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Subject[PATCH 2/3] scsi: add scsi_device->alt_capacity
Date
Add scsi_device->alt_capacity and let sd pass it over to genhd.  This
is to allow SCSI low level drivers to configure alt_capacity via
slave_configure().

Signed-off-by: Tejun Heo <tj@kernel.org>
---
drivers/scsi/sd.c | 1 +
include/scsi/scsi_device.h | 1 +
2 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index d57566b..b83d850 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -1751,6 +1751,7 @@ static int sd_revalidate_disk(struct gendisk *disk)
blk_queue_ordered(sdkp->disk->queue, ordered, sd_prepare_flush);

set_capacity(disk, sdkp->capacity);
+ set_alt_capacity(disk, sdp->alt_capacity);
kfree(buffer);

out:
diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h
index 01a4c58..55be54a 100644
--- a/include/scsi/scsi_device.h
+++ b/include/scsi/scsi_device.h
@@ -92,6 +92,7 @@ struct scsi_device {
unsigned int manufacturer; /* Manufacturer of device, for using
* vendor-specific cmd's */
unsigned sector_size; /* size in bytes */
+ size_t alt_capacity; /* alternative capacity, used by sd */

void *hostdata; /* available to low-level driver */
char type;
--
1.6.0.2


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