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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 | 25 | extern int __sync_blockdev(struct block_device *bdev, int wait); |
3f1266f1 CH |
26 | void iterate_bdevs(void (*)(struct block_device *, void *), void *); |
27 | void emergency_thaw_bdev(struct super_block *sb); | |
28 | void bd_forget(struct inode *inode); | |
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 | } | |
3f1266f1 CH |
38 | static inline void iterate_bdevs(void (*f)(struct block_device *, void *), |
39 | void *arg) | |
40 | { | |
41 | } | |
42 | static inline int emergency_thaw_bdev(struct super_block *sb) | |
43 | { | |
44 | return 0; | |
45 | } | |
46 | static inline void bd_forget(struct inode *inode) | |
47 | { | |
48 | } | |
49 | #endif /* CONFIG_BLOCK */ | |
7b0de42d | 50 | |
4db96b71 AM |
51 | /* |
52 | * buffer.c | |
53 | */ | |
ae259a9c CH |
54 | extern int __block_write_begin_int(struct page *page, loff_t pos, unsigned len, |
55 | get_block_t *get_block, struct iomap *iomap); | |
4db96b71 | 56 | |
07f3f05c DH |
57 | /* |
58 | * char_dev.c | |
59 | */ | |
60 | extern void __init chrdev_init(void); | |
61 | ||
9bc61ab1 DH |
62 | /* |
63 | * fs_context.c | |
64 | */ | |
ecdab150 | 65 | extern const struct fs_context_operations legacy_fs_context_ops; |
9bc61ab1 | 66 | extern int parse_monolithic_mount_data(struct fs_context *, void *); |
c9ce29ed | 67 | extern void fc_drop_locked(struct fs_context *); |
ecdab150 DH |
68 | extern void vfs_clean_context(struct fs_context *fc); |
69 | extern int finish_clean_context(struct fs_context *fc); | |
9bc61ab1 | 70 | |
0bdaea90 DH |
71 | /* |
72 | * namei.c | |
73 | */ | |
31d921c7 DH |
74 | extern int filename_lookup(int dfd, struct filename *name, unsigned flags, |
75 | struct path *path, struct path *root); | |
197df04c AV |
76 | extern int vfs_path_lookup(struct dentry *, struct vfsmount *, |
77 | const char *, unsigned int, struct path *); | |
87c4e192 DB |
78 | long do_mknodat(int dfd, const char __user *filename, umode_t mode, |
79 | unsigned int dev); | |
0101db7a | 80 | long do_mkdirat(int dfd, const char __user *pathname, umode_t mode); |
f459dffa | 81 | long do_rmdir(int dfd, const char __user *pathname); |
da2f1362 | 82 | long do_unlinkat(int dfd, struct filename *name); |
b724e846 DB |
83 | long do_symlinkat(const char __user *oldname, int newdfd, |
84 | const char __user *newname); | |
46ea89eb DB |
85 | int do_linkat(int olddfd, const char __user *oldname, int newdfd, |
86 | const char __user *newname, int flags); | |
0bdaea90 | 87 | |
07f3f05c DH |
88 | /* |
89 | * namespace.c | |
90 | */ | |
b40ef869 | 91 | extern void *copy_mount_options(const void __user *); |
b8850d1f | 92 | extern char *copy_mount_string(const void __user *); |
6d59e7f5 | 93 | |
ca71cf71 | 94 | extern struct vfsmount *lookup_mnt(const struct path *); |
19a167af | 95 | extern int finish_automount(struct vfsmount *, struct path *); |
6d59e7f5 | 96 | |
4ed5e82f | 97 | extern int sb_prepare_remount_readonly(struct super_block *); |
f03c6599 | 98 | |
6d59e7f5 | 99 | extern void __init mnt_init(void); |
3e93cd67 | 100 | |
eb04c282 | 101 | extern int __mnt_want_write_file(struct file *); |
eb04c282 | 102 | extern void __mnt_drop_write_file(struct file *); |
47cd813f | 103 | |
a07b2000 | 104 | extern void dissolve_on_fput(struct vfsmount *); |
3e93cd67 AV |
105 | /* |
106 | * fs_struct.c | |
107 | */ | |
dcf787f3 | 108 | extern void chroot_fs_refs(const struct path *, const struct path *); |
864d7c4c NP |
109 | |
110 | /* | |
111 | * file_table.c | |
112 | */ | |
ea73ea72 | 113 | extern struct file *alloc_empty_file(int, const struct cred *); |
