diff options
| 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 | |
| parent | e01f91dff91c7b16a6e3faf2565017d497a73f83 (diff) | |
| download | linux-35fe0d12c8a3d5e45f297562732ddc9ba9dc58dd.tar.gz | |
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')
| -rw-r--r-- | drivers/nvme/host/core.c | 8 | ||||
| -rw-r--r-- | drivers/nvme/host/nvme.h | 16 |
2 files changed, 21 insertions, 3 deletions
diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c index 35311d343a13..4660505eded9 100644 --- a/drivers/nvme/host/core.c +++ b/drivers/nvme/host/core.c @@ -22,12 +22,12 @@ #include <linux/pm_qos.h> #include <asm/unaligned.h> -#define CREATE_TRACE_POINTS -#include "trace.h" - #include "nvme.h" #include "fabrics.h" +#define CREATE_TRACE_POINTS +#include "trace.h" + #define NVME_MINORS (1U << MINORBITS) unsigned int admin_timeout = 60; @@ -279,6 +279,8 @@ void nvme_complete_rq(struct request *req) return; } } + + nvme_trace_bio_complete(req, status); blk_mq_end_request(req, status); } EXPORT_SYMBOL_GPL(nvme_complete_rq); 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) { |