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block: simplify disk shutdown

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Set the queue dying flag and call blk_mq_exit_queue from del_gendisk for
all disks that do not have separately allocated queues, and thus remove
the need to call blk_cleanup_queue for them.

Rename blk_cleanup_disk to blk_mq_destroy_queue to make it clear that
this function is intended only for separately allocated blk-mq queues.

This saves an extra queue freeze for devices without a separately
allocated queue.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Link: https://lore.kernel.org/r/20220619060552.1850436-6-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Christoph Hellwig
2022-06-19 08:05:51 +02:00
committed by Jens Axboe
parent 0e3534022f
commit 6f8191fdf4
34 changed files with 105 additions and 113 deletions
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12
drivers/nvme/target/loop.c
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@@ -266,8 +266,8 @@ static void nvme_loop_destroy_admin_queue(struct nvme_loop_ctrl *ctrl)
if (!test_and_clear_bit(NVME_LOOP_Q_LIVE, &ctrl->queues[0].flags))
return;
nvmet_sq_destroy(&ctrl->queues[0].nvme_sq);
blk_cleanup_queue(ctrl->ctrl.admin_q);
blk_cleanup_queue(ctrl->ctrl.fabrics_q);
blk_mq_destroy_queue(ctrl->ctrl.admin_q);
blk_mq_destroy_queue(ctrl->ctrl.fabrics_q);
blk_mq_free_tag_set(&ctrl->admin_tag_set);
}
@@ -283,7 +283,7 @@ static void nvme_loop_free_ctrl(struct nvme_ctrl *nctrl)
mutex_unlock(&nvme_loop_ctrl_mutex);
if (nctrl->tagset) {
blk_cleanup_queue(ctrl->ctrl.connect_q);
blk_mq_destroy_queue(ctrl->ctrl.connect_q);
blk_mq_free_tag_set(&ctrl->tag_set);
}
kfree(ctrl->queues);
@@ -410,9 +410,9 @@ static int nvme_loop_configure_admin_queue(struct nvme_loop_ctrl *ctrl)
out_cleanup_queue:
clear_bit(NVME_LOOP_Q_LIVE, &ctrl->queues[0].flags);
blk_cleanup_queue(ctrl->ctrl.admin_q);
blk_mq_destroy_queue(ctrl->ctrl.admin_q);
out_cleanup_fabrics_q:
blk_cleanup_queue(ctrl->ctrl.fabrics_q);
blk_mq_destroy_queue(ctrl->ctrl.fabrics_q);
out_free_tagset:
blk_mq_free_tag_set(&ctrl->admin_tag_set);
out_free_sq:
@@ -554,7 +554,7 @@ static int nvme_loop_create_io_queues(struct nvme_loop_ctrl *ctrl)
return 0;
out_cleanup_connect_q:
blk_cleanup_queue(ctrl->ctrl.connect_q);
blk_mq_destroy_queue(ctrl->ctrl.connect_q);
out_free_tagset:
blk_mq_free_tag_set(&ctrl->tag_set);
out_destroy_queues: