blob: 88d36f9145bacfa34ee6c32823413b09715e6ef2 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001#ifndef _LINUX_RESOURCE_H
2#define _LINUX_RESOURCE_H
3
4#include <linux/time.h>
5
6/*
7 * Resource control/accounting header file for linux
8 */
9
10/*
11 * Definition of struct rusage taken from BSD 4.3 Reno
12 *
13 * We don't support all of these yet, but we might as well have them....
14 * Otherwise, each time we add new items, programs which depend on this
15 * structure will lose. This reduces the chances of that happening.
16 */
17#define RUSAGE_SELF 0
18#define RUSAGE_CHILDREN (-1)
19#define RUSAGE_BOTH (-2) /* sys_wait4() uses this */
Sripathi Kodi679c9cd2008-04-29 00:58:42 -070020#define RUSAGE_THREAD 1 /* only the calling thread */
Linus Torvalds1da177e2005-04-16 15:20:36 -070021
22struct rusage {
23 struct timeval ru_utime; /* user time used */
24 struct timeval ru_stime; /* system time used */
25 long ru_maxrss; /* maximum resident set size */
26 long ru_ixrss; /* integral shared memory size */
27 long ru_idrss; /* integral unshared data size */
28 long ru_isrss; /* integral unshared stack size */
29 long ru_minflt; /* page reclaims */
30 long ru_majflt; /* page faults */
31 long ru_nswap; /* swaps */
32 long ru_inblock; /* block input operations */
33 long ru_oublock; /* block output operations */
34 long ru_msgsnd; /* messages sent */
35 long ru_msgrcv; /* messages received */
36 long ru_nsignals; /* signals received */
37 long ru_nvcsw; /* voluntary context switches */
38 long ru_nivcsw; /* involuntary " */
39};
40
41struct rlimit {
42 unsigned long rlim_cur;
43 unsigned long rlim_max;
44};
45
Jiri Slaby6a1d5e22010-03-24 17:06:58 +010046#define RLIM64_INFINITY (~0ULL)
47
48struct rlimit64 {
49 __u64 rlim_cur;
50 __u64 rlim_max;
51};
52
Linus Torvalds1da177e2005-04-16 15:20:36 -070053#define PRIO_MIN (-20)
54#define PRIO_MAX 20
55
56#define PRIO_PROCESS 0
57#define PRIO_PGRP 1
58#define PRIO_USER 2
59
60/*
61 * Limit the stack by to some sane default: root can always
62 * increase this limit if needed.. 8MB seems reasonable.
63 */
64#define _STK_LIM (8*1024*1024)
65
66/*
Kurt Garloff08334222008-10-29 14:00:48 -070067 * GPG2 wants 64kB of mlocked memory, to make sure pass phrases
Linus Torvalds1da177e2005-04-16 15:20:36 -070068 * and other sensitive information are never written to disk.
69 */
Kurt Garloff08334222008-10-29 14:00:48 -070070#define MLOCK_LIMIT ((PAGE_SIZE > 64*1024) ? PAGE_SIZE : 64*1024)
Linus Torvalds1da177e2005-04-16 15:20:36 -070071
72/*
73 * Due to binary compatibility, the actual resource numbers
74 * may be different for different linux versions..
75 */
76#include <asm/resource.h>
77
Jiri Slaby96d07d22009-11-20 14:16:33 +010078#ifdef __KERNEL__
79
80struct task_struct;
81
Adrian Bunk83cc5ed2006-06-25 05:47:41 -070082int getrusage(struct task_struct *p, int who, struct rusage __user *ru);
Jiri Slaby5b415352010-03-24 16:11:29 +010083int do_prlimit(struct task_struct *tsk, unsigned int resource,
84 struct rlimit *new_rlim, struct rlimit *old_rlim);
Adrian Bunk83cc5ed2006-06-25 05:47:41 -070085
Jiri Slaby96d07d22009-11-20 14:16:33 +010086#endif /* __KERNEL__ */
87
Linus Torvalds1da177e2005-04-16 15:20:36 -070088#endif