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Commit | Line | Data |
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2874c5fd | 1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
07f3f05c DH |
2 | /* fs/ internal definitions |
3 | * | |
4 | * Copyright (C) 2006 Red Hat, Inc. All Rights Reserved. | |
5 | * Written by David Howells (dhowells@redhat.com) | |
07f3f05c DH |
6 | */ |
7 | ||
5e6d12b2 | 8 | struct super_block; |
9d412a43 | 9 | struct file_system_type; |
ae259a9c | 10 | struct iomap; |
befb503c | 11 | struct iomap_ops; |
a6f76f23 | 12 | struct linux_binprm; |
3e93cd67 | 13 | struct path; |
c7105365 | 14 | struct mount; |
503c358c | 15 | struct shrink_control; |
9bc61ab1 | 16 | struct fs_context; |
2527b284 | 17 | struct user_namespace; |
b964bf53 | 18 | struct pipe_inode_info; |
5e6d12b2 | 19 | |
07f3f05c | 20 | /* |
0dca4462 | 21 | * block/bdev.c |
07f3f05c | 22 | */ |
9361401e | 23 | #ifdef CONFIG_BLOCK |
07f3f05c DH |
24 | extern void __init bdev_cache_init(void); |
25 | ||
5cee5815 | 26 | extern int __sync_blockdev(struct block_device *bdev, int wait); |
3f1266f1 | 27 | void emergency_thaw_bdev(struct super_block *sb); |
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 | } | |
3f1266f1 CH |
37 | static inline int emergency_thaw_bdev(struct super_block *sb) |
38 | { | |
39 | return 0; | |
40 | } | |
3f1266f1 | 41 | #endif /* CONFIG_BLOCK */ |
7b0de42d | 42 | |
4db96b71 AM |
43 | /* |
44 | * buffer.c | |
45 | */ | |
6d49cc85 CH |
46 | int __block_write_begin_int(struct page *page, loff_t pos, unsigned len, |
47 | get_block_t *get_block, const struct iomap *iomap); | |
4db96b71 | 48 | |
07f3f05c DH |
49 | /* |
50 | * char_dev.c | |
51 | */ | |
52 | extern void __init chrdev_init(void); | |
53 | ||
9bc61ab1 DH |
54 | /* |
55 | * fs_context.c | |
56 | */ | |
ecdab150 | 57 | extern const struct fs_context_operations legacy_fs_context_ops; |
9bc61ab1 | 58 | extern int parse_monolithic_mount_data(struct fs_context *, void *); |
ecdab150 DH |
59 | extern void vfs_clean_context(struct fs_context *fc); |
60 | extern int finish_clean_context(struct fs_context *fc); | |
9bc61ab1 | 61 | |
0bdaea90 DH |
62 | /* |
63 | * namei.c | |
64 | */ | |
31d921c7 DH |
65 | extern int filename_lookup(int dfd, struct filename *name, unsigned flags, |
66 | struct path *path, struct path *root); | |
197df04c AV |
67 | extern int vfs_path_lookup(struct dentry *, struct vfsmount *, |
68 | const char *, unsigned int, struct path *); | |
45f30dab DK |
69 | int do_rmdir(int dfd, struct filename *name); |
70 | int do_unlinkat(int dfd, struct filename *name); | |
ba73d987 | 71 | int may_linkat(struct user_namespace *mnt_userns, struct path *link); |
e886663c JA |
72 | int do_renameat2(int olddfd, struct filename *oldname, int newdfd, |
73 | struct filename *newname, unsigned int flags); | |
45f30dab | 74 | int do_mkdirat(int dfd, struct filename *name, umode_t mode); |
7a8721f8 | 75 | int do_symlinkat(struct filename *from, int newdfd, struct filename *to); |
cf30da90 DK |
76 | int do_linkat(int olddfd, struct filename *old, int newdfd, |
77 | struct filename *new, int flags); | |
0bdaea90 | 78 | |
07f3f05c DH |
79 | /* |
80 | * namespace.c | |
81 | */ | |
ca71cf71 | 82 | extern struct vfsmount *lookup_mnt(const struct path *); |
19a167af | 83 | extern int finish_automount(struct vfsmount *, struct path *); |
6d59e7f5 | 84 | |
4ed5e82f | 85 | extern int sb_prepare_remount_readonly(struct super_block *); |
f03c6599 | 86 | |
6d59e7f5 | 87 | extern void __init mnt_init(void); |
3e93cd67 | 88 | |
eb04c282 | 89 | extern int __mnt_want_write_file(struct file *); |
eb04c282 | 90 | extern void __mnt_drop_write_file(struct file *); |
47cd813f | 91 | |
a07b2000 | 92 | extern void dissolve_on_fput(struct vfsmount *); |
c60166f0 CH |
93 | |
94 | int path_mount(const char *dev_name, struct path *path, | |
95 | const char *type_page, unsigned long flags, void *data_page); | |
