tree 24ad6cb14d27f101863035029eb8cea0ee8ed361
parent 1061f9c1c9f81ed88b5d268a95d8e3ace80da63a
author Tao Ma <tao.ma@oracle.com> 1251095463 +0800
committer Joel Becker <joel.becker@oracle.com> 1253675380 -0700

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>