]> git.ipfire.org Git - people/ms/linux.git/commit
mptfusion: enable no_write_same for vmware scsi disks
authorChris J Arges <chris.j.arges@canonical.com>
Tue, 23 Sep 2014 14:22:25 +0000 (09:22 -0500)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 30 Oct 2014 16:43:07 +0000 (09:43 -0700)
commitf5fba53e0a6a8e3e2d287fa08dc83366f81e1526
tree830ecfd0561fe2b82383dc99833e34d9a3750b04
parent17b48b83ce69a3f9e934c0dad178a79a9277b738
mptfusion: enable no_write_same for vmware scsi disks

commit 4089b71cc820a426d601283c92fcd4ffeb5139c2 upstream.

When using a virtual SCSI disk in a VMWare VM if blkdev_issue_zeroout is used
data can be improperly zeroed out using the mptfusion driver. This patch
disables write_same for this driver and the vmware subsystem_vendor which
ensures that manual zeroing out is used instead.

BugLink: http://bugs.launchpad.net/bugs/1371591
Reported-by: Bruce Lucas <bruce.lucas@mongodb.com>
Tested-by: Chris J Arges <chris.j.arges@canonical.com>
Signed-off-by: Chris J Arges <chris.j.arges@canonical.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/message/fusion/mptspi.c