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From: Wenchao Hao <haowenchao2@huawei.com>
To: "James E . J . Bottomley" <jejb@linux.ibm.com>, "Martin K . Petersen"
	<martin.petersen@oracle.com>, <linux-scsi@vger.kernel.org>,
	<linux-kernel@vger.kernel.org>
CC: Wenchao Hao <haowenchao2@huawei.com>, <louhongxiang@huawei.com>
Subject: [PATCH v4 0/3] SCSI: Fix issues between removing device and error handle
Date: Thu, 7 Mar 2024 22:43:08 +0800
Message-ID: <20240307144311.73735-1-haowenchao2@huawei.com>
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I am testing SCSI error handle with my previous scsi_debug error
injection patches, and found some issues when removing device and
error handler happened together.

These issues are triggered because devices in removing would be skipped
when calling shost_for_each_device().

The issues are found:
1. statistic info printed at beginning of scsi_error_handler is wrong
2. device reset is not triggered

V4:
 - Remove the forth patch which fix IO hang when device removing
   becaust the issue is fixed by commit '6df0e077d76bd (scsi: core:
   Kick the requeue list after inserting when flushing)'

V3:
  - Update patch description
  - Update comments of functions added

V2:
  - Fix IO hang by run all devices' queue after error handler
  - Do not modify shost_for_each_device() directly but add a new
    helper to iterate devices but do not skip devices in removing

Wenchao Hao (3):
  scsi: core: Add new helper to iterate all devices of host
  scsi: scsi_error: Fix wrong statistic when print error info
  scsi: scsi_error: Fix device reset is not triggered

 drivers/scsi/scsi.c        | 46 ++++++++++++++++++++++++++------------
 drivers/scsi/scsi_error.c  |  4 ++--
 include/scsi/scsi_device.h | 25 ++++++++++++++++++---
 3 files changed, 56 insertions(+), 19 deletions(-)

-- 
2.32.0