09267def | 96 | int path_umount(struct path *path, int flags); |
c60166f0 | 97 | |
3e93cd67 AV |
98 | /* |
99 | * fs_struct.c | |
100 | */ | |
dcf787f3 | 101 | extern void chroot_fs_refs(const struct path *, const struct path *); |
864d7c4c NP |
102 | |
103 | /* | |
104 | * file_table.c | |
105 | */ | |
ea73ea72 | 106 | extern struct file *alloc_empty_file(int, const struct cred *); |
d3b1084d | 107 | extern struct file *alloc_empty_file_noaccount(int, const struct cred *); |
62c6943b AV |
108 | |
109 | /* | |
110 | * super.c | |
111 | */ | |
8d0347f6 | 112 | extern int reconfigure_super(struct fs_context *); |
eb6ef3df | 113 | extern bool trylock_super(struct super_block *sb); |
4e7b5671 | 114 | struct super_block *user_get_super(dev_t, bool excl); |
60b49885 | 115 | void put_super(struct super_block *sb); |
20284ab7 | 116 | extern bool mount_capable(struct fs_context *); |
482928d5 AV |
117 | |
118 | /* | |
119 | * open.c | |
120 | */ | |
47c805dc AV |
121 | struct open_flags { |
122 | int open_flag; | |
a218d0fd | 123 | umode_t mode; |
47c805dc AV |
124 | int acc_mode; |
125 | int intent; | |
f9652e10 | 126 | int lookup_flags; |
47c805dc | 127 | }; |
669abf4e | 128 | extern struct file *do_filp_open(int dfd, struct filename *pathname, |
f9652e10 | 129 | const struct open_flags *op); |
ffb37ca3 | 130 | extern struct file *do_file_open_root(const struct path *, |
f9652e10 | 131 | const char *, const struct open_flags *); |
35cb6d54 JA |
132 | extern struct open_how build_open_how(int flags, umode_t mode); |
133 | extern int build_open_flags(const struct open_how *how, struct open_flags *op); | |
53dec2ea | 134 | extern int __close_fd_get_file(unsigned int fd, struct file **res); |
a8dade34 | 135 | |
411d9475 | 136 | long do_sys_ftruncate(unsigned int fd, loff_t length, int small); |
1097742e | 137 | int chmod_common(const struct path *path, umode_t mode); |
55731b3c DB |
138 | int do_fchownat(int dfd, const char __user *filename, uid_t user, gid_t group, |
139 | int flag); | |
b873498f | 140 | int chown_common(const struct path *path, uid_t user, gid_t group); |
ae2bb293 | 141 | extern int vfs_open(const struct path *, struct file *); |
becfd1f3 | 142 | |
a8dade34 AV |
143 | /* |
144 | * inode.c | |
145 | */ | |
503c358c | 146 | extern long prune_icache_sb(struct super_block *sb, struct shrink_control *sc); |
4eff96dd | 147 | extern void inode_add_lru(struct inode *inode); |
f0fce87c | 148 | extern int dentry_needs_remove_privs(struct dentry *dentry); |
55fa6091 | 149 | |
a66979ab DC |
150 | /* |
151 | * fs-writeback.c | |
152 | */ | |
3942c07c | 153 | extern long get_nr_dirty_inodes(void); |
93b270f7 | 154 | extern int invalidate_inodes(struct super_block *, bool); |
a4464dbc AV |
155 | |
156 | /* | |
157 | * dcache.c | |
158 | */ | |
eed81007 | 159 | extern int d_set_mounted(struct dentry *dentry); |
503c358c | 160 | extern long prune_dcache_sb(struct super_block *sb, struct shrink_control *sc); |
ba65dc5e | 161 | extern struct dentry *d_alloc_cursor(struct dentry *); |
ab1152dd | 162 | extern struct dentry * d_alloc_pseudo(struct super_block *, const struct qstr *); |
7e5f7bb0 | 163 | extern char *simple_dname(struct dentry *, char *, int); |
9bdebc2b AV |
164 | extern void dput_to_list(struct dentry *, struct list_head *); |
165 | extern void shrink_dentry_list(struct list_head *); | |
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 | 187 | |
ec1b8260 CH |
188 | /* direct-io.c: */ |
189 | int sb_init_dio_done_wq(struct super_block *sb); | |
3934e36f JA |
190 | |
191 | /* | |
192 | * fs/stat.c: | |
193 | */ | |
0018784f BM |
194 | int do_statx(int dfd, const char __user *filename, unsigned flags, |
195 | unsigned int mask, struct statx __user *buffer); | |
b964bf53 AV |
196 | |
197 | /* | |
198 | * fs/splice.c: | |
199 | */ | |
200 | long splice_file_to_pipe(struct file *in, | |
201 | struct pipe_inode_info *opipe, | |
202 | loff_t *offset, | |
203 | size_t len, unsigned int flags); |