[SCSI] scsi_debug: support large non-fake virtual disk

Currently, the maximum amount of RAM that scsi_debug can allocate is
4GB. This patch increases it to 2TB; scsi_debug can allocates 2TB
memory and export it as if it were 2TB scsi disk.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Douglas Gilbert <dougg@torque.net>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

1 files changed, 3 insertions, 3 deletions

diff --git a/drivers/scsi/scsi_debug.c b/drivers/scsi/scsi_debug.c
index c98559eceade..1b6a6d8e5d27 100644
--- a/drivers/scsi/scsi_debug.c
+++ b/drivers/scsi/scsi_debug.c
@@ -1949,7 +1949,7 @@ static void __init init_all_queued(void)
 }
 
 static void __init sdebug_build_parts(unsigned char *ramp,
-                                      unsigned int store_size)
+                                      unsigned long store_size)
 {
         struct partition * pp;
         int starts[SDEBUG_MAX_PARTS + 2];
@@ -2476,14 +2476,14 @@ static void do_remove_driverfs_files(void)
 
 static int __init scsi_debug_init(void)
 {
-        unsigned int sz;
+        unsigned long sz;
         int host_to_add;
         int k;
         int ret;
 
         if (scsi_debug_dev_size_mb < 1)
                 scsi_debug_dev_size_mb = 1;  /* force minimum 1 MB ramdisk */
-        sz = (unsigned int)scsi_debug_dev_size_mb * 1048576;
+        sz = (unsigned long)scsi_debug_dev_size_mb * 1048576;
         sdebug_store_sectors = sz / SECT_SIZE;
         sdebug_capacity = get_sdebug_capacity();