summaryrefslogtreecommitdiffstats
path: root/fs/ext2/xip.h
blob: 29be73781419b8b8fc4cdfc383b8406cc0339e30 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
/*
 *  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 *);
#else
#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