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1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */2#ifndef _UAPI_LINUX_RESOURCE_H3#define _UAPI_LINUX_RESOURCE_H4 5#include <linux/time_types.h>6#include <linux/types.h>7 8/*9 * Resource control/accounting header file for linux10 */11 12/*13 * Definition of struct rusage taken from BSD 4.3 Reno14 * 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 this17 * structure will lose. This reduces the chances of that happening.18 */19#define RUSAGE_SELF 020#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 __kernel_old_timeval ru_utime; /* user time used */26 struct __kernel_old_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 2057 58#define PRIO_PROCESS 059#define PRIO_PGRP 160#define PRIO_USER 261 62/*63 * Limit the stack by to some sane default: root can always64 * increase this limit if needed.. 8MB seems reasonable.65 */66#define _STK_LIM (8*1024*1024)67 68/*69 * Limit the amount of locked memory by some sane default:70 * root can always increase this limit if needed.71 *72 * The main use-cases are (1) preventing sensitive memory73 * from being swapped; (2) real-time operations; (3) via74 * IOURING_REGISTER_BUFFERS.75 *76 * The first two don't need much. The latter will take as77 * much as it can get. 8MB is a reasonably sane default.78 */79#define MLOCK_LIMIT (8*1024*1024)80 81/*82 * Due to binary compatibility, the actual resource numbers83 * may be different for different linux versions..84 */85#include <asm/resource.h>86 87 88#endif /* _UAPI_LINUX_RESOURCE_H */89