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David Howells07f3f05c2006-09-30 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;
David Howellsa6f76f22008-11-14 10:39:24 +110013struct linux_binprm;
Al Viro3e93cd62009-03-29 19:00:13 -040014struct path;
Andrew Morton5e6d12b2006-08-31 12:55:23 +020015
David Howells07f3f05c2006-09-30 20:52:18 +020016/*
17 * block_dev.c
18 */
David Howells93614012006-09-30 20:45:40 +020019#ifdef CONFIG_BLOCK
David Howells07f3f05c2006-09-30 20:52:18 +020020extern struct super_block *blockdev_superblock;
21extern void __init bdev_cache_init(void);
22
Andrew Morton5e6d12b2006-08-31 12:55:23 +020023static inline int sb_is_blkdev_sb(struct super_block *sb)
24{
25 return sb == blockdev_superblock;
26}
David Howells93614012006-09-30 20:45:40 +020027
Andrew Morton5e6d12b2006-08-31 12:55:23 +020028#else
29static inline void bdev_cache_init(void)
30{
31}
32
33static inline int sb_is_blkdev_sb(struct super_block *sb)
34{
35 return 0;
36}
David Howells93614012006-09-30 20:45:40 +020037#endif
David Howells7b0de422006-08-29 19:06:07 +010038
David Howells07f3f05c2006-09-30 20:52:18 +020039/*
40 * char_dev.c
41 */
42extern void __init chrdev_init(void);
43
44/*
David Howellsa6f76f22008-11-14 10:39:24 +110045 * exec.c
46 */
Al Viro498052b2009-03-30 07:20:30 -040047extern int check_unsafe_exec(struct linux_binprm *);
David Howellsa6f76f22008-11-14 10:39:24 +110048
49/*
David Howells07f3f05c2006-09-30 20:52:18 +020050 * namespace.c
51 */
52extern int copy_mount_options(const void __user *, unsigned long *);
Al Viro6d59e7f2008-03-22 15:48:17 -040053
54extern void free_vfsmnt(struct vfsmount *);
55extern struct vfsmount *alloc_vfsmnt(const char *);
56extern struct vfsmount *__lookup_mnt(struct vfsmount *, struct dentry *, int);
57extern void mnt_set_mountpoint(struct vfsmount *, struct dentry *,
58 struct vfsmount *);
59extern void release_mounts(struct list_head *);
60extern void umount_tree(struct vfsmount *, int, struct list_head *);
61extern struct vfsmount *copy_tree(struct vfsmount *, struct dentry *, int);
62
63extern void __init mnt_init(void);
Al Viro3e93cd62009-03-29 19:00:13 -040064
65/*
66 * fs_struct.c
67 */
68extern void chroot_fs_refs(struct path *, struct path *);