LXR linux/include/linux/proc

   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 */
  87