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 extern int proc_sys_init(void);
  15
  16 struct vmalloc_info {
  17         unsigned long   used;
  18         unsigned long   largest_chunk;
  19 };
  20
  21 #ifdef CONFIG_MMU
  22 #define VMALLOC_TOTAL (VMALLOC_END - VMALLOC_START)
  23 extern void get_vmalloc_info(struct vmalloc_info *vmi);
  24 #else
  25
  26 #define VMALLOC_TOTAL 0UL
  27 #define get_vmalloc_info(vmi)                   \
  28 do {                                            \
  29         (vmi)->used = 0;                        \
  30         (vmi)->largest_chunk = 0;               \
  31 } while(0)
  32
  33 extern int nommu_vma_show(struct seq_file *, struct vm_area_struct *);
  34 #endif
  35
  36 extern void create_seq_entry(char *name, mode_t mode, const struct file_operations *f);
  37 extern int proc_exe_link(struct inode *, struct dentry **, struct vfsmount **);
  38 extern int proc_tid_stat(struct task_struct *,  char *);
  39 extern int proc_tgid_stat(struct task_struct *, char *);
  40 extern int proc_pid_status(struct task_struct *, char *);
  41 extern int proc_pid_statm(struct task_struct *, char *);
  42
  43 extern const struct file_operations proc_maps_operations;
  44 extern const struct file_operations proc_numa_maps_operations;
  45 extern const struct file_operations proc_smaps_operations;
  46
  47 extern const struct file_operations proc_maps_operations;
  48 extern const struct file_operations proc_numa_maps_operations;
  49 extern const struct file_operations proc_smaps_operations;
  50
  51
  52 void free_proc_entry(struct proc_dir_entry *de);
  53
  54 int proc_init_inodecache(void);
  55
  56 static inline struct pid *proc_pid(struct inode *inode)
  57 {
  58         return PROC_I(inode)->pid;
  59 }
  60
  61 static inline struct task_struct *get_proc_task(struct inode *inode)
  62 {
  63         return get_pid_task(proc_pid(inode), PIDTYPE_PID);
  64 }
  65
  66 static inline int proc_fd(struct inode *inode)
  67 {
  68         return PROC_I(inode)->fd;
  69 }