linux-kernel - [PATCH 1/3] Revert "Drivers: add blist flags"

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Date:	Fri, 10 Oct 2014 08:51:10 +0100
From:	Sitsofe Wheeler <sitsofe@...il.com>
To:	"K. Y. Srinivasan" <kys@...rosoft.com>
Cc:	Haiyang Zhang <haiyangz@...rosoft.com>,
	Christoph Hellwig <hch@....de>, Hannes Reinecke <hare@...e.de>,
	linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org,
	devel@...uxdriverproject.org,
	"James E.J. Bottomley" <JBottomley@...allels.com>
Subject: [PATCH 1/3] Revert "Drivers: add blist flags"

This reverts commit f3cfabce7a2e92564d380de3aad4b43901fb7ae6 (Drivers:
add blist flags) as it does not enable thin provisioning for my Hyper-V 2012 R2
virtual disks.

Signed-off-by: Sitsofe Wheeler <sitsofe@...oo.com>
---
 drivers/scsi/storvsc_drv.c | 10 ----------
 1 file changed, 10 deletions(-)

diff --git a/drivers/scsi/storvsc_drv.c b/drivers/scsi/storvsc_drv.c
index 733e5f7..2cc094e 100644
--- a/drivers/scsi/storvsc_drv.c
+++ b/drivers/scsi/storvsc_drv.c
@@ -327,8 +327,6 @@ MODULE_PARM_DESC(storvsc_ringbuffer_size, "Ring buffer size (bytes)");
  */
 static int storvsc_timeout = 180;
 
-static int msft_blist_flags = BLIST_TRY_VPD_PAGES;
-
 #define STORVSC_MAX_IO_REQUESTS				200
 
 static void storvsc_on_channel_callback(void *context);
@@ -1439,14 +1437,6 @@ static int storvsc_device_configure(struct scsi_device *sdevice)
 
 	sdevice->no_write_same = 1;
 
-	/*
-	 * Add blist flags to permit the reading of the VPD pages even when
-	 * the target may claim SPC-2 compliance. MSFT targets currently
-	 * claim SPC-2 compliance while they implement post SPC-2 features.
-	 * With this patch we can correctly handle WRITE_SAME_16 issues.
-	 */
-	sdevice->sdev_bflags |= msft_blist_flags;
-
 	return 0;
 }
 
-- 
1.9.3

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