Kyle Walker 36374583f9 clocksource: Defer override invalidation unless clock is unstable ...

Clocksources don't get the VALID_FOR_HRES flag until they have been
checked by a watchdog. However, when using an override, the
clocksource_select logic will clear the override value if the
clocksource is not marked VALID_FOR_HRES during that inititial check.
When using the boot arguments clocksource=<foo>, this selection can
run before the watchdog, and can cause the override to be incorrectly
cleared.

To address this condition, the override_name is only invalidated for
unstable clocksources. Otherwise, the override is left intact until after
the watchdog has validated the clocksource as stable/unstable.

Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Richard Cochran <richardcochran@gmail.com>
Cc: Prarit Bhargava <prarit@redhat.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Kyle Walker <kwalker@redhat.com>
Signed-off-by: John Stultz <john.stultz@linaro.org>

2016-08-31 14:43:33 -07:00

..

alarmtimer.c

alarmtimer: Fix comments describing structure fields

2016-06-20 12:47:09 -07:00

clockevents.c

clockevents: Make clockevents_subsys static

2016-07-19 10:48:06 +02:00

clocksource.c

clocksource: Defer override invalidation unless clock is unstable

2016-08-31 14:43:33 -07:00

hrtimer.c

hrtimer: Spelling fixes

2016-08-31 14:43:20 -07:00

itimer.c

itimers: Handle relative timers with CONFIG_TIME_LOW_RES proper

2016-01-17 11:13:55 +01:00

jiffies.c

jiffies: Use CLOCKSOURCE_MASK instead of constant

2016-02-27 08:55:31 +01:00

Kconfig

rcu: Drop RCU_USER_QS in favor of NO_HZ_FULL

2015-07-06 13:52:18 -07:00

Makefile

time: Remove development rules from Kbuild/Makefile

2015-07-01 09:57:35 +02:00

ntp_internal.h

ntp: Fix second_overflow's input parameter type to be 64bits

2015-12-16 16:50:56 -08:00

ntp.c

ntp: Fix ADJ_SETOFFSET being used w/ ADJ_NANO

2016-01-22 12:01:42 +01:00

posix-clock.c

posix-clock: Fix return code on the poll method's error path

2015-12-29 11:33:06 +01:00

posix-cpu-timers.c

posix_cpu_timer: Exit early when process has been reaped

2016-07-11 17:20:12 +02:00

posix-timers.c

posix-timers: Handle relative timers with CONFIG_TIME_LOW_RES proper

2016-01-17 11:13:55 +01:00

sched_clock.c

timers, sched/clock: Clean up the code a bit

2015-03-27 08:34:01 +01:00

test_udelay.c

time: Avoid timespec in udelay_test

2016-06-20 12:47:26 -07:00

tick-broadcast-hrtimer.c

tick/broadcast-hrtimer: Set name of the ce_broadcast_hrtimer

2016-07-05 17:02:19 +02:00

tick-broadcast.c

tick: Move the export of tick_broadcast_oneshot_control to the proper place

2015-07-14 12:01:04 +02:00

tick-common.c

clockevents: Remove unused set_mode() callback

2015-09-14 11:00:55 +02:00

tick-internal.h

timers: Forward the wheel clock whenever possible

2016-07-07 10:35:11 +02:00

tick-oneshot.c

clockevents: Provide functions to set and get the state

2015-06-02 14:40:47 +02:00

tick-sched.c

tick/nohz: Optimize nohz idle enter

2016-07-19 13:48:24 +02:00

tick-sched.h

timers/nohz: Convert tick dependency mask to atomic_t

2016-03-29 11:52:11 +02:00

time.c

time: remove timespec_add_safe()

2016-05-19 19:12:14 -07:00

timeconst.bc

timeconst: Update path in comment

2015-10-26 10:06:06 +09:00

timeconv.c

time: Add time64_to_tm()

2016-06-20 12:47:15 -07:00

timecounter.c

timecounter: keep track of accumulated fractional nanoseconds

2014-12-30 18:29:27 -05:00

timekeeping_debug.c

timekeeping: Cap array access in timekeeping_debug

2016-08-24 09:34:32 +02:00

timekeeping_internal.h

clocksource: Make clocksource validation work for all clocksources

2015-12-19 15:59:57 +01:00

timekeeping.c

timekeeping: Avoid taking lock in NMI path with CONFIG_DEBUG_TIMEKEEPING

2016-08-24 09:34:31 +02:00

timekeeping.h

hrtimer: Make offset update smarter

2015-04-22 17:06:49 +02:00

timer_list.c

hrtimer: Handle remaining time proper for TIME_LOW_RES

2016-01-17 11:13:55 +01:00

timer_stats.c

timer: Avoid using timespec

2016-06-20 12:47:33 -07:00

timer.c

timers: Fix get_next_timer_interrupt() computation

2016-08-09 09:31:55 +02:00