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2023-11-07 f45e756958099c35d6afb746df1d40a1c6302cfc

 kernel/kernel/time/alarmtimer.c
.. .. @@ -438,7 +438,7 @@
438 438  		int ret = alarm_try_to_cancel(alarm);
439 439  		if (ret >= 0)
440 440  			return ret;
441 -		cpu_relax();
441 +		hrtimer_grab_expiry_lock(&alarm->timer);
442 442  	}
443 443  }
444 444  EXPORT_SYMBOL_GPL(alarm_cancel);

..	..	@@ -438,7 +438,7 @@
438	438	int ret = alarm_try_to_cancel(alarm);
439	439	if (ret >= 0)
440	440	return ret;
441		- cpu_relax();
	441	+ hrtimer_grab_expiry_lock(&alarm->timer);
442	442	}
443	443	}
444	444	EXPORT_SYMBOL_GPL(alarm_cancel);