John Stultz 3d88d56c58 time: Fix CLOCK_MONOTONIC_RAW sub-nanosecond accounting ... Due to how the MONOTONIC_RAW accumulation logic was handled, there is the potential for a 1ns discontinuity when we do accumulations. This small discontinuity has for the most part gone un-noticed, but since ARM64 enabled CLOCK_MONOTONIC_RAW in their vDSO clock_gettime implementation, we've seen failures with the inconsistency-check test in kselftest. This patch addresses the issue by using the same sub-ns accumulation handling that CLOCK_MONOTONIC uses, which avoids the issue for in-kernel users. Since the ARM64 vDSO implementation has its own clock_gettime calculation logic, this patch reduces the frequency of errors, but failures are still seen. The ARM64 vDSO will need to be updated to include the sub-nanosecond xtime_nsec values in its calculation for this issue to be completely fixed. Signed-off-by: John Stultz <john.stultz@linaro.org> Tested-by: Daniel Mentz <danielmentz@google.com> Cc: Prarit Bhargava <prarit@redhat.com> Cc: Kevin Brodsky <kevin.brodsky@arm.com> Cc: Richard Cochran <richardcochran@gmail.com> Cc: Stephen Boyd <stephen.boyd@linaro.org> Cc: Will Deacon <will.deacon@arm.com> Cc: "stable #4 . 8+" <stable@vger.kernel.org> Cc: Miroslav Lichvar <mlichvar@redhat.com> Link: http://lkml.kernel.org/r/1496965462-20003-3-git-send-email-john.stultz@linaro.org Signed-off-by: Thomas Gleixner <tglx@linutronix.de>		2017-06-20 10:41:50 +02:00
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alarmtimer.c	alarmtimer: Rate limit periodic intervals	2017-06-04 15:21:18 +02:00
clockevents.c
clocksource.c
hrtimer.c
itimer.c
jiffies.c
Kconfig
Makefile
ntp_internal.h
ntp.c
posix-clock.c
posix-cpu-timers.c	posix-timers: Make signal printks conditional	2017-05-23 23:39:57 +02:00
posix-stubs.c
posix-timers.c
sched_clock.c
test_udelay.c
tick-broadcast-hrtimer.c
tick-broadcast.c	tick/broadcast: Make tick_broadcast_setup_oneshot() static	2017-06-12 18:56:01 +02:00
tick-common.c
tick-internal.h	tick/broadcast: Make tick_broadcast_setup_oneshot() static	2017-06-12 18:56:01 +02:00
tick-oneshot.c
tick-sched.c
tick-sched.h
time.c
timeconst.bc
timeconv.c
timecounter.c
timekeeping_debug.c
timekeeping_internal.h
timekeeping.c	time: Fix CLOCK_MONOTONIC_RAW sub-nanosecond accounting	2017-06-20 10:41:50 +02:00
timekeeping.h
timer_list.c
timer.c