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hrtimer: Fix trace oddity

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It turns out that __run_hrtimer() will trace like:

          <idle>-0     [032] d.h2. 20705.474563: hrtimer_cancel:       hrtimer=0xff2db8f77f8226e8
          <idle>-0     [032] d.h1. 20705.474563: hrtimer_expire_entry: hrtimer=0xff2db8f77f8226e8 now=20699452001850 function=tick_nohz_handler/0x0

Which is a bit nonsensical, the timer doesn't get canceled on
expiration. The cause is the use of the incorrect debug helper.

Fixes: c6a2a17702 ("hrtimer: Add tracepoint for hrtimers")
Reported-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://patch.msgid.link/20260121143208.219595606@infradead.org
This commit is contained in:
Thomas Gleixner
2026-01-19 11:38:34 +01:00
committed by Peter Zijlstra
parent 21c0e92d06
commit 5d6446f409
1 changed files with 1 additions and 1 deletions
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2
kernel/time/hrtimer.c
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@@ -1742,7 +1742,7 @@ static void __run_hrtimer(struct hrtimer_cpu_base *cpu_base,
lockdep_assert_held(&cpu_base->lock);
debug_deactivate(timer);
debug_hrtimer_deactivate(timer);
base->running = timer;
/*