Commit | Line | Data |
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07f3f05c DH |
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 | ||
99b7db7b NP |
12 | #include <linux/lglock.h> |
13 | ||
5e6d12b2 | 14 | struct super_block; |
9d412a43 | 15 | struct file_system_type; |
a6f76f23 | 16 | struct linux_binprm; |
3e93cd67 | 17 | struct path; |
c7105365 | 18 | struct mount; |
5e6d12b2 | 19 | |
07f3f05c DH |
20 | /* |
21 | * block_dev.c | |
22 | */ | |
9361401e | 23 | #ifdef CONFIG_BLOCK |
07f3f05c DH |
24 | extern void __init bdev_cache_init(void); |
25 | ||
5cee5815 JK |
26 | extern int __sync_blockdev(struct block_device *bdev, int wait); |
27 | ||
9361401e | 28 | #else |
5e6d12b2 AM |
29 | static inline void bdev_cache_init(void) |
30 | { | |
31 | } | |
9361401e | 32 | |
5cee5815 JK |
33 | static inline int __sync_blockdev(struct block_device *bdev, int wait) |
34 | { | |
35 | return 0; | |
36 | } | |
9361401e | 37 | #endif |
7b0de42d | 38 | |
07f3f05c DH |
39 | /* |
40 | * char_dev.c | |
41 | */ | |
42 | extern void __init chrdev_init(void); | |
43 | ||
0bdaea90 DH |
44 | /* |
45 | * namei.c | |
46 | */ | |
47 | extern int __inode_permission(struct inode *, int); | |
197df04c AV |
48 | extern int user_path_mountpoint_at(int, const char __user *, unsigned int, struct path *); |
49 | extern int vfs_path_lookup(struct dentry *, struct vfsmount *, | |
50 | const char *, unsigned int, struct path *); | |
0bdaea90 | 51 | |
07f3f05c DH |
52 | /* |
53 | * namespace.c | |
54 | */ | |
55 | extern int copy_mount_options(const void __user *, unsigned long *); | |
eca6f534 | 56 | extern int copy_mount_string(const void __user *, char **); |
6d59e7f5 | 57 | |
0f60f240 | 58 | extern struct vfsmount *lookup_mnt(struct path *); |
19a167af | 59 | extern int finish_automount(struct vfsmount *, struct path *); |
6d59e7f5 | 60 | |
4ed5e82f | 61 | extern int sb_prepare_remount_readonly(struct super_block *); |
f03c6599 | 62 | |
6d59e7f5 | 63 | extern void __init mnt_init(void); |
3e93cd67 | 64 | |
eea62f83 | 65 | extern struct lglock vfsmount_lock; |
99b7db7b | 66 | |
eb04c282 JK |
67 | extern int __mnt_want_write(struct vfsmount *); |
68 | extern int __mnt_want_write_file(struct file *); | |
69 | extern void __mnt_drop_write(struct vfsmount *); | |
70 | extern void __mnt_drop_write_file(struct file *); | |
47cd813f | 71 | |
3e93cd67 AV |
72 | /* |
73 | * fs_struct.c | |
74 | */ | |
dcf787f3 | 75 | extern void chroot_fs_refs(const struct path *, const struct path *); |
864d7c4c | 76 | |
77 | /* | |
78 | * file_table.c | |
79 | */ | |
d996b62a NP |
80 | extern void file_sb_list_add(struct file *f, struct super_block *sb); |
81 | extern void file_sb_list_del(struct file *f); | |
864d7c4c | 82 | extern void mark_files_ro(struct super_block *); |
e81e3f4d | 83 | extern struct file *get_empty_filp(void); |
62c6943b AV |
84 | |
85 | /* | |
86 | * super.c | |
87 | */ | |
88 | extern int do_remount_sb(struct super_block *, int, void *, int); | |
12ad3ab6 | 89 | extern bool grab_super_passive(struct super_block *sb); |
9d412a43 AV |
90 | extern struct dentry *mount_fs(struct file_system_type *, |
91 | int, const char *, void *); | |
cf31e70d | 92 | extern struct super_block *user_get_super(dev_t); |
482928d5 AV |
93 | |
94 | /* | |
95 | * open.c | |
96 | */ | |
47c805dc AV |
97 | struct open_flags { |
98 | int open_flag; | |
a218d0fd | 99 | umode_t mode; |
47c805dc AV |
100 | int acc_mode; |
101 | int intent; | |
f9652e10 | 102 | int lookup_flags; |
47c805dc | 103 | }; |
669abf4e | 104 | extern struct file *do_filp_open(int dfd, struct filename *pathname, |
f9652e10 | 105 | const struct open_flags *op); |
73d049a4 | 106 | extern struct file *do_file_open_root(struct dentry *, struct vfsmount *, |
f9652e10 | 107 | const char *, const struct open_flags *); |
a8dade34 | 108 | |
becfd1f3 AK |
109 | extern long do_handle_open(int mountdirfd, |
110 | struct file_handle __user *ufh, int open_flag); | |
90ad1a8e | 111 | extern int open_check_o_direct(struct file *f); |
becfd1f3 | 112 | |
a8dade34 AV |
113 | /* |
114 | * inode.c | |
115 | */ | |
55fa6091 | 116 | extern spinlock_t inode_sb_list_lock; |
9b17c623 DC |
117 | extern long prune_icache_sb(struct super_block *sb, unsigned long nr_to_scan, |
118 | int nid); | |
4eff96dd | 119 | extern void inode_add_lru(struct inode *inode); |
55fa6091 | 120 | |
a66979ab DC |
121 | /* |
122 | * fs-writeback.c | |
123 | */ | |
124 | extern void inode_wb_list_del(struct inode *inode); | |
125 | ||
3942c07c | 126 | extern long get_nr_dirty_inodes(void); |
a4cdbd8b | 127 | extern void evict_inodes(struct super_block *); |
93b270f7 | 128 | extern int invalidate_inodes(struct super_block *, bool); |
a4464dbc AV |
129 | |
130 | /* | |
131 | * dcache.c | |
132 | */ | |
133 | extern struct dentry *__d_alloc(struct super_block *, const struct qstr *); | |
eed81007 | 134 | extern int d_set_mounted(struct dentry *dentry); |
9b17c623 DC |
135 | extern long prune_dcache_sb(struct super_block *sb, unsigned long nr_to_scan, |
136 | int nid); | |
06ae43f3 AV |
137 | |
138 | /* | |
139 | * read_write.c | |
140 | */ | |
141 | extern ssize_t __kernel_write(struct file *, const char *, size_t, loff_t *); | |
68d70d03 | 142 | extern int rw_verify_area(int, struct file *, const loff_t *, size_t); |
599a0ac1 | 143 | |
7995bd28 AV |
144 | /* |
145 | * splice.c | |
146 | */ | |
147 | extern long do_splice_direct(struct file *in, loff_t *ppos, struct file *out, | |
148 | loff_t *opos, size_t len, unsigned int flags); | |
149 | ||
599a0ac1 AV |
150 | /* |
151 | * pipe.c | |
152 | */ | |
153 | extern const struct file_operations pipefifo_fops; |