From 48517eefb20ec2d6595ebd77ae11f34b3540cd78 Mon Sep 17 00:00:00 2001 From: Wu Bo Date: Tue, 20 Sep 2022 17:32:19 +0800 Subject: 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 Signed-off-by: Wu Bo Signed-off-by: Martin K. Petersen --- drivers/scsi/scsi_error.c | 1 + drivers/scsi/scsi_sysfs.c | 2 ++ 2 files changed, 3 insertions(+) (limited to 'drivers/scsi') 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, -- cgit v1.2.3