]> git.ipfire.org Git - thirdparty/kernel/stable.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)
committerJiri Slaby <jslaby@suse.cz>
Fri, 31 Oct 2014 14:11:12 +0000 (15:11 +0100)
commitbb51226f6521c7d64c8422dc4a93750c32d907c5
tree68b101e46768d4e019c544721b0552eaa2e392d2
parent557e6425d7abb2b9766aaa512aaf85714189a51d
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: Jiri Slaby <jslaby@suse.cz>
drivers/message/fusion/mptspi.c