1 #ifndef _LINUX_RESOURCE_H 2 #define _LINUX_RESOURCE_H 3 4 #include <linux/time.h> 5 #include <linux/types.h> 6 7 /* 8 * Resource control/accounting header file for linux 9 */ 10 11 /* 12 * Definition of struct rusage taken from BSD 4.3 Reno 13 * 14 * We don't support all of these yet, but we might as well have them.... 15 * Otherwise, each time we add new items, programs which depend on this 16 * structure will lose. This reduces the chances of that happening. 17 */ 18 #define RUSAGE_SELF 0 19 #define RUSAGE_CHILDREN (-1) 20 #define RUSAGE_BOTH (-2) /* sys_wait4() uses this */ 21 #define RUSAGE_THREAD 1 /* only the calling thread */ 22 23 struct rusage { 24 struct timeval ru_utime; /* user time used */ 25 struct timeval ru_stime; /* system time used */ 26 long ru_maxrss; /* maximum resident set size */ 27 long ru_ixrss; /* integral shared memory size */ 28 long ru_idrss; /* integral unshared data size */ 29 long ru_isrss; /* integral unshared stack size */ 30 long ru_minflt; /* page reclaims */ 31 long ru_majflt; /* page faults */ 32 long ru_nswap; /* swaps */ 33 long ru_inblock; /* block input operations */ 34 long ru_oublock; /* block output operations */ 35 long ru_msgsnd; /* messages sent */ 36 long ru_msgrcv; /* messages received */ 37 long ru_nsignals; /* signals received */ 38 long ru_nvcsw; /* voluntary context switches */ 39 long ru_nivcsw; /* involuntary " */ 40 }; 41 42 struct rlimit { 43 unsigned long rlim_cur; 44 unsigned long rlim_max; 45 }; 46 47 #define RLIM64_INFINITY (~0ULL) 48 49 struct rlimit64 { 50 __u64 rlim_cur; 51 __u64 rlim_max; 52 }; 53 54 #define PRIO_MIN (-20) 55 #define PRIO_MAX 20 56 57 #define PRIO_PROCESS 0 58 #define PRIO_PGRP 1 59 #define PRIO_USER 2 60 61 /* 62 * Limit the stack by to some sane default: root can always 63 * increase this limit if needed.. 8MB seems reasonable. 64 */ 65 #define _STK_LIM (8*1024*1024) 66 67 /* 68 * GPG2 wants 64kB of mlocked memory, to make sure pass phrases 69 * and other sensitive information are never written to disk. 70 */ 71 #define MLOCK_LIMIT ((PAGE_SIZE > 64*1024) ? PAGE_SIZE : 64*1024) 72 73 /* 74 * Due to binary compatibility, the actual resource numbers 75 * may be different for different linux versions.. 76 */ 77 #include <asm/resource.h> 78 79 #ifdef __KERNEL__ 80 81 struct task_struct; 82 83 int getrusage(struct task_struct *p, int who, struct rusage __user *ru); 84 int do_prlimit(struct task_struct *tsk, unsigned int resource, 85 struct rlimit *new_rlim, struct rlimit *old_rlim); 86 87 #endif /* __KERNEL__ */ 88 89 #endif 90