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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2020-12-27 20:03:41 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-12-27 20:03:41 +0300 |
| commit | 2eeefc60ad70ffb7a5daf9f47aef5b1ebd1f39ad (patch) | |
| tree | 0ebab4a8e90013c61459efb074e80dddc924b571 /kernel/time/tick-sched.c | |
| parent | 3b80dee70eaa5f9a120db058c30cc8e63c443571 (diff) | |
| parent | f6f5cd840ae782680c5e94048c72420e4e6857f9 (diff) | |
| download | linux-2eeefc60ad70ffb7a5daf9f47aef5b1ebd1f39ad.tar.xz | |
Merge tag 'timers-urgent-2020-12-27' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer fixes from Ingo Molnar:
"Update/fix two CPU sanity checks in the hotplug and the boot code, and
fix a typo in the Kconfig help text.
[ Context: the first two commits are the result of an ongoing
annotation+review work of (intentional) tick_do_timer_cpu() data
races reported by KCSAN, but the annotations aren't fully cooked
yet ]"
* tag 'timers-urgent-2020-12-27' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
timekeeping: Fix spelling mistake in Kconfig "fullfill" -> "fulfill"
tick/sched: Remove bogus boot "safety" check
tick: Remove pointless cpu valid check in hotplug code
Diffstat (limited to 'kernel/time/tick-sched.c')
| -rw-r--r-- | kernel/time/tick-sched.c | 7 |
1 files changed, 0 insertions, 7 deletions
diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c index 030282994b3e..e10a4af88737 100644 --- a/kernel/time/tick-sched.c +++ b/kernel/time/tick-sched.c @@ -989,13 +989,6 @@ static bool can_stop_idle_tick(int cpu, struct tick_sched *ts) */ if (tick_do_timer_cpu == cpu) return false; - /* - * Boot safety: make sure the timekeeping duty has been - * assigned before entering dyntick-idle mode, - * tick_do_timer_cpu is TICK_DO_TIMER_BOOT - */ - if (unlikely(tick_do_timer_cpu == TICK_DO_TIMER_BOOT)) - return false; /* Should not happen for nohz-full */ if (WARN_ON_ONCE(tick_do_timer_cpu == TICK_DO_TIMER_NONE)) |