LXR linux/include/uapi/linux/resource.h

   1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
   2#ifndef _UAPI_LINUX_RESOURCE_H
   3#define _UAPI_LINUX_RESOURCE_H
   4
   5#include <linux/time.h>
   6#include <linux/types.h>
   7
   8/*
   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#define RUSAGE_THREAD   1               /* only the calling thread */
  23
  24struct  rusage {
  25        struct timeval ru_utime;        /* user time used */
  26        struct timeval ru_stime;        /* system time used */
  27        __kernel_long_t ru_maxrss;      /* maximum resident set size */
  28        __kernel_long_t ru_ixrss;       /* integral shared memory size */
  29        __kernel_long_t ru_idrss;       /* integral unshared data size */
  30        __kernel_long_t ru_isrss;       /* integral unshared stack size */
  31        __kernel_long_t ru_minflt;      /* page reclaims */
  32        __kernel_long_t ru_majflt;      /* page faults */
  33        __kernel_long_t ru_nswap;       /* swaps */
  34        __kernel_long_t ru_inblock;     /* block input operations */
  35        __kernel_long_t ru_oublock;     /* block output operations */
  36        __kernel_long_t ru_msgsnd;      /* messages sent */
  37        __kernel_long_t ru_msgrcv;      /* messages received */
  38        __kernel_long_t ru_nsignals;    /* signals received */
  39        __kernel_long_t ru_nvcsw;       /* voluntary context switches */
  40        __kernel_long_t ru_nivcsw;      /* involuntary " */
  41};
  42
  43struct rlimit {
  44        __kernel_ulong_t        rlim_cur;
  45        __kernel_ulong_t        rlim_max;
  46};
  47
  48#define RLIM64_INFINITY         (~0ULL)
  49
  50struct rlimit64 {
  51        __u64 rlim_cur;
  52        __u64 rlim_max;
  53};
  54
  55#define PRIO_MIN        (-20)
  56#define PRIO_MAX        20
  57
  58#define PRIO_PROCESS    0
  59#define PRIO_PGRP       1
  60#define PRIO_USER       2
  61
  62/*
  63 * Limit the stack by to some sane default: root can always
  64 * increase this limit if needed..  8MB seems reasonable.
  65 */
  66#define _STK_LIM        (8*1024*1024)
  67
  68/*
  69 * GPG2 wants 64kB of mlocked memory, to make sure pass phrases
  70 * and other sensitive information are never written to disk.
  71 */
  72#define MLOCK_LIMIT     ((PAGE_SIZE > 64*1024) ? PAGE_SIZE : 64*1024)
  73
  74/*
  75 * Due to binary compatibility, the actual resource numbers
  76 * may be different for different linux versions..
  77 */
  78#include <asm/resource.h>
  79
  80
  81#endif /* _UAPI_LINUX_RESOURCE_H */
  82