nvme: introduce nvme_reinit_tagset

Move blk_mq_reinit_tagset from blk-mq to nvme core
as the only user of it. Current transports that use
it (rdma, fc) simply implement .reinit_request op.

This patch does not change any functionality.

Reviewed-by: Jens Axboe <axboe@kernel.dk>
Reviewed-by: Max Gurtovoy <maxg@mellanox.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>

1 files changed, 10 insertions, 0 deletions

diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index 573cc3b59bfa..c95155696741 100644
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -2934,6 +2934,16 @@ void nvme_start_queues(struct nvme_ctrl *ctrl)
 }
 EXPORT_SYMBOL_GPL(nvme_start_queues);
 
+int nvme_reinit_tagset(struct nvme_ctrl *ctrl, struct blk_mq_tag_set *set)
+{
+	if (!ctrl->ops->reinit_request)
+		return 0;
+
+	return blk_mq_tagset_iter(set, set->driver_data,
+			ctrl->ops->reinit_request);
+}
+EXPORT_SYMBOL_GPL(nvme_reinit_tagset);
+
 int __init nvme_core_init(void)
 {
 	int result;