From: Tao Ma <tao.ma@oracle.com>
Date: Mon, 21 Sep 2009 03:25:14 +0000 (+0800)
Subject: ocfs2: Add ioctl for reflink.
X-Git-Tag: v2.6.32-rc1~173^2~4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=bd50873dc725a9fa72592ecc986c58805e823051;p=pandora-kernel.git

ocfs2: Add ioctl for reflink.

The ioctl will take 3 parameters: old_path, new_path and
preserve and call vfs_reflink. It is useful when we backport
reflink features to old kernels.

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