blob: 80aa9a023372d4356524824854fba73ac89dc4ec [file] [log] [blame]
David Howells07f3f052006-09-30 20:52:18 +02001/* fs/ internal definitions
2 *
3 * Copyright (C) 2006 Red Hat, Inc. All Rights Reserved.
4 * Written by David Howells (dhowells@redhat.com)
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version
9 * 2 of the License, or (at your option) any later version.
10 */
11
Andrew Morton5e6d12b2006-08-31 12:55:23 +020012struct super_block;
13
David Howells07f3f052006-09-30 20:52:18 +020014/*
15 * block_dev.c
16 */
David Howells93614012006-09-30 20:45:40 +020017#ifdef CONFIG_BLOCK
David Howells07f3f052006-09-30 20:52:18 +020018extern struct super_block *blockdev_superblock;
19extern void __init bdev_cache_init(void);
20
Andrew Morton5e6d12b2006-08-31 12:55:23 +020021static inline int sb_is_blkdev_sb(struct super_block *sb)
22{
23 return sb == blockdev_superblock;
24}
David Howells93614012006-09-30 20:45:40 +020025
Andrew Morton5e6d12b2006-08-31 12:55:23 +020026#else
27static inline void bdev_cache_init(void)
28{
29}
30
31static inline int sb_is_blkdev_sb(struct super_block *sb)
32{
33 return 0;
34}
David Howells93614012006-09-30 20:45:40 +020035#endif
David Howells7b0de422006-08-29 19:06:07 +010036
David Howells07f3f052006-09-30 20:52:18 +020037/*
38 * char_dev.c
39 */
40extern void __init chrdev_init(void);
41
42/*
David Howells07f3f052006-09-30 20:52:18 +020043 * namespace.c
44 */
45extern int copy_mount_options(const void __user *, unsigned long *);
Al Viro6d59e7f2008-03-22 15:48:17 -040046
47extern void free_vfsmnt(struct vfsmount *);
48extern struct vfsmount *alloc_vfsmnt(const char *);
49extern struct vfsmount *__lookup_mnt(struct vfsmount *, struct dentry *, int);
50extern void mnt_set_mountpoint(struct vfsmount *, struct dentry *,
51 struct vfsmount *);
52extern void release_mounts(struct list_head *);
53extern void umount_tree(struct vfsmount *, int, struct list_head *);
54extern struct vfsmount *copy_tree(struct vfsmount *, struct dentry *, int);
55
56extern void __init mnt_init(void);