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Subject[PATCH v4 0/3] SCSI: Fix issues between removing device and error handle
Date
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


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