On 6/5/24 11:17, Wenchao Hao wrote:
shost_for_each_device() would skip devices which is in progress of removing, so commands of these devices would be ignored in scsi_eh_prt_fail_stats(). Fix this issue by using shost_for_each_device_include_deleted() to iterate devices in scsi_eh_prt_fail_stats(). Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: Wenchao Hao <haowenchao22@xxxxxxxxx> --- drivers/scsi/scsi_error.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c index 612489afe8d2..a61fd8af3b1f 100644 --- a/drivers/scsi/scsi_error.c +++ b/drivers/scsi/scsi_error.c @@ -409,7 +409,7 @@ static inline void scsi_eh_prt_fail_stats(struct Scsi_Host *shost, int cmd_cancel = 0; int devices_failed = 0;- shost_for_each_device(sdev, shost) {+ shost_for_each_device_include_deleted(sdev, shost) { list_for_each_entry(scmd, work_q, eh_entry) { if (scmd->device == sdev) { ++total_failures;
That is wrong. We should rather add a failure counter to the SCSI host, and have the scsi device increase it every time a failure occurs.
Then we can avoid this loop completely. Cheers, Hannes -- Dr. Hannes Reinecke Kernel Storage Architect hare@xxxxxxx +49 911 74053 688 SUSE Software Solutions GmbH, Frankenstr. 146, 90461 Nürnberg HRB 36809 (AG Nürnberg), GF: I. Totev, A. McDonald, W. Knoblich
