shinys000114/linux
1
0
Fork 0
mirror of https://github.com/hardkernel/linux.git synced 2026-06-07 11:26:02 +09:00
Code Issues Packages Projects Releases Wiki Activity

scsi: storvsc: Fix scsi_cmd error assignments in storvsc_handle_error

Browse Source 
[ Upstream commit d1b8b2391c ]

When an I/O is returned with an srb_status of SRB_STATUS_INVALID_LUN
which has zero good_bytes it must be assigned an error. Otherwise the
I/O will be continuously requeued and will cause a deadlock in the case
where disks are being hot added and removed. sd_probe_async will wait
forever for its I/O to complete while holding scsi_sd_probe_domain.

Also returning the default error of DID_TARGET_FAILURE causes multipath
to not retry the I/O resulting in applications receiving I/O errors
before a failover can occur.

Signed-off-by: Cathy Avery <cavery@redhat.com>
Signed-off-by: Long Li <longli@microsoft.com>
Reviewed-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Cathy Avery
2017-12-19 13:32:48 -05:00
committed by Greg Kroah-Hartman
parent 9d0858e712
commit 6358cb4c5b
1 changed files with 2 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/scsi/storvsc_drv.c
View File

@@ -915,10 +915,11 @@ static void storvsc_handle_error(struct vmscsi_request *vm_srb,
case TEST_UNIT_READY:
break;
default:
set_host_byte(scmnd, DID_TARGET_FAILURE);
set_host_byte(scmnd, DID_ERROR);
}
break;
case SRB_STATUS_INVALID_LUN:
set_host_byte(scmnd, DID_NO_CONNECT);
do_work = true;
process_err_fn = storvsc_remove_lun;
break;