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 | ||
5e6d12b2 | 12 | struct super_block; |
9d412a43 | 13 | struct file_system_type; |
ae259a9c | 14 | struct iomap; |
befb503c | 15 | struct iomap_ops; |
a6f76f23 | 16 | struct linux_binprm; |
3e93cd67 | 17 | struct path; |
c7105365 | 18 | struct mount; |
503c358c | 19 | struct shrink_control; |
5e6d12b2 | 20 | |
07f3f05c DH |
21 | /* |
22 | * block_dev.c | |
23 | */ | |
9361401e | 24 | #ifdef CONFIG_BLOCK |
07f3f05c DH |
25 | extern void __init bdev_cache_init(void); |
26 | ||
5cee5815 JK |
27 | extern int __sync_blockdev(struct block_device *bdev, int wait); |
28 | ||
9361401e | 29 | #else |
5e6d12b2 AM |
30 | static inline void bdev_cache_init(void) |
31 | { | |
32 | } | |
9361401e | 33 | |
5cee5815 JK |
34 | static inline int __sync_blockdev(struct block_device *bdev, int wait) |
35 | { | |
36 | return 0; | |
37 | } | |
9361401e | 38 | #endif |
7b0de42d | 39 | |
4db96b71 AM |
40 | /* |
41 | * buffer.c | |
42 | */ | |
43 | extern void guard_bio_eod(int rw, struct bio *bio); | |
ae259a9c CH |
44 | extern int __block_write_begin_int(struct page *page, loff_t pos, unsigned len, |
45 | get_block_t *get_block, struct iomap *iomap); | |
4db96b71 | 46 | |
07f3f05c DH |
47 | /* |
48 | * char_dev.c | |
49 | */ | |
50 | extern void __init chrdev_init(void); | |
51 | ||
0bdaea90 DH |
52 | /* |
53 | * namei.c | |
54 | */ | |
197df04c AV |
55 | extern int user_path_mountpoint_at(int, const char __user *, unsigned int, struct path *); |
56 | extern int vfs_path_lookup(struct dentry *, struct vfsmount *, | |
57 | const char *, unsigned int, struct path *); | |
0bdaea90 | 58 | |
07f3f05c DH |
59 | /* |
60 | * namespace.c | |
61 | */ | |
b40ef869 | 62 | extern void *copy_mount_options(const void __user *); |
b8850d1f | 63 | extern char *copy_mount_string(const void __user *); |
6d59e7f5 | 64 | |
ca71cf71 | 65 | extern struct vfsmount *lookup_mnt(const struct path *); |
19a167af | 66 | extern int finish_automount(struct vfsmount *, struct path *); |
6d59e7f5 | 67 | |
4ed5e82f | 68 | extern int sb_prepare_remount_readonly(struct super_block *); |
f03c6599 | 69 | |
6d59e7f5 | 70 | extern void __init mnt_init(void); |
3e93cd67 | 71 | |
eb04c282 JK |
72 | extern int __mnt_want_write(struct vfsmount *); |
73 | extern int __mnt_want_write_file(struct file *); | |
7c6893e3 | 74 | extern int mnt_want_write_file_path(struct file *); |
eb04c282 JK |
75 | extern void __mnt_drop_write(struct vfsmount *); |
76 | extern void __mnt_drop_write_file(struct file *); | |
7c6893e3 | 77 | extern void mnt_drop_write_file_path(struct file *); |
47cd813f | 78 | |
3e93cd67 AV |
79 | /* |
80 | * fs_struct.c | |
81 | */ | |
dcf787f3 | 82 | extern void chroot_fs_refs(const struct path *, const struct path *); |
864d7c4c | 83 | |
84 | /* | |
85 | * file_table.c | |
86 | */ | |
e81e3f4d | 87 | extern struct file *get_empty_filp(void); |
62c6943b AV |
88 | |
89 | /* | |
90 | * super.c | |
91 | */ | |
92 | extern int do_remount_sb(struct super_block *, int, void *, int); | |
04e61a5b DR |
93 | extern int do_remount_sb2(struct vfsmount *, struct super_block *, int, |
94 | void *, int); | |
eb6ef3df | 95 | extern bool trylock_super(struct super_block *sb); |
9d412a43 | 96 | extern struct dentry *mount_fs(struct file_system_type *, |
04e61a5b | 97 | int, const char *, struct vfsmount *, void *); |
cf31e70d | 98 | extern struct super_block *user_get_super(dev_t); |
482928d5 AV |
99 | |
100 | /* | |
101 | * open.c | |
102 | */ | |
47c805dc AV |
