x86 kdump: move crashing_cpu assignment to nmi_shootdown_cpus()

Impact: cleanup

This variable will be moved to non-kdump-specific code.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

diff --git a/arch/x86/kernel/crash.c b/arch/x86/kernel/crash.c
index 60475422a51a36f8ac04bed3eaca932a187ba2a3..ed2f0f9dc894d9599e6b19b4218771140047a6e2 100644 (file)
--- a/arch/x86/kernel/crash.c
+++ b/arch/x86/kernel/crash.c
@@ -29,10 +29,11 @@
 
 #include <mach_ipi.h>
 
+#if defined(CONFIG_SMP) && defined(CONFIG_X86_LOCAL_APIC)
+
 /* This keeps a track of which one is crashing cpu. */
 static int crashing_cpu;
 
-#if defined(CONFIG_SMP) && defined(CONFIG_X86_LOCAL_APIC)
 static atomic_t waiting_for_crash_ipi;
 
 static void kdump_nmi_callback(int cpu, struct die_args *args)
@@ -100,6 +101,9 @@ static void nmi_shootdown_cpus(void)
 {
        unsigned long msecs;
 
+       /* Make a note of crashing cpu. Will be used in NMI callback.*/
+       crashing_cpu = safe_smp_processor_id();
+
        atomic_set(&waiting_for_crash_ipi, num_online_cpus() - 1);
        /* Would it be better to replace the trap vector here? */
        if (register_die_notifier(&crash_nmi_nb))
@@ -140,8 +144,6 @@ void native_machine_crash_shutdown(struct pt_regs *regs)
        /* The kernel is broken so disable interrupts */
        local_irq_disable();
 
-       /* Make a note of crashing cpu. Will be used in NMI callback.*/
-       crashing_cpu = safe_smp_processor_id();
        nmi_shootdown_cpus();
        lapic_shutdown();
 #if defined(CONFIG_X86_IO_APIC)