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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; |
5e6d12b2 | 18 | |
07f3f05c DH |
19 | /* |
20 | * block_dev.c | |
21 | */ | |
9361401e | 22 | #ifdef CONFIG_BLOCK |
07f3f05c DH |
23 | extern void __init bdev_cache_init(void); |
24 | ||
5cee5815 JK |
25 | extern int __sync_blockdev(struct block_device *bdev, int wait); |
26 | ||
9361401e | 27 | #else |
5e6d12b2 AM |
28 | static inline void bdev_cache_init(void) |
29 | { | |
30 | } | |
9361401e | 31 | |
5cee5815 JK |
32 | static inline int __sync_blockdev(struct block_device *bdev, int wait) |
33 | { | |
34 | return 0; | |
35 | } | |
9361401e | 36 | #endif |
7b0de42d | 37 | |
4db96b71 AM |
38 | /* |
39 | * buffer.c | |
40 | */ | |
ae259a9c CH |
41 | extern int __block_write_begin_int(struct page *page, loff_t pos, unsigned len, |
42 | get_block_t *get_block, struct iomap *iomap); | |
4db96b71 | 43 | |
07f3f05c DH |
44 | /* |
45 | * char_dev.c | |
46 | */ | |
47 | extern void __init chrdev_init(void); | |
48 | ||
9bc61ab1 DH |
49 | /* |
50 | * fs_context.c | |
51 | */ | |
ecdab150 | 52 | extern const struct fs_context_operations legacy_fs_context_ops; |
9bc61ab1 | 53 | extern int parse_monolithic_mount_data(struct fs_context *, void *); |
c9ce29ed | 54 | extern void fc_drop_locked(struct fs_context *); |
ecdab150 DH |
55 | extern void vfs_clean_context(struct fs_context *fc); |
56 | extern int finish_clean_context(struct fs_context *fc); | |
9bc61ab1 | 57 | |
0bdaea90 DH |
58 | /* |
59 | * namei.c | |
60 | */ | |
31d921c7 DH |
61 | extern int filename_lookup(int dfd, struct filename *name, unsigned flags, |
62 | struct path *path, struct path *root); | |
197df04c AV |
63 | extern int user_path_mountpoint_at(int, const char __user *, unsigned int, struct path *); |
64 | extern int vfs_path_lookup(struct dentry *, struct vfsmount *, | |
65 | const char *, unsigned int, struct path *); | |
87c4e192 DB |
66 | long do_mknodat(int dfd, const char __user *filename, umode_t mode, |
67 | unsigned int dev); | |
0101db7a | 68 | long do_mkdirat(int dfd, const char __user *pathname, umode_t mode); |
f459dffa | 69 | long do_rmdir(int dfd, const char __user *pathname); |
da2f1362 | 70 | long do_unlinkat(int dfd, struct filename *name); |
b724e846 DB |
71 | long do_symlinkat(const char __user *oldname, int newdfd, |
72 | const char __user *newname); | |
46ea89eb DB |
73 | int do_linkat(int olddfd, const char __user *oldname, int newdfd, |
74 | const char __user *newname, int flags); | |
0bdaea90 | 75 | |
07f3f05c DH |
76 | /* |
77 | * namespace.c | |
78 | */ | |
b40ef869 | 79 | extern void *copy_mount_options(const void __user *); |
b8850d1f | 80 | extern char *copy_mount_string(const void __user *); |
6d59e7f5 | 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 *); |
3e93cd67 AV |
93 | /* |
94 | * fs_struct.c | |
95 | */ | |
dcf787f3 | 96 | extern void chroot_fs_refs(const struct path *, const struct path *); |
864d7c4c NP |
97 | |
98 | /* | |
99 | * file_table.c | |
100 | */ | |
ea73ea72 | 101 | extern struct file *alloc_empty_file(int, const struct cred *); |
d3b1084d | 102 | extern struct file *alloc_empty_file_noaccount(int, const struct cred *); |
62c6943b AV |
103 | |
104 | /* | |
105 | * super.c | |
106 | */ | |
8d0347f6 | 107 | extern int reconfigure_super(struct fs_context *); |
eb6ef3df | 108 | extern bool trylock_super(struct super_block *sb); |
cf31e70d | 109 | extern struct super_block *user_get_super(dev_t); |
20284ab7 | 110 | extern bool mount_capable(struct fs_context *); |
