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| author | Hannes Reinecke <hare@suse.de> | 2019-07-24 15:47:55 +0200 |
|---|---|---|
| committer | Sagi Grimberg <sagi@grimberg.me> | 2019-08-29 12:55:02 -0700 |
| commit | 35fe0d12c8a3d5e45f297562732ddc9ba9dc58dd (patch) | |
| tree | e19a68990be4415ae214ae52234f839ae9b4ca51 /drivers/nvme/host/nvme.h | |
| parent | e01f91dff91c7b16a6e3faf2565017d497a73f83 (diff) | |
| download | lwn-35fe0d12c8a3d5e45f297562732ddc9ba9dc58dd.tar.gz lwn-35fe0d12c8a3d5e45f297562732ddc9ba9dc58dd.zip | |
nvme: trace bio completion
When native multipathing is enabled we cannot enable blktrace for
the underlying paths, so any completion is never traced.
Signed-off-by: Hannes Reinecke <hare@suse.com>
[fixed-up by Mikhail for non-multipath-build]
Signed-off-by: Mikhail Skorzhinskii <mskorzhinskiy@solarflare.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Diffstat (limited to 'drivers/nvme/host/nvme.h')
| -rw-r--r-- | drivers/nvme/host/nvme.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/nvme/host/nvme.h b/drivers/nvme/host/nvme.h index 7c86e4bcd271..9656f863ea40 100644 --- a/drivers/nvme/host/nvme.h +++ b/drivers/nvme/host/nvme.h @@ -16,6 +16,8 @@ #include <linux/fault-inject.h> #include <linux/rcupdate.h> +#include <trace/events/block.h> + extern unsigned int nvme_io_timeout; #define NVME_IO_TIMEOUT (nvme_io_timeout * HZ) @@ -511,6 +513,16 @@ static inline void nvme_mpath_check_last_path(struct nvme_ns *ns) kblockd_schedule_work(&head->requeue_work); } +static inline void nvme_trace_bio_complete(struct request *req, + blk_status_t status) +{ + struct nvme_ns *ns = req->q->queuedata; + + if (req->cmd_flags & REQ_NVME_MPATH) + trace_block_bio_complete(ns->head->disk->queue, + req->bio, status); +} + extern struct device_attribute dev_attr_ana_grpid; extern struct device_attribute dev_attr_ana_state; extern struct device_attribute subsys_attr_iopolicy; @@ -554,6 +566,10 @@ static inline void nvme_mpath_clear_current_path(struct nvme_ns *ns) static inline void nvme_mpath_check_last_path(struct nvme_ns *ns) { } +static inline void nvme_trace_bio_complete(struct request *req, + blk_status_t status) +{ +} static inline int nvme_mpath_init(struct nvme_ctrl *ctrl, struct nvme_id_ctrl *id) { |