LDM: Fix for Windows Vista dynamic disks

This fixes the LDM driver so that it works with Windows Vista dynamic
disks which are subtly different to Windows 2000/XP ones.

The patch was needed to get a Vista formatted dynamic disk to be
recognized and parsed successfully.

Thanks go to Chris Teachworth for the report and testing.

Cc: Richard Russon <ldm@flatcap.org>
Signed-off-by: Anton Altaparmakov <aia21@cantab.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 8 insertions, 4 deletions

diff --git a/fs/partitions/Kconfig b/fs/partitions/Kconfig
index 7638a1c42a7d..a99acd8de353 100644
--- a/fs/partitions/Kconfig
+++ b/fs/partitions/Kconfig
@@ -166,8 +166,12 @@ config LDM_PARTITION
         depends on PARTITION_ADVANCED
         ---help---
           Say Y here if you would like to use hard disks under Linux which
-          were partitioned using Windows 2000's or XP's Logical Disk Manager.
-          They are also known as "Dynamic Disks".
+          were partitioned using Windows 2000's/XP's or Vista's Logical Disk
+          Manager.  They are also known as "Dynamic Disks".
+
+          Note this driver only supports Dynamic Disks with a protective MBR
+          label, i.e. DOS partition table.  It does not support GPT labelled
+          Dynamic Disks yet as can be created with Vista.
 
           Windows 2000 introduced the concept of Dynamic Disks to get around
           the limitations of the PC's partitioning scheme.  The Logical Disk
@@ -175,8 +179,8 @@ config LDM_PARTITION
           mirrored, striped or RAID volumes, all without the need for
           rebooting.
 
-          Normal partitions are now called Basic Disks under Windows 2000 and
-          XP.
+          Normal partitions are now called Basic Disks under Windows 2000, XP,
+          and Vista.
 
           For a fuller description read <file:Documentation/ldm.txt>.