| /* |
| * linux/fs/ext2/xip.h |
| * |
| * Copyright (C) 2005 IBM Corporation |
| * Author: Carsten Otte (cotte@de.ibm.com) |
| */ |
| |
| #ifdef CONFIG_EXT2_FS_XIP |
| extern void ext2_xip_verify_sb (struct super_block *); |
| extern int ext2_clear_xip_target (struct inode *, sector_t); |
| |
| static inline int ext2_use_xip (struct super_block *sb) |
| { |
| struct ext2_sb_info *sbi = EXT2_SB(sb); |
| return (sbi->s_mount_opt & EXT2_MOUNT_XIP); |
| } |
| int ext2_get_xip_mem(struct address_space *, pgoff_t, int, |
| void **, unsigned long *); |
| #define mapping_is_xip(map) unlikely(map->a_ops->get_xip_mem) |
| #else |
| #define mapping_is_xip(map) 0 |
| #define ext2_xip_verify_sb(sb) do { } while (0) |
| #define ext2_use_xip(sb) 0 |
| #define ext2_clear_xip_target(inode, chain) 0 |
| #define ext2_get_xip_mem NULL |
| #endif |