From 84b775a354f640736176b5d966408fc5d5da6665 Mon Sep 17 00:00:00 2001
From: Coly Li <i@coly.li>
Date: Thu, 24 Feb 2011 12:51:59 -0500
Subject: [PATCH] ext4: code cleanup in mb_find_buddy()

Current code calculate max no matter whether order is zero, it's
unnecessary. This cleanup patch sets max to "1 << (e4b->bd_blkbits
+ 3)" only when order == 0.

Signed-off-by: Coly Li <bosong.ly@taobao.com>
Cc: Alex Tomas <alex@clusterfs.com>
Cc: Theodore Tso <tytso@google.com>
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