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resource.h
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/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ #ifndef _LINUX_RESOURCE_H #define _LINUX_RESOURCE_H #include <linux/time_types.h> #include <linux/types.h> /* * Resource control/accounting header file for linux */ /* * Definition of struct rusage taken from BSD 4.3 Reno * * We don't support all of these yet, but we might as well have them.... * Otherwise, each time we add new items, programs which depend on this * structure will lose. This reduces the chances of that happening. */ #define RUSAGE_SELF 0 #define RUSAGE_CHILDREN (-1) #define RUSAGE_BOTH (-2) /* sys_wait4() uses this */ #define RUSAGE_THREAD 1 /* only the calling thread */ struct rusage { struct __kernel_old_timeval ru_utime; /* user time used */ struct __kernel_old_timeval ru_stime; /* system time used */ __kernel_long_t ru_maxrss; /* maximum resident set size */ __kernel_long_t ru_ixrss; /* integral shared memory size */ __kernel_long_t ru_idrss; /* integral unshared data size */ __kernel_long_t ru_isrss; /* integral unshared stack size */ __kernel_long_t ru_minflt; /* page reclaims */ __kernel_long_t ru_majflt; /* page faults */ __kernel_long_t ru_nswap; /* swaps */ __kernel_long_t ru_inblock; /* block input operations */ __kernel_long_t ru_oublock; /* block output operations */ __kernel_long_t ru_msgsnd; /* messages sent */ __kernel_long_t ru_msgrcv; /* messages received */ __kernel_long_t ru_nsignals; /* signals received */ __kernel_long_t ru_nvcsw; /* voluntary context switches */ __kernel_long_t ru_nivcsw; /* involuntary " */ }; struct rlimit { __kernel_ulong_t rlim_cur; __kernel_ulong_t rlim_max; }; #define RLIM64_INFINITY (~0ULL) struct rlimit64 { __u64 rlim_cur; __u64 rlim_max; }; #define PRIO_MIN (-20) #define PRIO_MAX 20 #define PRIO_PROCESS 0 #define PRIO_PGRP 1 #define PRIO_USER 2 /* * Limit the stack by to some sane default: root can always * increase this limit if needed.. 8MB seems reasonable. */ #define _STK_LIM (8*1024*1024) /* * Limit the amount of locked memory by some sane default: * root can always increase this limit if needed. * * The main use-cases are (1) preventing sensitive memory * from being swapped; (2) real-time operations; (3) via * IOURING_REGISTER_BUFFERS. * * The first two don't need much. The latter will take as * much as it can get. 8MB is a reasonably sane default. */ #define MLOCK_LIMIT (8*1024*1024) /* * Due to binary compatibility, the actual resource numbers * may be different for different linux versions.. */ #include <asm/resource.h> #endif /* _LINUX_RESOURCE_H */