This makes time_adj local to second_overflow() and integrates it into the tick length instead of adding it everytime. Signed-off-by: Roman Zippel --- kernel/time/ntp.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) Index: linux-2.6-mm/kernel/time/ntp.c =================================================================== --- linux-2.6-mm.orig/kernel/time/ntp.c +++ linux-2.6-mm/kernel/time/ntp.c @@ -45,7 +45,6 @@ long time_maxerror = NTP_PHASE_LIMIT; /* long time_esterror = NTP_PHASE_LIMIT; /* estimated error (us) */ long time_freq = (((NSEC_PER_SEC + HZ/2) % HZ - HZ/2) << SHIFT_USEC) / NSEC_PER_USEC; /* frequency offset (scaled ppm)*/ -static long time_adj; /* tick adjust (scaled 1 / HZ) */ long time_reftime; /* time at last adjustment (s) */ long time_adjust; long time_next_adjust; @@ -90,7 +89,7 @@ void ntp_update_frequency(void) */ void second_overflow(void) { - long ltemp; + long ltemp, time_adj; /* Bump the maxerror field */ time_maxerror += time_tolerance >> SHIFT_USEC; @@ -195,6 +194,7 @@ void second_overflow(void) time_adj += shift_right(time_adj, 6) + shift_right(time_adj, 7); #endif tick_length = tick_length_base; + tick_length += (s64)time_adj << (TICK_LENGTH_SHIFT - (SHIFT_SCALE - 10)); } /* @@ -251,11 +251,9 @@ u64 current_tick_length(void) u64 ret; /* calculate the finest interval NTP will allow. - * ie: nanosecond value shifted by (SHIFT_SCALE - 10) */ ret = tick_length; ret += (u64)(adjtime_adjustment() * 1000) << TICK_LENGTH_SHIFT; - ret += (s64)time_adj << (TICK_LENGTH_SHIFT - (SHIFT_SCALE - 10)); return ret; } -- - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/