X-Git-Url: http://git.rot13.org/?a=blobdiff_plain;f=arch%2Fsparc64%2Fkernel%2Fsmp.c;h=797a65493fb848cc836ca4248171e19149f42bc3;hb=4ddccb8eb9d1c57c7dd3838d8328690bf1869145;hp=5d90ee9aebf1a29eb1d18e165b73551875b9c584;hpb=f24e09754bcb4d367664ea635c0c4ccde6ec4df5;p=powerpc.git

diff --git a/arch/sparc64/kernel/smp.c b/arch/sparc64/kernel/smp.c
index 5d90ee9aeb..797a65493f 100644
--- a/arch/sparc64/kernel/smp.c
+++ b/arch/sparc64/kernel/smp.c
@@ -168,6 +168,9 @@ void __init smp_callin(void)
 		rmb();
 
 	cpu_set(cpuid, cpu_online_map);
+
+	/* idle thread is expected to have preempt disabled */
+	preempt_disable();
 }
 
 void cpu_panic(void)
@@ -1149,20 +1152,9 @@ void __init smp_cpus_done(unsigned int max_cpus)
 	       (bogosum/(5000/HZ))%100);
 }
 
-/* This needn't do anything as we do not sleep the cpu
- * inside of the idler task, so an interrupt is not needed
- * to get a clean fast response.
- *
- * XXX Reverify this assumption... -DaveM
- *
- * Addendum: We do want it to do something for the signal
- *           delivery case, we detect that by just seeing
- *           if we are trying to send this to an idler or not.
- */
 void smp_send_reschedule(int cpu)
 {
-	if (cpu_data(cpu).idle_volume == 0)
-		smp_receive_signal(cpu);
+	smp_receive_signal(cpu);
 }
 
 /* This is a nop because we capture all other cpus