diff options
| -rw-r--r-- | kernel/time/ntp.c | 18 | ||||
| -rw-r--r-- | kernel/time/ntp_internal.h | 2 | ||||
| -rw-r--r-- | kernel/time/timekeeping.c | 13 |
3 files changed, 17 insertions, 16 deletions
diff --git a/kernel/time/ntp.c b/kernel/time/ntp.c index 2dc60c6..d17e13c 100644 --- a/kernel/time/ntp.c +++ b/kernel/time/ntp.c @@ -662,10 +662,8 @@ int ntp_validate_timex(struct timex *txc) * adjtimex mainly allows reading (and writing, if superuser) of * kernel time-keeping variables. used by xntpd. */ -int __do_adjtimex(struct timex *txc) +int __do_adjtimex(struct timex *txc, struct timespec *ts, s32 *time_tai) { - struct timespec ts; - u32 time_tai, orig_tai; int result; if (txc->modes & ADJ_SETOFFSET) { @@ -679,9 +677,6 @@ int __do_adjtimex(struct timex *txc) return result; } - getnstimeofday(&ts); - orig_tai = time_tai = timekeeping_get_tai_offset(); - raw_spin_lock_irq(&ntp_lock); if (txc->modes & ADJ_ADJTIME) { @@ -697,7 +692,7 @@ int __do_adjtimex(struct timex *txc) /* If there are input parameters, then process them: */ if (txc->modes) - process_adjtimex_modes(txc, &ts, &time_tai); + process_adjtimex_modes(txc, ts, time_tai); txc->offset = shift_right(time_offset * NTP_INTERVAL_FREQ, NTP_SCALE_SHIFT); @@ -719,18 +714,15 @@ int __do_adjtimex(struct timex *txc) txc->precision = 1; txc->tolerance = MAXFREQ_SCALED / PPM_SCALE; txc->tick = tick_usec; - txc->tai = time_tai; + txc->tai = *time_tai; /* fill PPS status fields */ pps_fill_timex(txc); raw_spin_unlock_irq(&ntp_lock); - if (time_tai != orig_tai) - timekeeping_set_tai_offset(time_tai); - - txc->time.tv_sec = ts.tv_sec; - txc->time.tv_usec = ts.tv_nsec; + txc->time.tv_sec = ts->tv_sec; + txc->time.tv_usec = ts->tv_nsec; if (!(time_status & STA_NANO)) txc->time.tv_usec /= NSEC_PER_USEC; diff --git a/kernel/time/ntp_internal.h b/kernel/time/ntp_internal.h index a2a3976..1950cb4 100644 --- a/kernel/time/ntp_internal.h +++ b/kernel/time/ntp_internal.h @@ -7,6 +7,6 @@ extern void ntp_clear(void); extern u64 ntp_tick_length(void); extern int second_overflow(unsigned long secs); extern int ntp_validate_timex(struct timex *); -extern int __do_adjtimex(struct timex *); +extern int __do_adjtimex(struct timex *, struct timespec *, s32 *); extern void __hardpps(const struct timespec *, const struct timespec *); #endif /* _LINUX_NTP_INTERNAL_H */ diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c index f6c8a72..5f7a233 100644 --- a/kernel/time/timekeeping.c +++ b/kernel/time/timekeeping.c @@ -1618,6 +1618,8 @@ EXPORT_SYMBOL_GPL(ktime_get_monotonic_offset); */ int do_adjtimex(struct timex *txc) { + struct timespec ts; + s32 tai, orig_tai; int ret; /* Validate the data before disabling interrupts */ @@ -1625,9 +1627,16 @@ int do_adjtimex(struct timex *txc) if (ret) return ret; - return __do_adjtimex(txc); -} + getnstimeofday(&ts); + orig_tai = tai = timekeeping_get_tai_offset(); + + ret = __do_adjtimex(txc, &ts, &tai); + if (tai != orig_tai) + timekeeping_set_tai_offset(tai); + + return ret; +} #ifdef CONFIG_NTP_PPS /** |