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
20struct vmalloc_info {
21	unsigned long	used;
22	unsigned long	largest_chunk;
23};
24
25#ifdef CONFIG_MMU
26#define VMALLOC_TOTAL (VMALLOC_END - VMALLOC_START)
27extern void get_vmalloc_info(struct vmalloc_info *vmi);
28#else
29
30#define VMALLOC_TOTAL 0UL
31#define get_vmalloc_info(vmi)			\
32do {						\
33	(vmi)->used = 0;			\
34	(vmi)->largest_chunk = 0;		\
35} while(0)
36
37extern int nommu_vma_show(struct seq_file *, struct vm_area_struct *);
38#endif
39
40extern int maps_protect;
41
42extern void create_seq_entry(char *name, mode_t mode, const struct file_operations *f);
43extern int proc_exe_link(struct inode *, struct dentry **, struct vfsmount **);
44extern int proc_tid_stat(struct task_struct *,  char *);
45extern int proc_tgid_stat(struct task_struct *, char *);
46extern int proc_pid_status(struct task_struct *, char *);
47extern int proc_pid_statm(struct task_struct *, char *);
48
49extern const struct file_operations proc_maps_operations;
50extern const struct file_operations proc_numa_maps_operations;
51extern const struct file_operations proc_smaps_operations;
52
53extern const struct file_operations proc_maps_operations;
54extern const struct file_operations proc_numa_maps_operations;
55extern const struct file_operations proc_smaps_operations;
56
57
58void free_proc_entry(struct proc_dir_entry *de);
59
60int proc_init_inodecache(void);
61
62static inline struct pid *proc_pid(struct inode *inode)
63{
64	return PROC_I(inode)->pid;
65}
66
67static inline struct task_struct *get_proc_task(struct inode *inode)
68{
69	return get_pid_task(proc_pid(inode), PIDTYPE_PID);
70}
71
72static inline int proc_fd(struct inode *inode)
73{
74	return PROC_I(inode)->fd;
75}
76