Frederic Weisbecker f268c3737e tick/nohz: Only check for RCU deferred wakeup on user/guest entry when needed ... Checking for and processing RCU-nocb deferred wakeup upon user/guest entry is only relevant when nohz_full runs on the local CPU, otherwise the periodic tick should take care of it. Make sure we don't needlessly pollute these fast-paths as a -3% performance regression on a will-it-scale.per_process_ops has been reported so far. Fixes: 47b8ff194c (entry: Explicitly flush pending rcuog wakeup before last rescheduling point) Fixes: 4ae7dc97f7 (entry/kvm: Explicitly flush pending rcuog wakeup before last rescheduling point) Reported-by: kernel test robot <oliver.sang@intel.com> Signed-off-by: Frederic Weisbecker <frederic@kernel.org> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: Paul E. McKenney <paulmck@kernel.org> Cc: stable@vger.kernel.org Link: https://lkml.kernel.org/r/20210527113441.465489-1-frederic@kernel.org		2021-05-31 10:14:49 +02:00
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Kconfig	Update/fix two CPU sanity checks in the hotplug and the boot code,	2020-12-27 09:03:41 -08:00
Makefile	timekeeping: add CONFIG_LEGACY_TIMER_TICK	2020-10-30 21:57:04 +01:00
alarmtimer.c	alarmtimer: Check RTC features instead of ops	2021-05-11 21:28:04 +02:00
clockevents.c	tick: Remove outgoing CPU from broadcast masks	2019-03-23 18:26:43 +01:00
clocksource.c	ARM:	2021-05-01 10:14:08 -07:00
hrtimer.c	The time and timers updates contain:	2021-04-26 09:54:03 -07:00
itimer.c	time: Prevent undefined behaviour in timespec64_to_ns()	2020-10-26 11:48:11 +01:00
jiffies.c	timekeeping, clocksource: Fix various typos in comments	2021-03-22 23:06:48 +01:00
namespace.c	timens: Delete no-op time_ns_init()	2021-02-05 19:32:09 +01:00
ntp.c	timekeeping, clocksource: Fix various typos in comments	2021-03-22 23:06:48 +01:00
ntp_internal.h	ntp: Make the RTC synchronization more reliable	2020-12-11 10:40:52 +01:00
posix-clock.c	posix-clocks: Rename the clock_get() callback to clock_get_timespec()	2020-01-14 12:20:49 +01:00
posix-cpu-timers.c	The time and timers updates contain:	2021-04-26 09:54:03 -07:00
posix-stubs.c	posix-timers: Make clock_nanosleep() time namespace aware	2020-01-14 12:20:55 +01:00
posix-timers.c	posix-timers: Preserve return value in clock_adjtime32()	2021-04-17 14:55:06 +02:00
posix-timers.h	posix-clocks: Introduce clock_get_ktime() callback	2020-01-14 12:20:51 +01:00
sched_clock.c	time/sched_clock: Mark sched_clock_read_begin/retry() as notrace	2020-10-26 11:34:31 +01:00
test_udelay.c	time/debug: Remove dentry pointer for debugfs	2021-03-18 11:20:26 +01:00
tick-broadcast-hrtimer.c	timekeeping, clocksource: Fix various typos in comments	2021-03-22 23:06:48 +01:00
tick-broadcast.c	tick/broadcast: Allow late registered device to enter oneshot mode	2021-04-16 21:03:50 +02:00
tick-common.c	tick: Use tick_check_replacement() instead of open coding it	2021-04-16 21:03:50 +02:00
tick-internal.h	tick: Get rid of tick_period	2020-11-19 10:48:29 +01:00
tick-legacy.c	timekeeping: remove xtime_update	2020-10-30 21:57:07 +01:00
tick-oneshot.c	timekeeping, clocksource: Fix various typos in comments	2021-03-22 23:06:48 +01:00
tick-sched.c	tick/nohz: Only check for RCU deferred wakeup on user/guest entry when needed	2021-05-31 10:14:49 +02:00
tick-sched.h	timekeeping, clocksource: Fix various typos in comments	2021-03-22 23:06:48 +01:00
time.c	timekeeping, clocksource: Fix various typos in comments	2021-03-22 23:06:48 +01:00
timeconst.bc	time: Add SPDX license identifiers	2018-11-23 11:51:20 +01:00
timeconv.c	time: Add missing colons for parameter documentation of time64_to_tm()	2020-11-15 23:47:23 +01:00
timecounter.c	time/timecounter: Mark 1st argument of timecounter_cyc2time() as const	2021-04-16 21:03:50 +02:00
timekeeping.c	ARM:	2021-05-01 10:14:08 -07:00
timekeeping.h	asm-generic: cross-architecture timer cleanup	2020-12-16 00:07:17 -08:00
timekeeping_debug.c	timekeeping/debug: No need to check return value of debugfs_create functions	2019-01-29 20:08:41 +01:00
timekeeping_internal.h	timekeeping/vsyscall: Provide vdso_update_begin/end()	2020-08-06 10:57:30 +02:00
timer.c	timekeeping, clocksource: Fix various typos in comments	2021-03-22 23:06:48 +01:00
timer_list.c	timer_list: Use printk format instead of open-coded symbol lookup	2020-11-15 20:47:14 +01:00
vsyscall.c	timekeeping, clocksource: Fix various typos in comments	2021-03-22 23:06:48 +01:00