nvme-core: add cancel tagset helpers
Add nvme_cancel_tagset and nvme_cancel_admin_tagset for tear down and reconnection error handling. Signed-off-by: Chao Leng <lengchao@huawei.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
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2547906982
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@ -370,6 +370,26 @@ bool nvme_cancel_request(struct request *req, void *data, bool reserved)
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}
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EXPORT_SYMBOL_GPL(nvme_cancel_request);
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void nvme_cancel_tagset(struct nvme_ctrl *ctrl)
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{
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if (ctrl->tagset) {
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blk_mq_tagset_busy_iter(ctrl->tagset,
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nvme_cancel_request, ctrl);
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blk_mq_tagset_wait_completed_request(ctrl->tagset);
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}
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}
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EXPORT_SYMBOL_GPL(nvme_cancel_tagset);
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void nvme_cancel_admin_tagset(struct nvme_ctrl *ctrl)
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{
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if (ctrl->admin_tagset) {
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blk_mq_tagset_busy_iter(ctrl->admin_tagset,
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nvme_cancel_request, ctrl);
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blk_mq_tagset_wait_completed_request(ctrl->admin_tagset);
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}
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}
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EXPORT_SYMBOL_GPL(nvme_cancel_admin_tagset);
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bool nvme_change_ctrl_state(struct nvme_ctrl *ctrl,
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enum nvme_ctrl_state new_state)
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{
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@ -576,6 +576,8 @@ static inline bool nvme_is_aen_req(u16 qid, __u16 command_id)
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void nvme_complete_rq(struct request *req);
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bool nvme_cancel_request(struct request *req, void *data, bool reserved);
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void nvme_cancel_tagset(struct nvme_ctrl *ctrl);
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void nvme_cancel_admin_tagset(struct nvme_ctrl *ctrl);
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bool nvme_change_ctrl_state(struct nvme_ctrl *ctrl,
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enum nvme_ctrl_state new_state);
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bool nvme_wait_reset(struct nvme_ctrl *ctrl);
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