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x86/apic: Provide and use helper for send_IPI_allbutself()

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To support IPI shorthands wrap invocations of apic->send_IPI_allbutself()
in a helper function, so the static key controlling the shorthand mode is
only in one place.

Fixup all callers.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20190722105220.492691679@linutronix.de
This commit is contained in:
Thomas Gleixner
2019-07-22 20:47:23 +02:00
parent 6a1cb5f5c6
commit 22ca7ee933
5 changed files with 18 additions and 9 deletions
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4
arch/x86/kernel/smp.c
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@@ -215,7 +215,7 @@ static void native_stop_other_cpus(int wait)
/* sync above data before sending IRQ */
wmb();
apic->send_IPI_allbutself(REBOOT_VECTOR);
apic_send_IPI_allbutself(REBOOT_VECTOR);
/*
* Don't wait longer than a second for IPI completion. The
@@ -241,7 +241,7 @@ static void native_stop_other_cpus(int wait)
pr_emerg("Shutting down cpus with NMI\n");
apic->send_IPI_allbutself(NMI_VECTOR);
apic_send_IPI_allbutself(NMI_VECTOR);
}
/*
* Don't wait longer than 10 ms if the caller didn't