lkml.org 
[lkml]   [2021]   [Oct]   [9]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH] scsi: core: use eh_timeout to timeout start_unit command
Date
From: Chunguang Xu <brookxu@tencent.com>

In some abnormal scenarios, STU may timeout. The recovery time
of 30 seconds is relatively long. Now we need to adjusting
rq_timeout to adjust STU timeout value, but it will affect the
actual IO.

ptach 9728c081(make scsi_eh_try_stu use block timeout) uses
rq_timeout to timeout the STU command, but after pathc 0816c92(
Allow error handling timeout to be specified) eh_timeout will
init to SCSI_DEFAULT_EH_TIMEOUT, so it is more reasonable to
use eh_timeout as the timeout value of STU command. In this way,
we can uniformly control the recovery time through eh_timeout.

Signed-off-by: Chunguang Xu <brookxu@tencent.com>
---
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 b6c86cc..ec864d1 100644
--- a/drivers/scsi/scsi_error.c
+++ b/drivers/scsi/scsi_error.c
@@ -1404,7 +1404,7 @@ static int scsi_eh_try_stu(struct scsi_cmnd *scmd)
enum scsi_disposition rtn = NEEDS_RETRY;

for (i = 0; rtn == NEEDS_RETRY && i < 2; i++)
- rtn = scsi_send_eh_cmnd(scmd, stu_command, 6, scmd->device->request_queue->rq_timeout, 0);
+ rtn = scsi_send_eh_cmnd(scmd, stu_command, 6, scmd->device->eh_timeout, 0);

if (rtn == SUCCESS)
return 0;
--
1.8.3.1
\
 
 \ /
  Last update: 2021-10-09 10:53    [W:1.589 / U:0.268 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site