From: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Date: Fri, 9 Aug 2013 05:25:36 +0000 (+0800)
Subject: Btrfs: allocate prelim_ref with a slab allocater
X-Git-Tag: v3.12-rc1~40^2~15
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b9e9a6cbc6d25b89d8007e5a680319e07921ead8;p=pandora-kernel.git

Btrfs: allocate prelim_ref with a slab allocater

struct __prelim_ref is allocated and freed frequently when
walking backref tree, using slab allocater can not only
speed up allocating but also detect memory leaks.

Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Reviewed-by: Miao Xie <miaox@cn.fujitsu.com>
Reviewed-by: Jan Schmidt <list.btrfs@jan-o-sch.net>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---

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