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1 | /* 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 | ||
12 | #include <linux/lglock.h> | |
13 | ||
14 | struct super_block; | |
15 | struct linux_binprm; | |
16 | struct path; | |
17 | ||
18 | /* | |
19 | * block_dev.c | |
20 | */ | |
21 | #ifdef CONFIG_BLOCK | |
22 | extern struct super_block *blockdev_superblock; | |
23 | extern void __init bdev_cache_init(void); | |
24 | ||
25 | static inline int sb_is_blkdev_sb(struct super_block *sb) | |
26 | { | |
27 | return sb == blockdev_superblock; | |
28 | } | |
29 | ||
30 | extern int __sync_blockdev(struct block_device *bdev, int wait); | |
31 | ||
32 | #else | |
33 | static inline void bdev_cache_init(void) | |
34 | { | |
35 | } | |
36 | ||
37 | static inline int sb_is_blkdev_sb(struct super_block *sb) | |
38 | { | |
39 | return 0; | |
40 | } | |
41 | ||
42 | static inline int __sync_blockdev(struct block_device *bdev, int wait) | |
43 | { | |
44 | return 0; | |
45 | } | |
46 | #endif | |
47 | ||
48 | /* | |
49 | * char_dev.c | |
50 | */ | |
51 | extern void __init chrdev_init(void); | |
52 | ||
53 | /* | |
54 | * exec.c | |
55 | */ | |
56 | extern int check_unsafe_exec(struct linux_binprm *); | |
57 | ||
58 | /* | |
59 | * namespace.c | |
60 | */ | |
61 | extern int copy_mount_options(const void __user *, unsigned long *); | |
62 | extern int copy_mount_string(const void __user *, char **); | |
63 | ||
64 | extern void free_vfsmnt(struct vfsmount *); | |
65 | extern struct vfsmount *alloc_vfsmnt(const char *); | |
66 | extern struct vfsmount *__lookup_mnt(struct vfsmount *, struct dentry *, int); | |
67 | extern void mnt_set_mountpoint(struct vfsmount *, struct dentry *, | |
68 | struct vfsmount *); | |
69 | extern void release_mounts(struct list_head *); | |
70 | extern void umount_tree(struct vfsmount *, int, struct list_head *); | |
71 | extern struct vfsmount *copy_tree(struct vfsmount *, struct dentry *, int); | |
72 | ||
73 | extern void __init mnt_init(void); | |
74 | ||
75 | DECLARE_BRLOCK(vfsmount_lock); | |
76 | ||
77 | ||
78 | /* | |
79 | * fs_struct.c | |
80 | */ | |
81 | extern void chroot_fs_refs(struct path *, struct path *); | |
82 | ||
83 | /* | |
84 | * file_table.c | |
85 | */ | |
86 | extern void file_sb_list_add(struct file *f, struct super_block *sb); | |
87 | extern void file_sb_list_del(struct file *f); | |
88 | extern void mark_files_ro(struct super_block *); | |
89 | extern struct file *get_empty_filp(void); | |
90 | ||
91 | /* | |
92 | * super.c | |
93 | */ | |
94 | extern int do_remount_sb(struct super_block *, int, void *, int); | |
95 | extern void __put_super(struct super_block *sb); | |
96 | extern void put_super(struct super_block *sb); | |
97 | ||
98 | /* | |
99 | * open.c | |
100 | */ | |
101 | struct nameidata; | |
102 | extern struct file *nameidata_to_filp(struct nameidata *); | |
103 | extern void release_open_intent(struct nameidata *); | |
104 | ||
105 | /* | |
106 | * inode.c | |
107 | */ | |
108 | extern int get_nr_dirty_inodes(void); | |
109 | extern void evict_inodes(struct super_block *); | |
110 | extern int invalidate_inodes(struct super_block *); |