From: Tao Ma <tao.ma@oracle.com>
Date: Mon, 24 Aug 2009 06:31:03 +0000 (+0800)
Subject: ocfs2: Abstract duplicate clusters process in CoW.
X-Git-Tag: v2.6.32-rc1~173^2~21
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=913580b4cd445c4fb25d7cf167911a8cf6bdb1eb;p=pandora-kernel.git

ocfs2: Abstract duplicate clusters process in CoW.

We currently use pagecache to duplicate clusters in CoW,
but it isn't suitable for xattr case. So abstract it out
so that the caller can decide which method it use.

Signed-off-by: Tao Ma <tao.ma@oracle.com>
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