[fireball] 34174: Roel Messiant <[e-mail]> - Fix one of the oldest bugs: "ROS can not parse partition table corectly". The original macro that calculates the space casts the value to ULONG, while ULONGLONG math is required here. See issue #950 for more details.

Author: fireball
Date: Sun Jun 29 03:33:21 2008
New Revision: 34174

URL: http://svn.reactos.org/svn/reactos?rev=34174&view=rev
Log:
Roel Messiant [e-mail]
- Fix one of the oldest bugs: "ROS can not parse partition table corectly". The original macro that calculates the space casts the value to ULONG, while ULONGLONG math is required here.
See issue #950 for more details.

Modified:
    trunk/reactos/base/setup/usetup/partlist.c

Modified: trunk/reactos/base/setup/usetup/partlist.c
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/base/setup/usetup/partlist....
==============================================================================
--- trunk/reactos/base/setup/usetup/partlist.c [iso-8859-1] (original)
+++ trunk/reactos/base/setup/usetup/partlist.c [iso-8859-1] Sun Jun 29 03:33:21 2008
@@ -406,8 +406,8 @@
     {
       /* Round-down to cylinder size */
       LastUnusedPartitionLength =
-      ROUND_DOWN (DiskEntry->DiskSize - (LastStartingOffset + LastPartitionLength),
-      DiskEntry->CylinderSize);
+        (DiskEntry->DiskSize - (LastStartingOffset + LastPartitionLength))
+        & ~(DiskEntry->CylinderSize - 1);

if (LastUnusedPartitionLength >= DiskEntry->CylinderSize)
       {