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nvme: only set reserved_tags in nvme_alloc_io_tag_set for fabrics controllers

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[ Upstream commit b794d1c2ad ]

The reserved_tags are only needed for fabrics controllers.  Right now only
fabrics drivers call this helper, so this is harmless, but we'll use it
in the PCIe driver soon.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Stable-dep-of: de105068fe ("nvme: fix reconnection fail due to reserved tag allocation")
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Christoph Hellwig 2022-11-30 17:27:07 +01:00 committed by Sasha Levin
parent 1ed222ca73
commit cb8ae8e5ec
1 changed files with 2 additions and 1 deletions
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3
drivers/nvme/host/core.c
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@ -5029,7 +5029,8 @@ int nvme_alloc_io_tag_set(struct nvme_ctrl *ctrl, struct blk_mq_tag_set *set,
memset(set, 0, sizeof(*set));
set->ops = ops;
set->queue_depth = ctrl->sqsize + 1;
set->reserved_tags = NVMF_RESERVED_TAGS;
if (ctrl->ops->flags & NVME_F_FABRICS)
set->reserved_tags = NVMF_RESERVED_TAGS;
set->numa_node = ctrl->numa_node;
set->flags = BLK_MQ_F_SHOULD_MERGE;
if (ctrl->ops->flags & NVME_F_BLOCKING)