Paul Gortmaker 0806f19305 tick/nohz: Use WARN_ON_ONCE() to prevent console saturation ... commit 40e97e4296 upstream. While running some testing on code that happened to allow the variable tick_nohz_full_running to get set but with no "possible" NOHZ cores to back up that setting, this warning triggered: if (unlikely(tick_do_timer_cpu == TICK_DO_TIMER_NONE)) WARN_ON(tick_nohz_full_running); The console was overwhemled with an endless stream of one WARN per tick per core and there was no way to even see what was going on w/o using a serial console to capture it and then trace it back to this. Change it to WARN_ON_ONCE(). Fixes: 08ae95f4fd ("nohz_full: Allow the boot CPU to be nohz_full") Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20211206145950.10927-3-paul.gortmaker@windriver.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2022-04-20 09:23:29 +02:00
..
alarmtimer.c	kernel, fs: Introduce and use set_restart_fn() and arch_set_restart_data()	2021-03-25 09:04:16 +01:00
clockevents.c
clocksource.c	clocksource: Avoid accidental unstable marking of clocksources	2022-01-27 10:54:06 +01:00
hrtimer.c	hrtimer: Ensure timerfd notification for HIGHRES=n	2021-09-15 09:50:25 +02:00
itimer.c	time: Prevent undefined behaviour in timespec64_to_ns()	2020-10-26 11:48:11 +01:00
jiffies.c	clocksource: Reduce clocksource-skew threshold	2022-01-27 10:54:05 +01:00
Kconfig	posix-cpu-timers: Provide mechanisms to defer timer handling to task_work	2020-08-06 16:50:59 +02:00
Makefile
namespace.c
ntp_internal.h
ntp.c
posix-clock.c
posix-cpu-timers.c	posix-cpu-timers: Clear task::posix_cputimers_work in copy_process()	2021-11-18 14:04:29 +01:00
posix-stubs.c
posix-timers.c	posix-timers: Preserve return value in clock_adjtime32()	2021-05-11 14:47:16 +02:00
posix-timers.h
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
tick-broadcast-hrtimer.c
tick-broadcast.c	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
tick-common.c
tick-internal.h	hrtimer: Ensure timerfd notification for HIGHRES=n	2021-09-15 09:50:25 +02:00
tick-oneshot.c
tick-sched.c	tick/nohz: Use WARN_ON_ONCE() to prevent console saturation	2022-04-20 09:23:29 +02:00
tick-sched.h
time.c
timeconst.bc
timeconv.c
timecounter.c
timekeeping_debug.c
timekeeping_internal.h	timekeeping/vsyscall: Provide vdso_update_begin/end()	2020-08-06 10:57:30 +02:00
timekeeping.c	timekeeping: Really make sure wall_to_monotonic isn't positive	2021-12-22 09:30:58 +01:00
timekeeping.h
timer_list.c
timer.c	timers: Move clearing of base::timer_running under base:: Lock	2021-08-12 13:22:15 +02:00
vsyscall.c	timekeeping/vsyscall: Provide vdso_update_begin/end()	2020-08-06 10:57:30 +02:00