From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:58648 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932090AbeB1PVr (ORCPT ); Wed, 28 Feb 2018 10:21:47 -0500 Subject: Patch "scsi: storvsc: Fix scsi_cmd error assignments in storvsc_handle_error" has been added to the 4.4-stable tree To: cavery@redhat.com, alexander.levin@microsoft.com, gregkh@linuxfoundation.org, longli@microsoft.com, martin.petersen@oracle.com, stephen@networkplumber.org Cc: , From: Date: Wed, 28 Feb 2018 16:20:59 +0100 Message-ID: <15198312599841@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org List-ID: This is a note to let you know that I've just added the patch titled scsi: storvsc: Fix scsi_cmd error assignments in storvsc_handle_error to the 4.4-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: scsi-storvsc-fix-scsi_cmd-error-assignments-in-storvsc_handle_error.patch and it can be found in the queue-4.4 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From foo@baz Wed Feb 28 16:19:30 CET 2018 From: Cathy Avery Date: Tue, 19 Dec 2017 13:32:48 -0500 Subject: scsi: storvsc: Fix scsi_cmd error assignments in storvsc_handle_error From: Cathy Avery [ Upstream commit d1b8b2391c24751e44f618fcf86fb55d9a9247fd ] 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 Signed-off-by: Long Li Reviewed-by: Stephen Hemminger Signed-off-by: Martin K. Petersen Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman --- drivers/scsi/storvsc_drv.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) --- a/drivers/scsi/storvsc_drv.c +++ b/drivers/scsi/storvsc_drv.c @@ -890,10 +890,11 @@ static void storvsc_handle_error(struct 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; Patches currently in stable-queue which might be from cavery@redhat.com are queue-4.4/scsi-storvsc-fix-scsi_cmd-error-assignments-in-storvsc_handle_error.patch