From: Miao Xie <miaox@cn.fujitsu.com>
Date: Thu, 25 Jul 2013 11:22:35 +0000 (+0800)
Subject: Btrfs: batch the extent state operation in the end io handle of the read page
X-Git-Tag: v3.12-rc1~40^2~91
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=883d0de485222715929f7b7e2a9a34dc9b9b2be2;p=pandora-kernel.git

Btrfs: batch the extent state operation in the end io handle of the read page

Before applying this patch, we set the uptodate flag and unlock the extent
by the page size, it is unnecessary, we can do it in batches, it can reduce
the lock contention of the extent state tree.

Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---

Reading git-diff-tree failed