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nvme-fc: Add BLK_MQ_F_NO_SCHED flag to admin tag set 

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: Max Gurtovoy <maxg@mellanox.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: James Smart  <james.smart@broadcom.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Israel Rukshin 2017-10-18 12:38:25 +00:00 committed by Christoph Hellwig
parent 94f29d4f78
commit 5a22e2bf44
1 changed files with 1 additions and 0 deletions
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1
drivers/nvme/host/fc.c
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@ -2853,6 +2853,7 @@ nvme_fc_init_ctrl(struct device *dev, struct nvmf_ctrl_options *opts,
ctrl->admin_tag_set.driver_data = ctrl; ctrl->admin_tag_set.driver_data = ctrl;
ctrl->admin_tag_set.nr_hw_queues = 1; ctrl->admin_tag_set.nr_hw_queues = 1;
ctrl->admin_tag_set.timeout = ADMIN_TIMEOUT; ctrl->admin_tag_set.timeout = ADMIN_TIMEOUT;
ctrl->admin_tag_set.flags = BLK_MQ_F_NO_SCHED;
ret = blk_mq_alloc_tag_set(&ctrl->admin_tag_set); ret = blk_mq_alloc_tag_set(&ctrl->admin_tag_set);
if (ret) if (ret)