Messages in this thread Patch in this message | | | From | Chris J Arges <> | Subject | [PATCH] mptfusion: enable no_write_same in scsi_host_template | Date | Mon, 22 Sep 2014 12:56:59 -0500 |
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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 which ensures that manual zeroing out is used instead.
BugLink: http://bugs.launchpad.net/bugs/1371591 Reported-by: Bruce Lucas <bruce.lucas@mongodb.com> Signed-off-by: Chris J Arges <chris.j.arges@canonical.com> --- drivers/message/fusion/mptspi.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/message/fusion/mptspi.c b/drivers/message/fusion/mptspi.c index 787933d..2fcc9bd 100644 --- a/drivers/message/fusion/mptspi.c +++ b/drivers/message/fusion/mptspi.c @@ -850,6 +850,7 @@ static struct scsi_host_template mptspi_driver_template = { .cmd_per_lun = 7, .use_clustering = ENABLE_CLUSTERING, .shost_attrs = mptscsih_host_attrs, + .no_write_same = 1, }; static int mptspi_write_spi_device_pg1(struct scsi_target *starget, -- 1.9.1
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