From a277654bafb51fb8b4cf23550f15926bb02536f4 Mon Sep 17 00:00:00 2001 From: Ming Lei Date: Thu, 14 Oct 2021 16:17:05 +0800 Subject: [PATCH] nvme: add APIs for stopping/starting admin queue Add two APIs for stopping and starting admin queue. Signed-off-by: Ming Lei Reviewed-by: Christoph Hellwig Link: https://lore.kernel.org/r/20211014081710.1871747-2-ming.lei@redhat.com Signed-off-by: Jens Axboe --- drivers/nvme/host/core.c | 12 ++++++++++++ drivers/nvme/host/nvme.h | 2 ++ 2 files changed, 14 insertions(+) diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c index 3109bdf..5fde5f6 100644 --- a/drivers/nvme/host/core.c +++ b/drivers/nvme/host/core.c @@ -4579,6 +4579,18 @@ void nvme_start_queues(struct nvme_ctrl *ctrl) } EXPORT_SYMBOL_GPL(nvme_start_queues); +void nvme_stop_admin_queue(struct nvme_ctrl *ctrl) +{ + blk_mq_quiesce_queue(ctrl->admin_q); +} +EXPORT_SYMBOL_GPL(nvme_stop_admin_queue); + +void nvme_start_admin_queue(struct nvme_ctrl *ctrl) +{ + blk_mq_unquiesce_queue(ctrl->admin_q); +} +EXPORT_SYMBOL_GPL(nvme_start_admin_queue); + void nvme_sync_io_queues(struct nvme_ctrl *ctrl) { struct nvme_ns *ns; diff --git a/drivers/nvme/host/nvme.h b/drivers/nvme/host/nvme.h index ef2467b..e7af008 100644 --- a/drivers/nvme/host/nvme.h +++ b/drivers/nvme/host/nvme.h @@ -679,6 +679,8 @@ void nvme_complete_async_event(struct nvme_ctrl *ctrl, __le16 status, void nvme_stop_queues(struct nvme_ctrl *ctrl); void nvme_start_queues(struct nvme_ctrl *ctrl); +void nvme_stop_admin_queue(struct nvme_ctrl *ctrl); +void nvme_start_admin_queue(struct nvme_ctrl *ctrl); void nvme_kill_queues(struct nvme_ctrl *ctrl); void nvme_sync_queues(struct nvme_ctrl *ctrl); void nvme_sync_io_queues(struct nvme_ctrl *ctrl); -- 2.7.4