ocfs2: Add readahead support for CoW.
authorTao Ma <tao.ma@oracle.com>
Thu, 17 Jun 2010 06:14:36 +0000 (14:14 +0800)
committerTao Ma <tao.ma@oracle.com>
Thu, 12 Aug 2010 02:40:01 +0000 (10:40 +0800)
Add a new function ocfs2_readahead_for_cow so that
we start readahead before we start our CoW.

Signed-off-by: Tao Ma <tao.ma@oracle.com>
fs/ocfs2/refcounttree.c

Simple merge