1/*
2 * Copyright (c) 2000-2003,2005 Silicon Graphics, Inc.
3 * All Rights Reserved.
4 *
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License as
7 * published by the Free Software Foundation.
8 *
9 * This program is distributed in the hope that it would be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write the Free Software Foundation,
16 * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
17 *
18 * Portions Copyright (c) 1982, 1986, 1993, 1994
19 *	The Regents of the University of California.  All rights reserved.
20 *
21 * Redistribution and use in source and binary forms, with or without
22 * modification, are permitted provided that the following conditions
23 * are met:
24 * 1. Redistributions of source code must retain the above copyright
25 *    notice, this list of conditions and the following disclaimer.
26 * 2. Redistributions in binary form must reproduce the above copyright
27 *    notice, this list of conditions and the following disclaimer in the
28 *    documentation and/or other materials provided with the distribution.
29 * 3. Neither the name of the University nor the names of its contributors
30 *    may be used to endorse or promote products derived from this software
31 *    without specific prior written permission.
32 *
33 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
34 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
35 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
36 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
37 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
38 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
39 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
40 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
41 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
42 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
43 * SUCH DAMAGE.
44 */
45#ifndef __XFS_SUPPORT_MOVE_H__
46#define __XFS_SUPPORT_MOVE_H__
47
48#include <linux/uio.h>
49#include <asm/uaccess.h>
50
51/* Segment flag values. */
52enum uio_seg {
53	UIO_USERSPACE,          /* from user data space */
54	UIO_SYSSPACE,           /* from system space */
55};
56
57struct uio {
58	struct kvec	*uio_iov;   /* pointer to array of iovecs */
59	int		uio_iovcnt; /* number of iovecs in array */
60	xfs_off_t	uio_offset; /* offset in file this uio corresponds to */
61	int		uio_resid;  /* residual i/o count */
62	enum uio_seg	uio_segflg; /* see above */
63};
64
65typedef struct uio uio_t;
66typedef struct kvec iovec_t;
67
68extern int	xfs_uio_read (caddr_t, size_t, uio_t *);
69
70#endif  /* __XFS_SUPPORT_MOVE_H__ */
71