linux/drivers/scsi/megaraid
Kashyap Desai 1e793f6fc0 scsi: megaraid_sas: Fix data integrity failure for JBOD (passthrough) devices
Commit 02b01e010a ("megaraid_sas: return sync cache call with
success") modified the driver to successfully complete SYNCHRONIZE_CACHE
commands without passing them to the controller. Disk drive caches are
only explicitly managed by controller firmware when operating in RAID
mode. So this commit effectively disabled writeback cache flushing for
any drives used in JBOD mode, leading to data integrity failures.

[mkp: clarified patch description]

Fixes: 02b01e010a
CC: stable@vger.kernel.org
Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com>
Signed-off-by: Sumit Saxena <sumit.saxena@broadcom.com>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-10-24 21:31:43 -04:00
..
Kconfig.megaraid
Makefile [SCSI] megaraid_sas: Add 9565/9285 specific code 2010-12-22 23:26:53 -06:00
mbox_defs.h Fix common misspellings 2011-03-31 11:26:23 -03:00
mega_common.h scsi: use 64-bit LUNs 2014-07-17 22:07:37 +02:00
megaraid_ioctl.h
megaraid_mbox.c scsi: drop reason argument from ->change_queue_depth 2014-11-24 14:45:27 +01:00
megaraid_mbox.h
megaraid_mm.c megaraid: Fix possible NULL pointer deference in mraid_mm_ioctl 2016-01-08 13:03:53 -05:00
megaraid_mm.h
megaraid_sas.h megaraid_sas: driver version upgrade 2016-04-15 16:53:22 -04:00
megaraid_sas_base.c scsi: megaraid_sas: Fix data integrity failure for JBOD (passthrough) devices 2016-10-24 21:31:43 -04:00
megaraid_sas_fp.c megaraid_sas: Fastpath region lock bypass 2016-02-23 21:27:02 -05:00
megaraid_sas_fusion.c megaraid_sas: Fix probing cards without io port 2016-08-10 22:28:54 -04:00
megaraid_sas_fusion.h scsi: megaraid_sas: clean function declarations in megaraid_sas_base.c up 2016-09-19 11:59:32 -04:00