482928d5 AV |
111 | |
112 | /* | |
113 | * open.c | |
114 | */ | |
47c805dc AV |
115 | struct open_flags { |
116 | int open_flag; | |
a218d0fd | 117 | umode_t mode; |
47c805dc AV |
118 | int acc_mode; |
119 | int intent; | |
f9652e10 | 120 | int lookup_flags; |
47c805dc | 121 | }; |
669abf4e | 122 | extern struct file *do_filp_open(int dfd, struct filename *pathname, |
f9652e10 | 123 | const struct open_flags *op); |
73d049a4 | 124 | extern struct file *do_file_open_root(struct dentry *, struct vfsmount *, |
f9652e10 | 125 | const char *, const struct open_flags *); |
35cb6d54 JA |
126 | extern struct open_how build_open_how(int flags, umode_t mode); |
127 | extern int build_open_flags(const struct open_how *how, struct open_flags *op); | |
a8dade34 | 128 | |
411d9475 | 129 | long do_sys_ftruncate(unsigned int fd, loff_t length, int small); |
cbfe20f5 | 130 | long do_faccessat(int dfd, const char __user *filename, int mode); |
03450e27 | 131 | int do_fchmodat(int dfd, const char __user *filename, umode_t mode); |
55731b3c DB |
132 | int do_fchownat(int dfd, const char __user *filename, uid_t user, gid_t group, |
133 | int flag); | |
03450e27 | 134 | |
ae2bb293 | 135 | extern int vfs_open(const struct path *, struct file *); |
becfd1f3 | 136 | |
a8dade34 AV |
137 | /* |
138 | * inode.c | |
139 | */ | |
503c358c | 140 | extern long prune_icache_sb(struct super_block *sb, struct shrink_control *sc); |
4eff96dd | 141 | extern void inode_add_lru(struct inode *inode); |
f0fce87c | 142 | extern int dentry_needs_remove_privs(struct dentry *dentry); |
55fa6091 | 143 | |
a66979ab DC |
144 | /* |
145 | * fs-writeback.c | |
146 | */ | |
c7f54084 | 147 | extern void inode_io_list_del(struct inode *inode); |
a66979ab | 148 | |
3942c07c | 149 | extern long get_nr_dirty_inodes(void); |
93b270f7 | 150 | extern int invalidate_inodes(struct super_block *, bool); |
a4464dbc AV |
151 | |
152 | /* | |
153 | * dcache.c | |
154 | */ | |
eed81007 | 155 | extern int d_set_mounted(struct dentry *dentry); |
503c358c | 156 | extern long prune_dcache_sb(struct super_block *sb, struct shrink_control *sc); |
ba65dc5e | 157 | extern struct dentry *d_alloc_cursor(struct dentry *); |
ab1152dd | 158 | extern struct dentry * d_alloc_pseudo(struct super_block *, const struct qstr *); |
7e5f7bb0 | 159 | extern char *simple_dname(struct dentry *, char *, int); |
9bdebc2b AV |
160 | extern void dput_to_list(struct dentry *, struct list_head *); |
161 | extern void shrink_dentry_list(struct list_head *); | |
06ae43f3 AV |
162 | |
163 | /* | |
164 | * read_write.c | |
165 | */ | |
68d70d03 | 166 | extern int rw_verify_area(int, struct file *, const loff_t *, size_t); |
599a0ac1 AV |
167 | |
168 | /* | |
169 | * pipe.c | |
170 | */ | |
171 | extern const struct file_operations pipefifo_fops; | |
8fa1f1c2 AV |
172 | |
173 | /* | |
174 | * fs_pin.c | |
175 | */ | |
fdab684d | 176 | extern void group_pin_kill(struct hlist_head *p); |
8fa1f1c2 | 177 | extern void mnt_pin_kill(struct mount *m); |
e149ed2b AV |
178 | |
179 | /* | |
180 | * fs/nsfs.c | |
181 | */ | |
be218aa2 | 182 | extern const struct dentry_operations ns_dentry_operations; |
66cf191f | 183 | |
ec1b8260 CH |
184 | /* direct-io.c: */ |
185 | int sb_init_dio_done_wq(struct super_block *sb); | |
3934e36f JA |
186 | |
187 | /* | |
188 | * fs/stat.c: | |
189 | */ | |
190 | unsigned vfs_stat_set_lookup_flags(unsigned *lookup_flags, int flags); | |
191 | int cp_statx(const struct kstat *stat, struct statx __user *buffer); |