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authorRichard Cochran <richardcochran@gmail.com>2012-04-26 14:11:32 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-06-22 11:37:16 -0700
commitc17f648b6e8adb8379b2d2972e24953285332f44 (patch)
tree7b5bf4065b4a8cdeaf3d34bcb86fc621eb5960ea /kernel
parente60a87bab7ce339c034b7d7dd365d687bbffd091 (diff)
ntp: Correct TAI offset during leap second
commit dd48d708ff3e917f6d6b6c2b696c3f18c019feed 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>
Diffstat (limited to 'kernel')
-rw-r--r--kernel/time/ntp.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/time/ntp.c b/kernel/time/ntp.c
index f03fd83b170..e8c867173ae 100644
--- a/kernel/time/ntp.c
+++ b/kernel/time/ntp.c
@@ -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;