ocfs2: Add readhead during CoW.

In CoW, when we meet with a readahead page, we know
it is time to move the readahead window. So carry
out a new readahead.

Signed-off-by: Tao Ma <tao.ma@oracle.com>
This commit is contained in:
Tao Ma 2010-08-12 10:31:34 +08:00
commit 6ea4843f53