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 ext2_use_xip(struct super_block * sb)12static 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