Linux kernel mirror (for testing)
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1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * The proc filesystem constants/structures
4 */
5#ifndef _LINUX_PROC_FS_H
6#define _LINUX_PROC_FS_H
7
8#include <linux/types.h>
9#include <linux/fs.h>
10
11struct proc_dir_entry;
12
13#ifdef CONFIG_PROC_FS
14
15extern void proc_root_init(void);
16extern void proc_flush_task(struct task_struct *);
17
18extern struct proc_dir_entry *proc_symlink(const char *,
19 struct proc_dir_entry *, const char *);
20extern struct proc_dir_entry *proc_mkdir(const char *, struct proc_dir_entry *);
21extern struct proc_dir_entry *proc_mkdir_data(const char *, umode_t,
22 struct proc_dir_entry *, void *);
23extern struct proc_dir_entry *proc_mkdir_mode(const char *, umode_t,
24 struct proc_dir_entry *);
25struct proc_dir_entry *proc_create_mount_point(const char *name);
26
27extern struct proc_dir_entry *proc_create_data(const char *, umode_t,
28 struct proc_dir_entry *,
29 const struct file_operations *,
30 void *);
31
32struct proc_dir_entry *proc_create(const char *name, umode_t mode, struct proc_dir_entry *parent, const struct file_operations *proc_fops);
33extern void proc_set_size(struct proc_dir_entry *, loff_t);
34extern void proc_set_user(struct proc_dir_entry *, kuid_t, kgid_t);
35extern void *PDE_DATA(const struct inode *);
36extern void *proc_get_parent_data(const struct inode *);
37extern void proc_remove(struct proc_dir_entry *);
38extern void remove_proc_entry(const char *, struct proc_dir_entry *);
39extern int remove_proc_subtree(const char *, struct proc_dir_entry *);
40
41#else /* CONFIG_PROC_FS */
42
43static inline void proc_root_init(void)
44{
45}
46
47static inline void proc_flush_task(struct task_struct *task)
48{
49}
50
51static inline struct proc_dir_entry *proc_symlink(const char *name,
52 struct proc_dir_entry *parent,const char *dest) { return NULL;}
53static inline struct proc_dir_entry *proc_mkdir(const char *name,
54 struct proc_dir_entry *parent) {return NULL;}
55static inline struct proc_dir_entry *proc_create_mount_point(const char *name) { return NULL; }
56static inline struct proc_dir_entry *proc_mkdir_data(const char *name,
57 umode_t mode, struct proc_dir_entry *parent, void *data) { return NULL; }
58static inline struct proc_dir_entry *proc_mkdir_mode(const char *name,
59 umode_t mode, struct proc_dir_entry *parent) { return NULL; }
60#define proc_create(name, mode, parent, proc_fops) ({NULL;})
61#define proc_create_data(name, mode, parent, proc_fops, data) ({NULL;})
62
63static inline void proc_set_size(struct proc_dir_entry *de, loff_t size) {}
64static inline void proc_set_user(struct proc_dir_entry *de, kuid_t uid, kgid_t gid) {}
65static inline void *PDE_DATA(const struct inode *inode) {BUG(); return NULL;}
66static inline void *proc_get_parent_data(const struct inode *inode) { BUG(); return NULL; }
67
68static inline void proc_remove(struct proc_dir_entry *de) {}
69#define remove_proc_entry(name, parent) do {} while (0)
70static inline int remove_proc_subtree(const char *name, struct proc_dir_entry *parent) { return 0; }
71
72#endif /* CONFIG_PROC_FS */
73
74struct net;
75
76static inline struct proc_dir_entry *proc_net_mkdir(
77 struct net *net, const char *name, struct proc_dir_entry *parent)
78{
79 return proc_mkdir_data(name, 0, parent, net);
80}
81
82struct ns_common;
83int open_related_ns(struct ns_common *ns,
84 struct ns_common *(*get_ns)(struct ns_common *ns));
85
86#endif /* _LINUX_PROC_FS_H */