diff options
| author | Wu Bo <wubo40@huawei.com> | 2022-09-20 12:32:19 +0300 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2022-09-25 20:25:34 +0300 |
| commit | 48517eefb20ec2d6595ebd77ae11f34b3540cd78 (patch) | |
| tree | e801283900a81bd7e19aaa53368c246d5214c193 | |
| parent | 592642e6b11e620e4b43189f8072752429fc8dc3 (diff) | |
| download | linux-48517eefb20ec2d6595ebd77ae11f34b3540cd78.tar.xz | |
scsi: core: Add I/O timeout count for SCSI device
Currently struct scsi_device maintains counters for requests, completions,
and errors but is missing a counter for timeouts.
For better tracking of timeouts, add a suitable counter.
Link: https://lore.kernel.org/r/1663666339-17560-1-git-send-email-wubo40@huawei.com
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Wu Bo <wubo40@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| -rw-r--r-- | drivers/scsi/scsi_error.c | 1 | ||||
| -rw-r--r-- | drivers/scsi/scsi_sysfs.c | 2 | ||||
| -rw-r--r-- | include/scsi/scsi_device.h | 1 |
3 files changed, 4 insertions, 0 deletions
diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c index b5fa2aad05f9..16bd0adc2339 100644 --- a/drivers/scsi/scsi_error.c +++ b/drivers/scsi/scsi_error.c @@ -334,6 +334,7 @@ enum blk_eh_timer_return scsi_timeout(struct request *req) trace_scsi_dispatch_cmd_timeout(scmd); scsi_log_completion(scmd, TIMEOUT_ERROR); + atomic_inc(&scmd->device->iotmo_cnt); if (host->eh_deadline != -1 && !host->last_reset) host->last_reset = jiffies; diff --git a/drivers/scsi/scsi_sysfs.c b/drivers/scsi/scsi_sysfs.c index 9dad2fd5297f..72e702c77c0f 100644 --- a/drivers/scsi/scsi_sysfs.c +++ b/drivers/scsi/scsi_sysfs.c @@ -970,6 +970,7 @@ static DEVICE_ATTR(field, S_IRUGO, show_iostat_##field, NULL) show_sdev_iostat(iorequest_cnt); show_sdev_iostat(iodone_cnt); show_sdev_iostat(ioerr_cnt); +show_sdev_iostat(iotmo_cnt); static ssize_t sdev_show_modalias(struct device *dev, struct device_attribute *attr, char *buf) @@ -1289,6 +1290,7 @@ static struct attribute *scsi_sdev_attrs[] = { &dev_attr_iorequest_cnt.attr, &dev_attr_iodone_cnt.attr, &dev_attr_ioerr_cnt.attr, + &dev_attr_iotmo_cnt.attr, &dev_attr_modalias.attr, &dev_attr_queue_depth.attr, &dev_attr_queue_type.attr, diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h index 3113471ca375..78039d1ec405 100644 --- a/include/scsi/scsi_device.h +++ b/include/scsi/scsi_device.h @@ -231,6 +231,7 @@ struct scsi_device { atomic_t iorequest_cnt; atomic_t iodone_cnt; atomic_t ioerr_cnt; + atomic_t iotmo_cnt; struct device sdev_gendev, sdev_dev; |