[patch 3/4] powerpc 2.6.21-rt1: add a need_resched_delayed() check

[Tsutomu OWA]

Add a need_resched_delayed() check.
This was pointed by Sergei Shtylyov; 
  http://ozlabs.org/pipermail/linuxppc-dev/2007-March/033148.html

Signed-off-by: Tsutomu Owa <tsutomu.owa at toshiba.co.jp>
-- owa

diff -rup linux-2.6.21-rt1/arch/powerpc/kernel/idle.c rt/arch/powerpc/kernel/idle.c
--- linux-2.6.21-rt1/arch/powerpc/kernel/idle.c	2007-05-07 14:08:12.000000000 +0900
+++ rt/arch/powerpc/kernel/idle.c	2007-05-07 14:05:30.000000000 +0900
@@ -70,7 +70,9 @@ void cpu_idle(void)
 				local_irq_disable();
 
 				/* check again after disabling irqs */
-				if (!need_resched() && !cpu_should_die())
+				if (!need_resched() &&
+				    !need_resched_delayed() &&
+				    !cpu_should_die())
 					ppc_md.power_save();
 
 				local_irq_enable();