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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; |
9bc61ab1 | 20 | struct fs_context; |
2527b284 | 21 | struct user_namespace; |
5e6d12b2 | 22 | |
07f3f05c DH |
23 | /* |
24 | * block_dev.c | |
25 | */ | |
9361401e | 26 | #ifdef CONFIG_BLOCK |
07f3f05c DH |
27 | extern void __init bdev_cache_init(void); |
28 | ||
5cee5815 JK |
29 | extern int __sync_blockdev(struct block_device *bdev, int wait); |
30 | ||
9361401e | 31 | #else |
5e6d12b2 AM |
32 | static inline void bdev_cache_init(void) |
33 | { | |
34 | } | |
9361401e | 35 | |
5cee5815 JK |
36 | static inline int __sync_blockdev(struct block_device *bdev, int wait) |
37 | { | |
38 | return 0; | |
39 | } | |
9361401e | 40 | #endif |
7b0de42d | 41 | |
4db96b71 AM |
42 | /* |
43 | * buffer.c | |
44 | */ | |
45 | extern void guard_bio_eod(int rw, struct bio *bio); | |
ae259a9c CH |
46 | extern int __block_write_begin_int(struct page *page, loff_t pos, unsigned len, |
47 | get_block_t *get_block, struct iomap *iomap); | |
26ddb1f4 | 48 | void __generic_write_end(struct inode *inode, loff_t pos, unsigned copied, |
a6d639da | 49 | struct page *page); |
4db96b71 | 50 | |
07f3f05c DH |
51 | /* |
52 | * char_dev.c | |
53 | */ | |
54 | extern void __init chrdev_init(void); | |
55 | ||
9bc61ab1 DH |
56 | /* |
57 | * fs_context.c | |
58 | */ | |
ecdab150 | 59 | extern const struct fs_context_operations legacy_fs_context_ops; |
9bc61ab1 | 60 | extern int parse_monolithic_mount_data(struct fs_context *, void *); |
c9ce29ed | 61 | extern void fc_drop_locked(struct fs_context *); |
ecdab150 DH |
62 | extern void vfs_clean_context(struct fs_context *fc); |
63 | extern int finish_clean_context(struct fs_context *fc); | |
9bc61ab1 | 64 | |
0bdaea90 DH |
65 | /* |
66 | * namei.c | |
67 | */ | |
31d921c7 DH |
68 | extern int filename_lookup(int dfd, struct filename *name, unsigned flags, |
69 | struct path *path, struct path *root); | |
197df04c AV |
70 | extern int user_path_mountpoint_at(int, const char __user *, unsigned int, struct path *); |
71 | extern int vfs_path_lookup(struct dentry *, struct vfsmount *, | |
72 | const char *, unsigned int, struct path *); | |
87c4e192 DB |
73 | long do_mknodat(int dfd, const char __user *filename, umode_t mode, |
74 | unsigned int dev); | |
0101db7a | 75 | long do_mkdirat(int dfd, const char __user *pathname, umode_t mode); |
f459dffa | 76 | long do_rmdir(int dfd, const char __user *pathname); |
da2f1362 | 77 | long do_unlinkat(int dfd, struct filename *name); |
b724e846 DB |
78 | long do_symlinkat(const char __user *oldname, int newdfd, |
79 | const char __user *newname); | |
46ea89eb DB |
80 | int do_linkat(int olddfd, const char __user *oldname, int newdfd, |
81 | const char __user *newname, int flags); | |
0bdaea90 | 82 | |
07f3f05c DH |
83 | /* |
84 | * namespace.c | |
85 | */ | |
b40ef869 | 86 | extern void *copy_mount_options(const void __user *); |
b8850d1f | 87 | extern char *copy_mount_string(const void __user *); |
6d59e7f5 | 88 | |
ca71cf71 | 89 | extern struct vfsmount *lookup_mnt(const struct path *); |
19a167af | 90 | extern int finish_automount(struct vfsmount *, struct path *); |
6d59e7f5 | 91 | |
4ed5e82f | 92 | extern int sb_prepare_remount_readonly(struct super_block *); |
f03c6599 | 93 | |
6d59e7f5 | 94 | extern void __init mnt_init(void); |
3e93cd67 | 95 | |
eb04c282 | 96 | extern int __mnt_want_write_file(struct file *); |
eb04c282 | 97 | extern void __mnt_drop_write_file(struct file *); |
47cd813f | 98 | |
a07b2000 | 99 | extern void dissolve_on_fput(struct vfsmount *); |
3e93cd67 AV |
100 | /* |
101 | * fs_struct.c | |
102 | */ | |
dcf787f3 | 103 | extern void chroot_fs_refs(const struct path *, const struct path *); |
864d7c4c | 104 | |
105 | /* | |
106 | * file_table.c | |
107 | */ | |
ea73ea72 | 108 | extern struct file *alloc_empty_file(int, const struct cred *); |
d3b1084d | 109 | extern struct file *alloc_empty_file_noaccount(int, const struct cred *); |
