From: Jan Kara <jack@suse.cz>
Date: Wed, 6 Jan 2010 17:03:36 +0000 (+0100)
Subject: quota: Fix dquot_transfer for filesystems different from ext4
X-Git-Tag: v2.6.33-rc4~15^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=05b5d898235401c489c68e1f3bc5706a29ad5713;p=pandora-kernel.git

quota: Fix dquot_transfer for filesystems different from ext4

Commit fd8fbfc1 modified the way we find amount of reserved space
belonging to an inode. The amount of reserved space is checked
from dquot_transfer and thus inode_reserved_space gets called
even for filesystems that don't provide get_reserved_space callback
which results in a BUG.

Fix the problem by checking get_reserved_space callback and return 0 if
the filesystem does not provide it.

CC: Dmitry Monakhov <dmonakhov@openvz.org>
Signed-off-by: Jan Kara <jack@suse.cz>
---

Reading git-diff-tree failed