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authorJohn Stultz <john.stultz@linaro.org>2013-12-11 02:13:35 +0100
committerJohn Stultz <john.stultz@linaro.org>2013-12-23 20:54:34 +0100
commit04005f6011e3b504cd4d791d9769f7cb9a3b2eae (patch)
tree9d2d3283a854a9dca0cee332069679818f674963 /kernel/trace/ring_buffer.c
parenttick/timekeeping: Call update_wall_time outside the jiffies lock (diff)
downloadlinux-04005f6011e3b504cd4d791d9769f7cb9a3b2eae.tar.xz
linux-04005f6011e3b504cd4d791d9769f7cb9a3b2eae.zip
timekeeping: Fix CLOCK_TAI timer/nanosleep delays
A think-o in the calculation of the monotonic -> tai time offset results in CLOCK_TAI timers and nanosleeps to expire late (the latency is ~2x the tai offset). Fix this by adding the tai offset from the realtime offset instead of subtracting. Cc: Sasha Levin <sasha.levin@oracle.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Prarit Bhargava <prarit@redhat.com> Cc: Richard Cochran <richardcochran@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: stable <stable@vger.kernel.org> #3.10+ Signed-off-by: John Stultz <john.stultz@linaro.org>
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