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 35 extern "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