From: Israel Rukshin <israelr@mellanox.com>
Date: Wed, 18 Oct 2017 12:38:24 +0000
Subject: nvme-rdma: Add BLK_MQ_F_NO_SCHED flag to admin tag set
Patch-mainline: v4.15-rc1
Git-commit: 94f29d4f7808e3a495fda8c5d337fc4ac4037ce7
References: FATE#323952, FATE#322506

Since commit b86dd81
"block: get rid of blk-mq default scheduler choice Kconfig entries",
when setting nr_hw_queues to 1 the admin tag set uses mq-deadline scheduler.
This flag is useful for admin queues that aren't used for normal IO.

Signed-off-by: Israel Rukshin <israelr@mellanox.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Max Gurtovoy <maxg@mellanox.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Johannes Thumshirn <jthumshirn@suse.de>
---
 drivers/nvme/host/rdma.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/nvme/host/rdma.c
+++ b/drivers/nvme/host/rdma.c
@@ -699,6 +699,7 @@ static struct blk_mq_tag_set *nvme_rdma_
 		set->driver_data = ctrl;
 		set->nr_hw_queues = 1;
 		set->timeout = ADMIN_TIMEOUT;
+		set->flags = BLK_MQ_F_NO_SCHED;
 	} else {
 		set = &ctrl->tag_set;
 		memset(set, 0, sizeof(*set));