Drivers: add blist flags

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.
Signed-off-by: NK. Y. Srinivasan <kys@microsoft.com>
Reviewed-by: NHannes Reinecke <hare@suse.de>
Signed-off-by: NChristoph Hellwig <hch@lst.de>

drivers/scsi/storvsc_drv.c

@@ -327,6 +327,8 @@ 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);
@@ -1449,6 +1451,14 @@ 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;
 }