From: John Stultz <john.stu...@linaro.org>
-------------------
This is a commit scheduled for the next v2.6.34 longterm release.
http://git.kernel.org/?p=linux/kernel/git/paulg/longterm-queue-2.6.34.git
If you see a problem with using this for longterm, please comment.
-------------------
commit fad0c66c4bb836d57a5f125ecd38bed653ca863a upstream.
which resolves a bug the previous commit.
Commit 6b43ae8a61 (ntp: Fix leap-second hrtimer livelock) broke the
leapsecond update of CLOCK_MONOTONIC. The missing leapsecond update to
wall_to_monotonic causes discontinuities in CLOCK_MONOTONIC.
Adjust wall_to_monotonic when NTP inserted a leapsecond.
Reported-by: Richard Cochran <richardcoch...@gmail.com>
Signed-off-by: John Stultz <john.stu...@linaro.org>
Tested-by: Richard Cochran <richardcoch...@gmail.com>
Cc: sta...@kernel.org
Link:
http://lkml.kernel.org/r/1338400497-12420-1-git-send-email-john.stu...@linaro.org
Signed-off-by: Thomas Gleixner <t...@linutronix.de>
Cc: Prarit Bhargava <pra...@redhat.com>
Cc: Thomas Gleixner <t...@linutronix.de>
Cc: Linux Kernel <linux-kernel@vger.kernel.org>
Signed-off-by: John Stultz <johns...@us.ibm.com>
Signed-off-by: Paul Gortmaker <paul.gortma...@windriver.com>
---
kernel/time/timekeeping.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c
index df1e939..f8d4877 100644
--- a/kernel/time/timekeeping.c
+++ b/kernel/time/timekeeping.c
@@ -759,6 +759,7 @@ static cycle_t logarithmic_accumulation(cycle_t offset, int
shift)
xtime.tv_sec++;
leap = second_overflow(xtime.tv_sec);
xtime.tv_sec += leap;
+ wall_to_monotonic.tv_sec -= leap;
}
/* Accumulate into raw time */
--
1.7.12.rc2
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
