]> git.karo-electronics.de Git - karo-tx-linux.git/commit
time: Move xtime_nsec adjustment underflow handling timekeeping_adjust
authorJohn Stultz <john.stultz@linaro.org>
Fri, 13 Jul 2012 05:21:56 +0000 (01:21 -0400)
committerThomas Gleixner <tglx@linutronix.de>
Sun, 15 Jul 2012 08:39:07 +0000 (10:39 +0200)
commit2a8c0883c3cfffcc148ea606e2a4e7453cd75e73
tree9a340aaef6785881ec0eab74c32ad35841441889
parentf2a5a0854efc62abe7f69e9947842cb135837f9a
time: Move xtime_nsec adjustment underflow handling timekeeping_adjust

When we make adjustments speeding up the clock, its possible
for xtime_nsec to underflow. We already handle this properly,
but we do so from update_wall_time() instead of the more logical
timekeeping_adjust(), where the possible underflow actually
occurs.

Thus, move the correction logic to the timekeeping_adjust, which
is the function that causes the issue. Making update_wall_time()
more readable.

Signed-off-by: John Stultz <johnstul@us.ibm.com>
Reviewed-by: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Richard Cochran <richardcochran@gmail.com>
Cc: Prarit Bhargava <prarit@redhat.com>
Link: http://lkml.kernel.org/r/1342156917-25092-8-git-send-email-john.stultz@linaro.org
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
kernel/time/timekeeping.c