2005-06-24 13:05:26 +08:00
|
|
|
/*
|
|
|
|
|
* 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 *);
|
2008-04-28 17:13:02 +08:00
|
|
|
extern int ext2_clear_xip_target (struct inode *, sector_t);
|
2005-06-24 13:05:26 +08:00
|
|
|
|
|
|
|
|
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);
|
|
|
|
|
}
|
2008-04-28 17:13:02 +08:00
|
|
|
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)
|
2005-06-24 13:05:26 +08:00
|
|
|
#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
|
2008-04-28 17:13:02 +08:00
|
|
|
#define ext2_get_xip_mem NULL
|
2005-06-24 13:05:26 +08:00
|
|
|
#endif
|
