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From: Greg KH on 10 May 2010 19:30
2.6.33-stable review patch. If anyone has any objections, please let us know.

------------------

From: Douglas Gilbert <dgilbert(a)interlog.com>

commit 5447ed6c968e7270b656afa273c2b79d15d82edd upstream.

In the scsi_debug driver, the virtual_gb option ignores the
sector_size, implicitly assuming that is 512 bytes. So if
'virtual_gb=1 sector_size=4096' the result is an 8 GB (virtual) disk.

Signed-off-by: Douglas Gilbert <dgilbert(a)interlog.com>
Signed-off-by: James Bottomley <James.Bottomley(a)suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh(a)suse.de>

---
drivers/scsi/scsi_debug.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

--- a/drivers/scsi/scsi_debug.c
+++ b/drivers/scsi/scsi_debug.c
@@ -956,7 +956,8 @@ static int resp_start_stop(struct scsi_c
static sector_t get_sdebug_capacity(void)
{
if (scsi_debug_virtual_gb > 0)
- return 2048 * 1024 * (sector_t)scsi_debug_virtual_gb;
+ return (sector_t)scsi_debug_virtual_gb *
+ (1073741824 / scsi_debug_sector_size);
else
return sdebug_store_sectors;
}


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