include/linux/resource.h
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     1 #ifndef _LINUX_RESOURCE_H
       
     2 #define _LINUX_RESOURCE_H
       
     3 
       
     4 #include <linux/time.h>
       
     5 
       
     6 struct task_struct;
       
     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 	long	ru_maxrss;		/* maximum resident set size */
       
    28 	long	ru_ixrss;		/* integral shared memory size */
       
    29 	long	ru_idrss;		/* integral unshared data size */
       
    30 	long	ru_isrss;		/* integral unshared stack size */
       
    31 	long	ru_minflt;		/* page reclaims */
       
    32 	long	ru_majflt;		/* page faults */
       
    33 	long	ru_nswap;		/* swaps */
       
    34 	long	ru_inblock;		/* block input operations */
       
    35 	long	ru_oublock;		/* block output operations */
       
    36 	long	ru_msgsnd;		/* messages sent */
       
    37 	long	ru_msgrcv;		/* messages received */
       
    38 	long	ru_nsignals;		/* signals received */
       
    39 	long	ru_nvcsw;		/* voluntary context switches */
       
    40 	long	ru_nivcsw;		/* involuntary " */
       
    41 };
       
    42 
       
    43 struct rlimit {
       
    44 	unsigned long	rlim_cur;
       
    45 	unsigned long	rlim_max;
       
    46 };
       
    47 
       
    48 #define	PRIO_MIN	(-20)
       
    49 #define	PRIO_MAX	20
       
    50 
       
    51 #define	PRIO_PROCESS	0
       
    52 #define	PRIO_PGRP	1
       
    53 #define	PRIO_USER	2
       
    54 
       
    55 /*
       
    56  * Limit the stack by to some sane default: root can always
       
    57  * increase this limit if needed..  8MB seems reasonable.
       
    58  */
       
    59 #define _STK_LIM	(8*1024*1024)
       
    60 
       
    61 /*
       
    62  * GPG2 wants 64kB of mlocked memory, to make sure pass phrases
       
    63  * and other sensitive information are never written to disk.
       
    64  */
       
    65 #define MLOCK_LIMIT	((PAGE_SIZE > 64*1024) ? PAGE_SIZE : 64*1024)
       
    66 
       
    67 /*
       
    68  * Due to binary compatibility, the actual resource numbers
       
    69  * may be different for different linux versions..
       
    70  */
       
    71 #include <asm/resource.h>
       
    72 
       
    73 int getrusage(struct task_struct *p, int who, struct rusage __user *ru);
       
    74 
       
    75 #endif