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
  24 struct  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
  43 struct rlimit {
  44         __kernel_ulong_t        rlim_cur;
  45         __kernel_ulong_t        rlim_max;
  46 };
  47
  48 #define RLIM64_INFINITY         (~0ULL)
  49
  50 struct 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 */