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authorKashyap Desai <kashyap.desai@broadcom.com>2021-02-15 08:40:48 +0100
committerMartin K. Petersen <martin.petersen@oracle.com>2021-03-04 23:37:03 +0100
commit4309ea74b0c30f00c6a93b94db018ebb416dc14c (patch)
treeed674015bfc8c01d64a791afacbb4d5ff6cbb6cc /drivers/scsi/scsi_lib.c
parentscsi: scsi_debug: Add new defer type for mq_poll (diff)
downloadlinux-4309ea74b0c30f00c6a93b94db018ebb416dc14c.tar.xz
linux-4309ea74b0c30f00c6a93b94db018ebb416dc14c.zip
scsi: core: Set shost as hctx driver_data
hctx->driver_data is not set for SCSI currently. Set hctx->driver_data = shost. Link: https://lore.kernel.org/r/20210215074048.19424-6-kashyap.desai@broadcom.com Suggested-by: John Garry <john.garry@huawei.com> Reviewed-by: John Garry <john.garry@huawei.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.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.c19
1 files changed, 13 insertions, 6 deletions
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index 09d09ef9d193..4bcd744a5c85 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -1813,9 +1813,7 @@ 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);
@@ -1823,6 +1821,15 @@ 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);
@@ -1890,6 +1897,7 @@ 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,
.set_rq_budget_token = scsi_mq_set_rq_budget_token,
.get_rq_budget_token = scsi_mq_get_rq_budget_token,
@@ -1898,9 +1906,7 @@ static const struct blk_mq_ops scsi_mq_ops_no_commit = {
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);
}
@@ -1921,6 +1927,7 @@ 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,
.set_rq_budget_token = scsi_mq_set_rq_budget_token,
.get_rq_budget_token = scsi_mq_get_rq_budget_token,