diff options
Diffstat (limited to 'fs/ext2/xip.h')
| -rw-r--r-- | fs/ext2/xip.h | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/fs/ext2/xip.h b/fs/ext2/xip.h new file mode 100644 index 00000000..18b34d2f --- /dev/null +++ b/fs/ext2/xip.h @@ -0,0 +1,26 @@ +/* + * 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 |