tree cbe3f34a5758b920289b5383ff72e2108b9fa070
parent e5341f3a5762d17be9cdd06257c02c0098bdcab8
author Peng Tao <tao.peng@primarydata.com> 1443205476 +0800
committer Trond Myklebust <trond.myklebust@primarydata.com> 1444939684 -0400

nfs42: add NFS_IOC_CLONE ioctl

It can be called by user space to CLONE two files.
Follow btrfs lead and define NFS_IOC_CLONE same as BTRFS_IOC_CLONE.
Thus we don't mess up userspace with too many ioctls.

Signed-off-by: Peng Tao <tao.peng@primarydata.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>