1/*-
2 * Copyright (c) 2020 The FreeBSD Foundation
3 *
4 * This software was developed by Emmanuel Vadot under sponsorship
5 * from the FreeBSD Foundation.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28#ifndef __LINUX_PAGEMAP_H__
29#define __LINUX_PAGEMAP_H__
30
31#include "asm/page.h"
32
33#ifdef __cplusplus
34#if __cplusplus
35extern "C" {
36#endif /* __cplusplus */
37#endif /* __cplusplus */
38
39#define COMPAT_PAGE_SHIFT             12
40#define COMPAT_PAGE_CACHE_SHIFT       COMPAT_PAGE_SHIFT
41#define COMPAT_PAGE_CACHE_SIZE        PAGE_SIZE
42
43#define PageLocked(page)              1
44#define Page_Uptodate(page)           0
45#define UnlockPage(page)
46#define PAGE_BUG(page)                BUG()
47#define ClearPageUptodate(page)
48#define SetPageError(page)
49#define ClearPageError(page)
50#define SetPageUptodate(page)
51
52#define PAGE_CACHE_SHIFT              COMPAT_PAGE_CACHE_SHIFT
53#define PAGE_CACHE_SIZE               COMPAT_PAGE_CACHE_SIZE
54
55#ifdef __cplusplus
56#if __cplusplus
57}
58#endif /* __cplusplus */
59#endif /* __cplusplus */
60
61#endif /* __LINUX_PAGEMAP_H__ */
62