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-rw-r--r--kernel/time/ntp.c13
1 files changed, 5 insertions, 8 deletions
diff --git a/kernel/time/ntp.c b/kernel/time/ntp.c
index 7d281d9fbe30..f1abad738579 100644
--- a/kernel/time/ntp.c
+++ b/kernel/time/ntp.c
@@ -83,10 +83,8 @@ static long ntp_tick_adj;
83 */ 83 */
84static void ntp_update_frequency(void) 84static void ntp_update_frequency(void)
85{ 85{
86 u64 prev_base;
87 u64 second_length; 86 u64 second_length;
88 87 u64 new_base;
89 prev_base = tick_length_base;
90 88
91 second_length = (u64)(tick_usec * NSEC_PER_USEC * USER_HZ) 89 second_length = (u64)(tick_usec * NSEC_PER_USEC * USER_HZ)
92 << NTP_SCALE_SHIFT; 90 << NTP_SCALE_SHIFT;
@@ -94,16 +92,15 @@ static void ntp_update_frequency(void)
94 second_length += (s64)ntp_tick_adj << NTP_SCALE_SHIFT; 92 second_length += (s64)ntp_tick_adj << NTP_SCALE_SHIFT;
95 second_length += time_freq; 93 second_length += time_freq;
96 94
97 tick_length_base = second_length;
98
99 tick_nsec = div_u64(second_length, HZ) >> NTP_SCALE_SHIFT; 95 tick_nsec = div_u64(second_length, HZ) >> NTP_SCALE_SHIFT;
100 tick_length_base = div_u64(tick_length_base, NTP_INTERVAL_FREQ); 96 new_base = div_u64(second_length, NTP_INTERVAL_FREQ);
101 97
102 /* 98 /*
103 * Don't wait for the next second_overflow, apply 99 * Don't wait for the next second_overflow, apply
104 * the change to the tick length immediately 100 * the change to the tick length immediately:
105 */ 101 */
106 tick_length += tick_length_base - prev_base; 102 tick_length += new_base - tick_length_base;
103 tick_length_base = new_base;
107} 104}
108 105
109static void ntp_update_offset(long offset) 106static void ntp_update_offset(long offset)