From: Joseph Qi <joseph.qi@huawei.com>
Date: Wed, 4 Jun 2014 23:06:17 +0000 (-0700)
Subject: ocfs2: fix incorrect i_size of global bitmap inode after resize
X-Git-Tag: omap-for-v3.16/fixes-against-rc1~56^2~16^2~242
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=17bf1418b78d9c51370f29c2b840f7d0a1bf311a;p=pandora-kernel.git

ocfs2: fix incorrect i_size of global bitmap inode after resize

Ocfs2 cluster size may be 1MB, which has 20 bits.  When resize, the
input new clusters is mostly the number of clusters in a group
descriptor(32256).

Since the input clusters is defined as type int, so it will overflow
when shift left 20 bits and then lead to incorrect global bitmap i_size.

Signed-off-by: Joseph Qi <joseph.qi@huawei.com>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: Joel Becker <jlbec@evilplan.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

Reading git-diff-tree failed