Bart Van Assche 50759b881e scsi: device_handler: alua: Call scsi_device_put() from non-atomic context ... Since commit f93ed747e2 ("scsi: core: Release SCSI devices synchronously"), scsi_device_put() might sleep. Avoid calling it from alua_rtpg_queue() with the pg_lock held. The lock only pretects h->pg, anyway. To avoid the pg being freed under us, because of a race with another thread, take a temporary reference. In alua_rtpg_queue(), verify that the pg still belongs to the sdev being passed before actually queueing the RTPG. This patch fixes the following smatch warning: drivers/scsi/device_handler/scsi_dh_alua.c:1013 alua_rtpg_queue() warn: sleeping in atomic context alua_check_vpd() <- disables preempt -> alua_rtpg_queue() -> scsi_device_put() Cc: Martin Wilck <mwilck@suse.com> Cc: Hannes Reinecke <hare@suse.de> Cc: Sachin Sant <sachinp@linux.ibm.com> Cc: Benjamin Block <bblock@linux.ibm.com> Suggested-by: Martin Wilck <mwilck@suse.com> Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Link: https://lore.kernel.org/r/20221117183626.2656196-3-bvanassche@acm.org Tested-by: Sachin Sant <sachinp@linux.ibm.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>		2022-11-26 00:35:16 +00:00
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Kconfig	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
Makefile	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
scsi_dh_alua.c	scsi: device_handler: alua: Call scsi_device_put() from non-atomic context	2022-11-26 00:35:16 +00:00
scsi_dh_emc.c	scsi/device_handlers: Use the new blk_opf_t type	2022-07-14 12:14:32 -06:00
scsi_dh_hp_sw.c	scsi/device_handlers: Use the new blk_opf_t type	2022-07-14 12:14:32 -06:00
scsi_dh_rdac.c	scsi/device_handlers: Use the new blk_opf_t type	2022-07-14 12:14:32 -06:00