usbfs: fix race between open and unregister
[linux-2.6/mini2440.git] / fs / internal.h
blob80aa9a023372d4356524824854fba73ac89dc4ec
1 /* fs/ internal definitions
3 * Copyright (C) 2006 Red Hat, Inc. All Rights Reserved.
4 * Written by David Howells (dhowells@redhat.com)
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.
12 struct super_block;
15 * block_dev.c
17 #ifdef CONFIG_BLOCK
18 extern struct super_block *blockdev_superblock;
19 extern void __init bdev_cache_init(void);
21 static inline int sb_is_blkdev_sb(struct super_block *sb)
23 return sb == blockdev_superblock;
26 #else
27 static inline void bdev_cache_init(void)
31 static inline int sb_is_blkdev_sb(struct super_block *sb)
33 return 0;
35 #endif
38 * char_dev.c
40 extern void __init chrdev_init(void);
43 * namespace.c
45 extern int copy_mount_options(const void __user *, unsigned long *);
47 extern void free_vfsmnt(struct vfsmount *);
48 extern struct vfsmount *alloc_vfsmnt(const char *);
49 extern struct vfsmount *__lookup_mnt(struct vfsmount *, struct dentry *, int);
50 extern void mnt_set_mountpoint(struct vfsmount *, struct dentry *,
51 struct vfsmount *);
52 extern void release_mounts(struct list_head *);
53 extern void umount_tree(struct vfsmount *, int, struct list_head *);
54 extern struct vfsmount *copy_tree(struct vfsmount *, struct dentry *, int);
56 extern void __init mnt_init(void);