LXR linux/include/linux/time32.h

   1#ifndef _LINUX_TIME32_H
   2#define _LINUX_TIME32_H
   3/*
   4 * These are all interfaces based on the old time_t definition
   5 * that overflows in 2038 on 32-bit architectures. New code
   6 * should use the replacements based on time64_t and timespec64.
   7 *
   8 * Any interfaces in here that become unused as we migrate
   9 * code to time64_t should get removed.
  10 */
  11
  12#include <linux/time64.h>
  13#include <linux/timex.h>
  14
  15#include <vdso/time32.h>
  16
  17struct old_itimerspec32 {
  18        struct old_timespec32 it_interval;
  19        struct old_timespec32 it_value;
  20};
  21
  22struct old_utimbuf32 {
  23        old_time32_t    actime;
  24        old_time32_t    modtime;
  25};
  26
  27struct old_timex32 {
  28        u32 modes;
  29        s32 offset;
  30        s32 freq;
  31        s32 maxerror;
  32        s32 esterror;
  33        s32 status;
  34        s32 constant;
  35        s32 precision;
  36        s32 tolerance;
  37        struct old_timeval32 time;
  38        s32 tick;
  39        s32 ppsfreq;
  40        s32 jitter;
  41        s32 shift;
  42        s32 stabil;
  43        s32 jitcnt;
  44        s32 calcnt;
  45        s32 errcnt;
  46        s32 stbcnt;
  47        s32 tai;
  48
  49        s32:32; s32:32; s32:32; s32:32;
  50        s32:32; s32:32; s32:32; s32:32;
  51        s32:32; s32:32; s32:32;
  52};
  53
  54extern int get_old_timespec32(struct timespec64 *, const void __user *);
  55extern int put_old_timespec32(const struct timespec64 *, void __user *);
  56extern int get_old_itimerspec32(struct itimerspec64 *its,
  57                        const struct old_itimerspec32 __user *uits);
  58extern int put_old_itimerspec32(const struct itimerspec64 *its,
  59                        struct old_itimerspec32 __user *uits);
  60struct __kernel_timex;
  61int get_old_timex32(struct __kernel_timex *, const struct old_timex32 __user *);
  62int put_old_timex32(struct old_timex32 __user *, const struct __kernel_timex *);
  63
  64/**
  65 * ns_to_kernel_old_timeval - Convert nanoseconds to timeval
  66 * @nsec:       the nanoseconds value to be converted
  67 *
  68 * Returns the timeval representation of the nsec parameter.
  69 */
  70extern struct __kernel_old_timeval ns_to_kernel_old_timeval(s64 nsec);
  71
  72#endif
  73