linux-kernel - [PATCH 4/8] Drivers: scsi: storvsc: Filter WRITE_SAME

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Message-Id: <1404866812-26950-4-git-send-email-kys@microsoft.com>
Date:	Tue,  8 Jul 2014 17:46:48 -0700
From:	"K. Y. Srinivasan" <kys@...rosoft.com>
To:	linux-kernel@...r.kernel.org, devel@...uxdriverproject.org,
	ohering@...e.com, jbottomley@...allels.com, jasowang@...hat.com,
	apw@...onical.com, linux-scsi@...r.kernel.org
Cc:	"K. Y. Srinivasan" <kys@...rosoft.com>, <stable@...r.kernel.org>
Subject: [PATCH 4/8] Drivers: scsi: storvsc: Filter WRITE_SAME_16

Host does not handle WRITE_SAME_16; filter this command out. This patch
is required to handle large devices (greater than 2 TB disks).

Signed-off-by: K. Y. Srinivasan <kys@...rosoft.com>
Cc: <stable@...r.kernel.org>
---
 drivers/scsi/storvsc_drv.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/drivers/scsi/storvsc_drv.c b/drivers/scsi/storvsc_drv.c
index d9d8051..428dbda 100644
--- a/drivers/scsi/storvsc_drv.c
+++ b/drivers/scsi/storvsc_drv.c
@@ -1529,6 +1529,7 @@ static bool storvsc_scsi_cmd_ok(struct scsi_cmnd *scmnd)
 	switch (scsi_op) {
 	/* the host does not handle WRITE_SAME, log accident usage */
 	case WRITE_SAME:
+	case WRITE_SAME_16:
 	/*
 	 * smartd sends this command and the host does not handle
 	 * this. So, don't send it.
-- 
1.7.4.1

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