From: Miao Xie <miaox@cn.fujitsu.com>
Date: Wed, 28 Nov 2012 10:28:54 +0000 (+0000)
Subject: Btrfs: fix off-by-one error of the reserved size of btrfs_allocate()
X-Git-Tag: v3.8-rc1~71^2~36
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0ff6fabdb0a862b22df4dd75873578392478e64d;p=pandora-kernel.git

Btrfs: fix off-by-one error of the reserved size of btrfs_allocate()

alloc_end is not the real end of the current extent, it is the start of the
next adjoining extent. So we needn't +1 when calculating the size the space
that is about to be reserved.

Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Reviewed-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---

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