62c6943b AV |
110 | |
111 | /* | |
112 | * super.c | |
113 | */ | |
8d0347f6 | 114 | extern int reconfigure_super(struct fs_context *); |
eb6ef3df | 115 | extern bool trylock_super(struct super_block *sb); |
cf31e70d | 116 | extern struct super_block *user_get_super(dev_t); |
2527b284 | 117 | extern bool mount_capable(struct file_system_type *, struct user_namespace *); |
482928d5 AV |
118 | |
119 | /* | |
120 | * open.c | |
121 | */ | |
47c805dc AV |
122 | struct open_flags { |
123 | int open_flag; | |
a218d0fd | 124 | umode_t mode; |
47c805dc AV |
125 | int acc_mode; |
126 | int intent; | |
f9652e10 | 127 | int lookup_flags; |
47c805dc | 128 | }; |
669abf4e | 129 | extern struct file *do_filp_open(int dfd, struct filename *pathname, |
f9652e10 | 130 | const struct open_flags *op); |
73d049a4 | 131 | extern struct file *do_file_open_root(struct dentry *, struct vfsmount *, |
f9652e10 | 132 | const char *, const struct open_flags *); |
a8dade34 | 133 | |
411d9475 | 134 | long do_sys_ftruncate(unsigned int fd, loff_t length, int small); |
cbfe20f5 | 135 | long do_faccessat(int dfd, const char __user *filename, int mode); |
03450e27 | 136 | int do_fchmodat(int dfd, const char __user *filename, umode_t mode); |
55731b3c DB |
137 | int do_fchownat(int dfd, const char __user *filename, uid_t user, gid_t group, |
138 | int flag); | |
03450e27 | 139 | |
ae2bb293 | 140 | extern int vfs_open(const struct path *, struct file *); |
becfd1f3 | 141 | |
a8dade34 AV |
142 | /* |
143 | * inode.c | |
144 | */ | |
503c358c | 145 | extern long prune_icache_sb(struct super_block *sb, struct shrink_control *sc); |
4eff96dd | 146 | extern void inode_add_lru(struct inode *inode); |
f0fce87c | 147 | extern int dentry_needs_remove_privs(struct dentry *dentry); |
55fa6091 | 148 | |
a66979ab DC |
149 | /* |
150 | * fs-writeback.c | |
151 | */ | |
c7f54084 | 152 | extern void inode_io_list_del(struct inode *inode); |
a66979ab | 153 | |
3942c07c | 154 | extern long get_nr_dirty_inodes(void); |
93b270f7 | 155 | extern int invalidate_inodes(struct super_block *, bool); |
a4464dbc AV |
156 | |
157 | /* | |
158 | * dcache.c | |
159 | */ | |
160 | extern struct dentry *__d_alloc(struct super_block *, const struct qstr *); | |
eed81007 | 161 | extern int d_set_mounted(struct dentry *dentry); |
503c358c | 162 | extern long prune_dcache_sb(struct super_block *sb, struct shrink_control *sc); |
ba65dc5e | 163 | extern struct dentry *d_alloc_cursor(struct dentry *); |
ab1152dd | 164 | extern struct dentry * d_alloc_pseudo(struct super_block *, const struct qstr *); |
7e5f7bb0 | 165 | extern char *simple_dname(struct dentry *, char *, int); |
06ae43f3 AV |
166 | |
167 | /* | |
168 | * read_write.c | |
169 | */ | |
68d70d03 | 170 | extern int rw_verify_area(int, struct file *, const loff_t *, size_t); |
599a0ac1 AV |
171 | |
172 | /* | |
173 | * pipe.c | |
174 | */ | |
175 | extern const struct file_operations pipefifo_fops; | |
8fa1f1c2 AV |
176 | |
177 | /* | |
178 | * fs_pin.c | |
179 | */ | |
fdab684d | 180 | extern void group_pin_kill(struct hlist_head *p); |
8fa1f1c2 | 181 | extern void mnt_pin_kill(struct mount *m); |
e149ed2b AV |
182 | |
183 | /* | |
184 | * fs/nsfs.c | |
185 | */ | |
be218aa2 | 186 | extern const struct dentry_operations ns_dentry_operations; |
66cf191f AV |
187 | |
188 | /* | |
189 | * fs/ioctl.c | |
190 | */ | |
191 | extern int do_vfs_ioctl(struct file *file, unsigned int fd, unsigned int cmd, | |
192 | unsigned long arg); | |
befb503c CH |
193 | |
194 | /* | |
195 | * iomap support: | |
196 | */ | |
197 | typedef loff_t (*iomap_actor_t)(struct inode *inode, loff_t pos, loff_t len, | |
198 | void *data, struct iomap *iomap); | |
199 | ||
200 | loff_t iomap_apply(struct inode *inode, loff_t pos, loff_t length, | |
8ff6daa1 | 201 | unsigned flags, const struct iomap_ops *ops, void *data, |
befb503c | 202 | iomap_actor_t actor); |
ec1b8260 CH |
203 | |
204 | /* direct-io.c: */ | |
205 | int sb_init_dio_done_wq(struct super_block *sb); |