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authorSagi Grimberg <sagi@grimberg.me>2017-07-02 15:40:17 +0300
committerSagi Grimberg <sagi@grimberg.me>2017-07-06 09:48:43 +0300
commitc1c0ffff3a99caf40c3bd21447135db459194123 (patch)
tree288ec49dcb39256adce141b341e5edbbb754b17c /drivers/nvme
parentf9c5af5f8ff14a31468546b9b1a876d537019e9a (diff)
nvme-loop: quiesce/unquiesce admin_q instead of start/stop its hw queues
unlike blk_mq_stop_hw_queues and blk_mq_start_stopped_hw_queues quiescing/unquiescing respects the submission path rcu grace. Reviewed-by: Ming Lei <ming.lei@redhat.com> Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Diffstat (limited to 'drivers/nvme')
-rw-r--r--drivers/nvme/target/loop.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/nvme/target/loop.c b/drivers/nvme/target/loop.c
index 3d51341e62ee..6a0b70685e77 100644
--- a/drivers/nvme/target/loop.c
+++ b/drivers/nvme/target/loop.c
@@ -434,9 +434,10 @@ static void nvme_loop_shutdown_ctrl(struct nvme_loop_ctrl *ctrl)
if (ctrl->ctrl.state == NVME_CTRL_LIVE)
nvme_shutdown_ctrl(&ctrl->ctrl);
- blk_mq_stop_hw_queues(ctrl->ctrl.admin_q);
+ blk_mq_quiesce_queue(ctrl->ctrl.admin_q);
blk_mq_tagset_busy_iter(&ctrl->admin_tag_set,
nvme_cancel_request, &ctrl->ctrl);
+ blk_mq_unquiesce_queue(ctrl->ctrl.admin_q);
nvme_loop_destroy_admin_queue(ctrl);
}