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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 *, sector_t); |
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 | int ext2_get_xip_mem(struct address_space *, pgoff_t, int, |
18 | void **, unsigned long *); |
19 | #define mapping_is_xip(map) unlikely(map->a_ops->get_xip_mem) |
20 | #else |
21 | #define mapping_is_xip(map) 0 |
22 | #define ext2_xip_verify_sb(sb) do { } while (0) |
23 | #define ext2_use_xip(sb) 0 |
24 | #define ext2_clear_xip_target(inode, chain) 0 |
25 | #define ext2_get_xip_mem NULL |
26 | #endif |
27 |
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