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| author | Ingo Molnar <mingo@kernel.org> | 2024-03-25 11:32:29 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2024-03-25 11:32:29 +0100 |
| commit | f4566a1e73957800df75a3dd2dccee8a4697f327 (patch) | |
| tree | b043b875228c0b25988af66c680d60cae69d761d /kernel/time/timer.c | |
| parent | b9e6e28663928cab836a19abbdec3d036a07db3b (diff) | |
| parent | 4cece764965020c22cff7665b18a012006359095 (diff) | |
Merge tag 'v6.9-rc1' into sched/core, to pick up fixes and to refresh the branch
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/time/timer.c')
| -rw-r--r-- | kernel/time/timer.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/kernel/time/timer.c b/kernel/time/timer.c index ff49ddcc9800..3b57a73f249a 100644 --- a/kernel/time/timer.c +++ b/kernel/time/timer.c @@ -642,7 +642,8 @@ trigger_dyntick_cpu(struct timer_base *base, struct timer_list *timer) * the base lock: */ if (base->is_idle) { - WARN_ON_ONCE(!(timer->flags & TIMER_PINNED)); + WARN_ON_ONCE(!(timer->flags & TIMER_PINNED || + tick_nohz_full_cpu(base->cpu))); wake_up_nohz_cpu(base->cpu); } } @@ -2292,6 +2293,13 @@ static inline u64 __get_next_timer_interrupt(unsigned long basej, u64 basem, */ if (!base_local->is_idle && time_after(nextevt, basej + 1)) { base_local->is_idle = true; + /* + * Global timers queued locally while running in a task + * in nohz_full mode need a self-IPI to kick reprogramming + * in IRQ tail. + */ + if (tick_nohz_full_cpu(base_local->cpu)) + base_global->is_idle = true; trace_timer_base_idle(true, base_local->cpu); } *idle = base_local->is_idle; @@ -2364,6 +2372,8 @@ void timer_clear_idle(void) * path. Required for BASE_LOCAL only. */ __this_cpu_write(timer_bases[BASE_LOCAL].is_idle, false); + if (tick_nohz_full_cpu(smp_processor_id())) + __this_cpu_write(timer_bases[BASE_GLOBAL].is_idle, false); trace_timer_base_idle(false, smp_processor_id()); /* Activate without holding the timer_base->lock */ |