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Linus Torvalds1da177e2005-04-16 15:20:36 -07001#ifndef _LINUX_RESOURCE_H
2#define _LINUX_RESOURCE_H
3
4#include <linux/time.h>
5
Adrian Bunk83cc5ed2006-06-25 05:47:41 -07006struct task_struct;
7
Linus Torvalds1da177e2005-04-16 15:20:36 -07008/*
9 * Resource control/accounting header file for linux
10 */
11
12/*
13 * Definition of struct rusage taken from BSD 4.3 Reno
14 *
15 * We don't support all of these yet, but we might as well have them....
16 * Otherwise, each time we add new items, programs which depend on this
17 * structure will lose. This reduces the chances of that happening.
18 */
19#define RUSAGE_SELF 0
20#define RUSAGE_CHILDREN (-1)
21#define RUSAGE_BOTH (-2) /* sys_wait4() uses this */
22
23struct rusage {
24 struct timeval ru_utime; /* user time used */
25 struct timeval ru_stime; /* system time used */
26 long ru_maxrss; /* maximum resident set size */
27 long ru_ixrss; /* integral shared memory size */
28 long ru_idrss; /* integral unshared data size */
29 long ru_isrss; /* integral unshared stack size */
30 long ru_minflt; /* page reclaims */
31 long ru_majflt; /* page faults */
32 long ru_nswap; /* swaps */
33 long ru_inblock; /* block input operations */
34 long ru_oublock; /* block output operations */
35 long ru_msgsnd; /* messages sent */
36 long ru_msgrcv; /* messages received */
37 long ru_nsignals; /* signals received */
38 long ru_nvcsw; /* voluntary context switches */
39 long ru_nivcsw; /* involuntary " */
40};
41
42struct rlimit {
43 unsigned long rlim_cur;
44 unsigned long rlim_max;
45};
46
47#define PRIO_MIN (-20)
48#define PRIO_MAX 20
49
50#define PRIO_PROCESS 0
51#define PRIO_PGRP 1
52#define PRIO_USER 2
53
54/*
55 * Limit the stack by to some sane default: root can always
56 * increase this limit if needed.. 8MB seems reasonable.
57 */
58#define _STK_LIM (8*1024*1024)
59
60/*
61 * GPG wants 32kB of mlocked memory, to make sure pass phrases
62 * and other sensitive information are never written to disk.
63 */
64#define MLOCK_LIMIT (8 * PAGE_SIZE)
65
66/*
67 * Due to binary compatibility, the actual resource numbers
68 * may be different for different linux versions..
69 */
70#include <asm/resource.h>
71
Adrian Bunk83cc5ed2006-06-25 05:47:41 -070072int getrusage(struct task_struct *p, int who, struct rusage __user *ru);
73
Linus Torvalds1da177e2005-04-16 15:20:36 -070074#endif