103 | struct open_flags { |
104 | int open_flag; | |
a218d0fd | 105 | umode_t mode; |
47c805dc AV |
106 | int acc_mode; |
107 | int intent; | |
f9652e10 | 108 | int lookup_flags; |
47c805dc | 109 | }; |
669abf4e | 110 | extern struct file *do_filp_open(int dfd, struct filename *pathname, |
f9652e10 | 111 | const struct open_flags *op); |
73d049a4 | 112 | extern struct file *do_file_open_root(struct dentry *, struct vfsmount *, |
f9652e10 | 113 | const char *, const struct open_flags *); |
a8dade34 | 114 | |
90ad1a8e | 115 | extern int open_check_o_direct(struct file *f); |
4bacc9c9 | 116 | extern int vfs_open(const struct path *, struct file *, const struct cred *); |
9a08c352 | 117 | extern struct file *filp_clone_open(struct file *); |
becfd1f3 | 118 | |
a8dade34 AV |
119 | /* |
120 | * inode.c | |
121 | */ | |
503c358c | 122 | extern long prune_icache_sb(struct super_block *sb, struct shrink_control *sc); |
4eff96dd | 123 | extern void inode_add_lru(struct inode *inode); |
f0fce87c | 124 | extern int dentry_needs_remove_privs(struct dentry *dentry); |
55fa6091 | 125 | |
598e3c8f MS |
126 | extern bool __atime_needs_update(const struct path *, struct inode *, bool); |
127 | static inline bool atime_needs_update_rcu(const struct path *path, | |
128 | struct inode *inode) | |
129 | { | |
130 | return __atime_needs_update(path, inode, true); | |
131 | } | |
132 | ||
a66979ab DC |
133 | /* |
134 | * fs-writeback.c | |
135 | */ | |
c7f54084 | 136 | extern void inode_io_list_del(struct inode *inode); |
a66979ab | 137 | |
3942c07c | 138 | extern long get_nr_dirty_inodes(void); |
93b270f7 | 139 | extern int invalidate_inodes(struct super_block *, bool); |
a4464dbc AV |
140 | |
141 | /* | |
142 | * dcache.c | |
143 | */ | |
144 | extern struct dentry *__d_alloc(struct super_block *, const struct qstr *); | |
eed81007 | 145 | extern int d_set_mounted(struct dentry *dentry); |
503c358c | 146 | extern long prune_dcache_sb(struct super_block *sb, struct shrink_control *sc); |
ba65dc5e | 147 | extern struct dentry *d_alloc_cursor(struct dentry *); |
06ae43f3 AV |
148 | |
149 | /* | |
150 | * read_write.c | |
151 | */ | |
68d70d03 | 152 | extern int rw_verify_area(int, struct file *, const loff_t *, size_t); |
599a0ac1 AV |
153 | |
154 | /* | |
155 | * pipe.c | |
156 | */ | |
157 | extern const struct file_operations pipefifo_fops; | |
8fa1f1c2 AV |
158 | |
159 | /* | |
160 | * fs_pin.c | |
161 | */ | |
fdab684d | 162 | extern void group_pin_kill(struct hlist_head *p); |
8fa1f1c2 | 163 | extern void mnt_pin_kill(struct mount *m); |
e149ed2b AV |
164 | |
165 | /* | |
166 | * fs/nsfs.c | |
167 | */ | |
be218aa2 | 168 | extern const struct dentry_operations ns_dentry_operations; |
66cf191f AV |
169 | |
170 | /* | |
171 | * fs/ioctl.c | |
172 | */ | |
173 | extern int do_vfs_ioctl(struct file *file, unsigned int fd, unsigned int cmd, | |
174 | unsigned long arg); | |
175 | extern long vfs_ioctl(struct file *file, unsigned int cmd, unsigned long arg); | |
befb503c CH |
176 | |
177 | /* | |
178 | * iomap support: | |
179 | */ | |
180 | typedef loff_t (*iomap_actor_t)(struct inode *inode, loff_t pos, loff_t len, | |
181 | void *data, struct iomap *iomap); | |
182 | ||
183 | loff_t iomap_apply(struct inode *inode, loff_t pos, loff_t length, | |
8ff6daa1 | 184 | unsigned flags, const struct iomap_ops *ops, void *data, |
befb503c | 185 | iomap_actor_t actor); |
ec1b8260 CH |
186 | |
187 | /* direct-io.c: */ | |
188 | int sb_init_dio_done_wq(struct super_block *sb); |