| Carsten Otte | 6d79125 | 2005-06-23 22:05:26 -0700 | [diff] [blame] | 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 |