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authorThomas Gleixner <tglx@linutronix.de>2019-07-22 20:47:23 +0200
committerThomas Gleixner <tglx@linutronix.de>2019-07-25 16:12:00 +0200
commit22ca7ee933a39f542ff6f81fc64f8036eff56519 (patch)
treeeb53bd053af83574b3c3f9424b8fe0385a1df4c2 /arch/x86/kernel/reboot.c
parentx86/apic: Add static key to Control IPI shorthands (diff)
downloadlinux-22ca7ee933a39f542ff6f81fc64f8036eff56519.tar.xz
linux-22ca7ee933a39f542ff6f81fc64f8036eff56519.zip
x86/apic: Provide and use helper for send_IPI_allbutself()
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
Diffstat (limited to 'arch/x86/kernel/reboot.c')
-rw-r--r--arch/x86/kernel/reboot.c7
1 files changed, 1 insertions, 6 deletions
diff --git a/arch/x86/kernel/reboot.c b/arch/x86/kernel/reboot.c
index 09d6bded3c1e..0cc7c0b106bb 100644
--- a/arch/x86/kernel/reboot.c
+++ b/arch/x86/kernel/reboot.c
@@ -828,11 +828,6 @@ static int crash_nmi_callback(unsigned int val, struct pt_regs *regs)
return NMI_HANDLED;
}
-static void smp_send_nmi_allbutself(void)
-{
- apic->send_IPI_allbutself(NMI_VECTOR);
-}
-
/*
* Halt all other CPUs, calling the specified function on each of them
*
@@ -861,7 +856,7 @@ void nmi_shootdown_cpus(nmi_shootdown_cb callback)
*/
wmb();
- smp_send_nmi_allbutself();
+ apic_send_IPI_allbutself(NMI_VECTOR);
/* Kick CPUs looping in NMI context. */
WRITE_ONCE(crash_ipi_issued, 1);