LXR linux/fs/proc/internal.h

   1/* internal.h: internal procfs definitions
   2 *
   3 * Copyright (C) 2004 Red Hat, Inc. All Rights Reserved.
   4 * Written by David Howells (dhowells@redhat.com)
   5 *
   6 * This program is free software; you can redistribute it and/or
   7 * modify it under the terms of the GNU General Public License
   8 * as published by the Free Software Foundation; either version
   9 * 2 of the License, or (at your option) any later version.
  10 */
  11
  12#include <linux/proc_fs.h>
  13
  14#ifdef CONFIG_PROC_SYSCTL
  15extern int proc_sys_init(void);
  16#else
  17static inline void proc_sys_init(void) { }
  18#endif
  19#ifdef CONFIG_NET
  20extern int proc_net_init(void);
  21#else
  22static inline int proc_net_init(void) { return 0; }
  23#endif
  24
  25struct vmalloc_info {
  26        unsigned long   used;
  27        unsigned long   largest_chunk;
  28};
  29
  30extern struct mm_struct *mm_for_maps(struct task_struct *);
  31
  32#ifdef CONFIG_MMU
  33#define VMALLOC_TOTAL (VMALLOC_END - VMALLOC_START)
  34extern void get_vmalloc_info(struct vmalloc_info *vmi);
  35#else
  36
  37#define VMALLOC_TOTAL 0UL
  38#define get_vmalloc_info(vmi)                   \
  39do {                                            \
  40        (vmi)->used = 0;                        \
  41        (vmi)->largest_chunk = 0;               \
  42} while(0)
  43
  44extern int nommu_vma_show(struct seq_file *, struct vm_area_struct *);
  45#endif
  46
  47extern int maps_protect;
  48
  49extern void create_seq_entry(char *name, mode_t mode, const struct file_operations *f);
  50extern int proc_exe_link(struct inode *, struct dentry **, struct vfsmount **);
  51extern int proc_tid_stat(struct task_struct *,  char *);
  52extern int proc_tgid_stat(struct task_struct *, char *);
  53extern int proc_pid_status(struct task_struct *, char *);
  54extern int proc_pid_statm(struct task_struct *, char *);
  55
  56extern const struct file_operations proc_maps_operations;
  57extern const struct file_operations proc_numa_maps_operations;
  58extern const struct file_operations proc_smaps_operations;
  59
  60extern const struct file_operations proc_maps_operations;
  61extern const struct file_operations proc_numa_maps_operations;
  62extern const struct file_operations proc_smaps_operations;
  63
  64
  65void free_proc_entry(struct proc_dir_entry *de);
  66
  67int proc_init_inodecache(void);
  68
  69static inline struct pid *proc_pid(struct inode *inode)
  70{
  71        return PROC_I(inode)->pid;
  72}
  73
  74static inline struct task_struct *get_proc_task(struct inode *inode)
  75{
  76        return get_pid_task(proc_pid(inode), PIDTYPE_PID);
  77}
  78
  79static inline int proc_fd(struct inode *inode)
  80{
  81        return PROC_I(inode)->fd;
  82}
  83