x86: use cpu_relax instead of rep_nop
This is done for smpboot_32.c
Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/arch/x86/kernel/smpboot_32.c b/arch/x86/kernel/smpboot_32.c
index ee82659..2dd95ba 100644
--- a/arch/x86/kernel/smpboot_32.c
+++ b/arch/x86/kernel/smpboot_32.c
@@ -185,7 +185,7 @@
*/
if (cpu_isset(cpuid, cpu_callout_map))
break;
- rep_nop();
+ cpu_relax();
}
if (!time_before(jiffies, timeout)) {
@@ -242,7 +242,7 @@
preempt_disable();
smp_callin();
while (!cpu_isset(smp_processor_id(), smp_commenced_mask))
- rep_nop();
+ cpu_relax();
/*
* Check TSC synchronization with the BP:
*/