d3b1084d | 114 | extern struct file *alloc_empty_file_noaccount(int, const struct cred *); |
62c6943b AV |
115 | |
116 | /* | |
117 | * super.c | |
118 | */ | |
8d0347f6 | 119 | extern int reconfigure_super(struct fs_context *); |
eb6ef3df | 120 | extern bool trylock_super(struct super_block *sb); |
cf31e70d | 121 | extern struct super_block *user_get_super(dev_t); |
20284ab7 | 122 | extern bool mount_capable(struct fs_context *); |
482928d5 AV |
123 | |
124 | /* | |
125 | * open.c | |
126 | */ | |
47c805dc AV |
127 | struct open_flags { |
128 | int open_flag; | |
a218d0fd | 129 | umode_t mode; |
47c805dc AV |
130 | int acc_mode; |
131 | int intent; | |
f9652e10 | 132 | int lookup_flags; |
47c805dc | 133 | }; |
669abf4e | 134 | extern struct file *do_filp_open(int dfd, struct filename *pathname, |
f9652e10 | 135 | const struct open_flags *op); |
73d049a4 | 136 | extern struct file *do_file_open_root(struct dentry *, struct vfsmount *, |
f9652e10 | 137 | const char *, const struct open_flags *); |
35cb6d54 JA |
138 | extern struct open_how build_open_how(int flags, umode_t mode); |
139 | extern int build_open_flags(const struct open_how *how, struct open_flags *op); | |
a8dade34 | 140 | |
411d9475 | 141 | long do_sys_ftruncate(unsigned int fd, loff_t length, int small); |
03450e27 | 142 | int do_fchmodat(int dfd, const char __user *filename, umode_t mode); |
55731b3c DB |
143 | int do_fchownat(int dfd, const char __user *filename, uid_t user, gid_t group, |
144 | int flag); | |
03450e27 | 145 | |
ae2bb293 | 146 | extern int vfs_open(const struct path *, struct file *); |
becfd1f3 | 147 | |
a8dade34 AV |
148 | /* |
149 | * inode.c | |
150 | */ | |
503c358c | 151 | extern long prune_icache_sb(struct super_block *sb, struct shrink_control *sc); |
4eff96dd | 152 | extern void inode_add_lru(struct inode *inode); |
f0fce87c | 153 | extern int dentry_needs_remove_privs(struct dentry *dentry); |
55fa6091 | 154 | |
a66979ab DC |
155 | /* |
156 | * fs-writeback.c | |
157 | */ | |
3942c07c | 158 | extern long get_nr_dirty_inodes(void); |
93b270f7 | 159 | extern int invalidate_inodes(struct super_block *, bool); |
a4464dbc AV |
160 | |
161 | /* | |
162 | * dcache.c | |
163 | */ | |
eed81007 | 164 | extern int d_set_mounted(struct dentry *dentry); |
503c358c | 165 | extern long prune_dcache_sb(struct super_block *sb, struct shrink_control *sc); |
ba65dc5e | 166 | extern struct dentry *d_alloc_cursor(struct dentry *); |
ab1152dd | 167 | extern struct dentry * d_alloc_pseudo(struct super_block *, const struct qstr *); |
7e5f7bb0 | 168 | extern char *simple_dname(struct dentry *, char *, int); |
9bdebc2b AV |
169 | extern void dput_to_list(struct dentry *, struct list_head *); |
170 | extern void shrink_dentry_list(struct list_head *); | |
06ae43f3 AV |
171 | |
172 | /* | |
173 | * read_write.c | |
174 | */ | |
68d70d03 | 175 | extern int rw_verify_area(int, struct file *, const loff_t *, size_t); |
599a0ac1 AV |
176 | |
177 | /* | |
178 | * pipe.c | |
179 | */ | |
180 | extern const struct file_operations pipefifo_fops; | |
8fa1f1c2 AV |
181 | |
182 | /* | |
183 | * fs_pin.c | |
184 | */ | |
fdab684d | 185 | extern void group_pin_kill(struct hlist_head *p); |
8fa1f1c2 | 186 | extern void mnt_pin_kill(struct mount *m); |
e149ed2b AV |
187 | |
188 | /* | |
189 | * fs/nsfs.c | |
190 | */ | |
be218aa2 | 191 | extern const struct dentry_operations ns_dentry_operations; |
66cf191f | 192 | |
ec1b8260 CH |
193 | /* direct-io.c: */ |
194 | int sb_init_dio_done_wq(struct super_block *sb); | |
3934e36f JA |
195 | |
196 | /* | |
197 | * fs/stat.c: | |
198 | */ | |
0018784f BM |
199 | int do_statx(int dfd, const char __user *filename, unsigned flags, |
200 | unsigned int mask, struct statx __user *buffer); |