x86: move state update out of ipi_lock

it does not need to be inside lock. Do the way i386 does.

Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

diff --git a/arch/x86/kernel/smpboot_64.c b/arch/x86/kernel/smpboot_64.c
index c213345..cfcfd2c 100644 (file)
--- a/arch/x86/kernel/smpboot_64.c
+++ b/arch/x86/kernel/smpboot_64.c
@@ -233,10 +233,10 @@ void __cpuinit start_secondary(void)
         */
        spin_unlock(&vector_lock);
        cpu_set(smp_processor_id(), cpu_online_map);
-       per_cpu(cpu_state, smp_processor_id()) = CPU_ONLINE;
-
        unlock_ipi_call_lock();
 
+       per_cpu(cpu_state, smp_processor_id()) = CPU_ONLINE;
+
        setup_secondary_clock();
 
        cpu_idle();