Commit a277654b authored by Ming Lei's avatar Ming Lei Committed by Jens Axboe
Browse files

nvme: add APIs for stopping/starting admin queue 



Add two APIs for stopping and starting admin queue.

Signed-off-by: default avatarMing Lei <ming.lei@redhat.com>
Reviewed-by: default avatarChristoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20211014081710.1871747-2-ming.lei@redhat.com


Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent 2fc428f6

drivers/nvme/host/core.c

+12 −0
Original line number Diff line number Diff line
@@ -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;

drivers/nvme/host/nvme.h

+2 −0
Original line number Diff line number Diff line
@@ -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);