From: Daniel Taylor <Daniel.Taylor@wdc.com>
Date: Tue, 23 Mar 2010 20:35:50 +0000 (-0700)
Subject: fs/partitions/msdos: add support for large disks
X-Git-Tag: v2.6.34-rc3~49
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3fbf586cf7f245392142e5407c2a56f1cff979b6;p=pandora-kernel.git

fs/partitions/msdos: add support for large disks

In order to use disks larger than 2TiB on Windows XP, it is necessary to
use 4096-byte logical sectors in an MBR.

Although the kernel storage and functions called from msdos.c used
"sector_t" internally, msdos.c still used u32 variables, which results in
the ability to handle XP-compatible large disks.

This patch changes the internal variables to "sector_t".

Daniel said: "In the near future, WD will be releasing products that need
this patch".

[hirofumi@mail.parknet.co.jp: tweaks and fix]
Signed-off-by: Daniel Taylor <daniel.taylor@wdc.com>
Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

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