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Bart Van Assche authored
Although most calls of scsi_device_put() happen from non-atomic context, alua_rtpg_queue() calls this function from atomic context if alua_rtpg_queue() itself is called from atomic context. alua_rtpg_queue() is always called from contexts where the caller must hold at least one reference to the scsi device in question. This means that the reference taken by alua_rtpg_queue() itself can't be the last one, and thus can be dropped without entering the code path in which scsi_device_put() might actually sleep. Hence move the might_sleep() annotation from scsi_device_put() into scsi_device_dev_release(). [1] https://lore.kernel.org/linux-scsi/b49e37d5-edfb-4c56-3eeb-62c7d5855c00@linux.ibm.com/ [2] https://lore.kernel.org/linux-scsi/55c35e64-a7d4-9072-46fd-e8eae6a90e96@linux.ibm.com/ Note: a significant part of the above description was written by Martin Wilck. Fixes: f93ed747 ("scsi: core: Release SCSI devices synchronously") Cc: Martin Wilck <mwilck@suse.com> Cc: Steffen Maier <maier@linux.ibm.com> Cc: Hannes Reinecke <hare@suse.de> Cc: Sachin Sant <sachinp@linux.ibm.com> Cc: Benjamin Block <bblock@linux.ibm.com> Reported-by: Steffen Maier <maier@linux.ibm.com> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Reviewed-by: Martin Wilck <mwilck@suse.com> Link: https://lore.kernel.org/r/20230125194311.249553-1-bvanassche@acm.orgSigned-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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