.poll		= scsi_mq_poll,
 };