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bdd565f817
There are two 'struct timeval' fields in 'struct rusage'. Unfortunately the definition of timeval is now ambiguous when used in user space with a libc that has a 64-bit time_t, and this also changes the 'rusage' definition in user space in a way that is incompatible with the system call interface. While there is no good solution to avoid all ambiguity here, change the definition in the kernel headers to be compatible with the kernel ABI, using __kernel_old_timeval as an unambiguous base type. In previous discussions, there was also a plan to add a replacement for rusage based on 64-bit timestamps and nanosecond resolution, i.e. 'struct __kernel_timespec'. I have patches for that as well, if anyone thinks we should do that. Reviewed-by: Cyrill Gorcunov <gorcunov@gmail.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
81 lines
2.3 KiB
C
81 lines
2.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
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#ifndef _UAPI_LINUX_RESOURCE_H
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#define _UAPI_LINUX_RESOURCE_H
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#include <linux/time.h>
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#include <linux/types.h>
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/*
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* Resource control/accounting header file for linux
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*/
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/*
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* Definition of struct rusage taken from BSD 4.3 Reno
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*
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* We don't support all of these yet, but we might as well have them....
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* Otherwise, each time we add new items, programs which depend on this
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* structure will lose. This reduces the chances of that happening.
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*/
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#define RUSAGE_SELF 0
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#define RUSAGE_CHILDREN (-1)
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#define RUSAGE_BOTH (-2) /* sys_wait4() uses this */
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#define RUSAGE_THREAD 1 /* only the calling thread */
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struct rusage {
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struct __kernel_old_timeval ru_utime; /* user time used */
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struct __kernel_old_timeval ru_stime; /* system time used */
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__kernel_long_t ru_maxrss; /* maximum resident set size */
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__kernel_long_t ru_ixrss; /* integral shared memory size */
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__kernel_long_t ru_idrss; /* integral unshared data size */
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__kernel_long_t ru_isrss; /* integral unshared stack size */
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__kernel_long_t ru_minflt; /* page reclaims */
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__kernel_long_t ru_majflt; /* page faults */
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__kernel_long_t ru_nswap; /* swaps */
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__kernel_long_t ru_inblock; /* block input operations */
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__kernel_long_t ru_oublock; /* block output operations */
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__kernel_long_t ru_msgsnd; /* messages sent */
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__kernel_long_t ru_msgrcv; /* messages received */
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__kernel_long_t ru_nsignals; /* signals received */
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__kernel_long_t ru_nvcsw; /* voluntary context switches */
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__kernel_long_t ru_nivcsw; /* involuntary " */
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};
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struct rlimit {
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__kernel_ulong_t rlim_cur;
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__kernel_ulong_t rlim_max;
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};
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#define RLIM64_INFINITY (~0ULL)
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struct rlimit64 {
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__u64 rlim_cur;
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__u64 rlim_max;
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};
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#define PRIO_MIN (-20)
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#define PRIO_MAX 20
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#define PRIO_PROCESS 0
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#define PRIO_PGRP 1
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#define PRIO_USER 2
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/*
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* Limit the stack by to some sane default: root can always
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* increase this limit if needed.. 8MB seems reasonable.
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*/
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#define _STK_LIM (8*1024*1024)
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/*
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* GPG2 wants 64kB of mlocked memory, to make sure pass phrases
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* and other sensitive information are never written to disk.
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*/
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#define MLOCK_LIMIT ((PAGE_SIZE > 64*1024) ? PAGE_SIZE : 64*1024)
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/*
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* Due to binary compatibility, the actual resource numbers
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* may be different for different linux versions..
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*/
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#include <asm/resource.h>
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#endif /* _UAPI_LINUX_RESOURCE_H */
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