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ntp: Correct TAI offset during leap second

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commit dd48d708ff upstream.

When repeating a UTC time value during a leap second (when the UTC
time should be 23:59:60), the TAI timescale should not stop. The kernel
NTP code increments the TAI offset one second too late. This patch fixes
the issue by incrementing the offset during the leap second itself.

Signed-off-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Richard Cochran 2012-04-26 14:11:32 +02:00 committed by Greg Kroah-Hartman
parent e60a87bab7
commit c17f648b6e
1 changed files with 1 additions and 1 deletions
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2
kernel/time/ntp.c
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@ -412,6 +412,7 @@ int second_overflow(unsigned long secs)
if (secs % 86400 == 0) {
leap = -1;
time_state = TIME_OOP;
time_tai++;
printk(KERN_NOTICE
"Clock: inserting leap second 23:59:60 UTC\n");
}
@ -426,7 +427,6 @@ int second_overflow(unsigned long secs)
}
break;
case TIME_OOP:
time_tai++;
time_state = TIME_WAIT;
break;