diff options
Diffstat (limited to 'kernel/time.c')
-rw-r--r-- | kernel/time.c | 79 |
1 files changed, 2 insertions, 77 deletions
diff --git a/kernel/time.c b/kernel/time.c index f04791f6940..5b81da08bbd 100644 --- a/kernel/time.c +++ b/kernel/time.c @@ -58,9 +58,9 @@ EXPORT_SYMBOL(sys_tz); asmlinkage long sys_time(time_t __user * tloc) { time_t i; - struct timeval tv; + struct timespec tv; - do_gettimeofday(&tv); + getnstimeofday(&tv); i = tv.tv_sec; if (tloc) { @@ -133,7 +133,6 @@ static inline void warp_clock(void) write_seqlock_irq(&xtime_lock); wall_to_monotonic.tv_sec -= sys_tz.tz_minuteswest * 60; xtime.tv_sec += sys_tz.tz_minuteswest * 60; - time_interpolator_reset(); write_sequnlock_irq(&xtime_lock); clock_was_set(); } @@ -306,79 +305,6 @@ struct timespec timespec_trunc(struct timespec t, unsigned gran) } EXPORT_SYMBOL(timespec_trunc); -#ifdef CONFIG_TIME_INTERPOLATION -void getnstimeofday (struct timespec *tv) -{ - unsigned long seq,sec,nsec; - - do { - seq = read_seqbegin(&xtime_lock); - sec = xtime.tv_sec; - nsec = xtime.tv_nsec+time_interpolator_get_offset(); - } while (unlikely(read_seqretry(&xtime_lock, seq))); - - while (unlikely(nsec >= NSEC_PER_SEC)) { - nsec -= NSEC_PER_SEC; - ++sec; - } - tv->tv_sec = sec; - tv->tv_nsec = nsec; -} -EXPORT_SYMBOL_GPL(getnstimeofday); - -int do_settimeofday (struct timespec *tv) -{ - time_t wtm_sec, sec = tv->tv_sec; - long wtm_nsec, nsec = tv->tv_nsec; - - if ((unsigned long)tv->tv_nsec >= NSEC_PER_SEC) - return -EINVAL; - - write_seqlock_irq(&xtime_lock); - { - wtm_sec = wall_to_monotonic.tv_sec + (xtime.tv_sec - sec); - wtm_nsec = wall_to_monotonic.tv_nsec + (xtime.tv_nsec - nsec); - - set_normalized_timespec(&xtime, sec, nsec); - set_normalized_timespec(&wall_to_monotonic, wtm_sec, wtm_nsec); - - time_adjust = 0; /* stop active adjtime() */ - time_status |= STA_UNSYNC; - time_maxerror = NTP_PHASE_LIMIT; - time_esterror = NTP_PHASE_LIMIT; - time_interpolator_reset(); - } - write_sequnlock_irq(&xtime_lock); - clock_was_set(); - return 0; -} -EXPORT_SYMBOL(do_settimeofday); - -void do_gettimeofday (struct timeval *tv) -{ - unsigned long seq, nsec, usec, sec, offset; - do { - seq = read_seqbegin(&xtime_lock); - offset = time_interpolator_get_offset(); - sec = xtime.tv_sec; - nsec = xtime.tv_nsec; - } while (unlikely(read_seqretry(&xtime_lock, seq))); - - usec = (nsec + offset) / 1000; - - while (unlikely(usec >= USEC_PER_SEC)) { - usec -= USEC_PER_SEC; - ++sec; - } - - tv->tv_sec = sec; - tv->tv_usec = usec; -} - -EXPORT_SYMBOL(do_gettimeofday); - - -#else #ifndef CONFIG_GENERIC_TIME /* * Simulate gettimeofday using do_gettimeofday which only allows a timeval @@ -394,7 +320,6 @@ void getnstimeofday(struct timespec *tv) } EXPORT_SYMBOL_GPL(getnstimeofday); #endif -#endif /* Converts Gregorian date to seconds since 1970-01-01 00:00:00. * Assumes input in normal date format, i.e. 1980-12-31 23:59:59 |