[PATCH 2/6] nvme-core: introduce complete failed request
From: Chao Leng <hidden>
Date: 2021-01-05 07:20:33
Also in:
linux-block
Subsystem:
nvm express driver, the rest · Maintainers:
Keith Busch, Jens Axboe, Christoph Hellwig, Sagi Grimberg, Linus Torvalds
When a request is queued failed, if the fail status is not BLK_STS_RESOURCE, BLK_STS_DEV_RESOURCE, BLK_STS_ZONE_RESOURCE, the request is need to complete with nvme_complete_rq in queue_rq. So introduce nvme_try_complete_failed_req. The request is needed to complete with NVME_SC_HOST_PATH_ERROR in nvmf_fail_nonready_command and queue_rq. So introduce nvme_complete_failed_req. For details, see the subsequent patches. Signed-off-by: Chao Leng <redacted> --- drivers/nvme/host/nvme.h | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+)
diff --git a/drivers/nvme/host/nvme.h b/drivers/nvme/host/nvme.h
index bfcedfa4b057..1a0bddb9158f 100644
--- a/drivers/nvme/host/nvme.h
+++ b/drivers/nvme/host/nvme.h@@ -649,6 +649,24 @@ void nvme_put_ns_from_disk(struct nvme_ns_head *head, int idx); extern const struct attribute_group *nvme_ns_id_attr_groups[]; extern const struct block_device_operations nvme_ns_head_ops; +static inline void nvme_complete_failed_req(struct request *req) +{ + nvme_req(req)->status = NVME_SC_HOST_PATH_ERROR; + blk_mq_set_request_complete(req); + nvme_complete_rq(req); +} + +static inline blk_status_t nvme_try_complete_failed_req(struct request *req, + blk_status_t ret) +{ + if (ret == BLK_STS_RESOURCE || ret == BLK_STS_DEV_RESOURCE || + ret == BLK_STS_ZONE_RESOURCE) + return ret; + + nvme_complete_failed_req(req); + return BLK_STS_OK; +} + #ifdef CONFIG_NVME_MULTIPATH static inline bool nvme_ctrl_use_ana(struct nvme_ctrl *ctrl) {
--
2.16.4
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