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6d79125b CO |
1 | /* |
2 | * linux/fs/ext2/xip.h | |
3 | * | |
4 | * Copyright (C) 2005 IBM Corporation | |
5 | * Author: Carsten Otte (cotte@de.ibm.com) | |
6 | */ | |
7 | ||
8 | #ifdef CONFIG_EXT2_FS_XIP | |
9 | extern void ext2_xip_verify_sb (struct super_block *); | |
10 | extern int ext2_clear_xip_target (struct inode *, int); | |
11 | ||
12 | static inline int ext2_use_xip (struct super_block *sb) | |
13 | { | |
14 | struct ext2_sb_info *sbi = EXT2_SB(sb); | |
15 | return (sbi->s_mount_opt & EXT2_MOUNT_XIP); | |
16 | } | |
17 | struct page* ext2_get_xip_page (struct address_space *, sector_t, int); | |
18 | #define mapping_is_xip(map) unlikely(map->a_ops->get_xip_page) | |
19 | #else | |
20 | #define mapping_is_xip(map) 0 | |
21 | #define ext2_xip_verify_sb(sb) do { } while (0) | |
22 | #define ext2_use_xip(sb) 0 | |
23 | #define ext2_clear_xip_target(inode, chain) 0 | |
24 | #define ext2_get_xip_page NULL | |
25 | #endif |