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Salomon Dushimirimana 74b3fedc57 scsi: sd: Make sd shutdown issue START STOP UNIT appropriately 
[ Upstream commit 8e48727c26 ]

Commit aa3998dbeb ("ata: libata-scsi: Disable scsi device
manage_system_start_stop") enabled libata EH to manage device power mode
trasitions for system suspend/resume and removed the flag from
ata_scsi_dev_config. However, since the sd_shutdown() function still
relies on the manage_system_start_stop flag, a spin-down command is not
issued to the disk with command "echo 1 > /sys/block/sdb/device/delete"

sd_shutdown() can be called for both system/runtime start stop
operations, so utilize the manage_run_time_start_stop flag set in the
ata_scsi_dev_config and issue a spin-down command during disk removal
when the system is running. This is in addition to when the system is
powering off and manage_shutdown flag is set. The
manage_system_start_stop flag will still be used for drivers that still
set the flag.

Fixes: aa3998dbeb ("ata: libata-scsi: Disable scsi device manage_system_start_stop")
Signed-off-by: Salomon Dushimirimana <salomondush@google.com>
Link: https://lore.kernel.org/r/20250724214520.112927-1-salomondush@google.com
Tested-by: Damien Le Moal <dlemoal@kernel.org>
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2025-08-15 12:14:03 +02:00
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README 

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.