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Commit 7c2ba83f authored by Cyrill Gorcunov's avatar Cyrill Gorcunov Committed by Thomas Gleixner
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x86: nmi_32.c cleanup - use for_each_online_cpu helper 



Since cpu_online_map is touched (by for_each_online_cpu)
at moment when cpu_callin_map is already filled up we can
get rid of its checking at all

Signed-off-by: default avatarCyrill Gorcunov <gorcunov@gmail.com>
Cc: hpa@zytor.com
Cc: mingo@redhat.com
Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
parent 96f9dcb1

arch/x86/kernel/nmi_32.c

+1 −7
Original line number Diff line number Diff line
@@ -108,13 +108,7 @@ int __init check_nmi_watchdog(void) 
	local_irq_enable();

	mdelay((20*1000)/nmi_hz); // wait 20 ticks



	for_each_possible_cpu(cpu) {

#ifdef CONFIG_SMP

		/* Check cpu_callin_map here because that is set

		   after the timer is started. */

		if (!cpu_isset(cpu, cpu_callin_map))

			continue;

#endif

	for_each_online_cpu(cpu) {

		if (!per_cpu(wd_enabled, cpu))

			continue;

		if (nmi_count(cpu) - prev_nmi_count[cpu] <= 5) {