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nvme: core: switch to non_owner variant of start_freeze/unfreeze queue

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nvme_start_freeze() and nvme_unfreeze() may be called from same context,
so switch them to call non_owner variant of start_freeze/unfreeze queue.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/20241025003722.3630252-3-ming.lei@redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Ming Lei 2024-10-25 08:37:19 +08:00 committed by Jens Axboe
parent 8acdd0e7bf
commit 6b6f6c41c8
1 changed files with 7 additions and 2 deletions
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9
drivers/nvme/host/core.c
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@ -4864,7 +4864,7 @@ void nvme_unfreeze(struct nvme_ctrl *ctrl)
srcu_idx = srcu_read_lock(&ctrl->srcu);
list_for_each_entry_rcu(ns, &ctrl->namespaces, list)
blk_mq_unfreeze_queue(ns->queue);
blk_mq_unfreeze_queue_non_owner(ns->queue);
srcu_read_unlock(&ctrl->srcu, srcu_idx);
clear_bit(NVME_CTRL_FROZEN, &ctrl->flags);
}
@ -4906,7 +4906,12 @@ void nvme_start_freeze(struct nvme_ctrl *ctrl)
set_bit(NVME_CTRL_FROZEN, &ctrl->flags);
srcu_idx = srcu_read_lock(&ctrl->srcu);
list_for_each_entry_rcu(ns, &ctrl->namespaces, list)
blk_freeze_queue_start(ns->queue);
/*
* Typical non_owner use case is from pci driver, in which
* start_freeze is called from timeout work function, but
* unfreeze is done in reset work context
*/
blk_freeze_queue_start_non_owner(ns->queue);
srcu_read_unlock(&ctrl->srcu, srcu_idx);
}
EXPORT_SYMBOL_GPL(nvme_start_freeze);