[PATCH] Dont enable interrupts during interrupt processing on iseries

From: Stephen Rothwell <sfr@canb.auug.org.au>

Dont enable interrupts during interrupt processing on iseries

arch/ppc64/kernel/irq.c

@@ -374,8 +374,10 @@ static inline int handle_irq_event(int irq, struct pt_regs *regs,
 	int status = 0;
 	int retval = 0;
 
+#ifndef CONFIG_PPC_ISERIES
 	if (!(action->flags & SA_INTERRUPT))
 		local_irq_enable();
+#endif
 
 	do {
 		status |= action->flags;
@@ -384,7 +386,9 @@ static inline int handle_irq_event(int irq, struct pt_regs *regs,
 	} while (action);
 	if (status & SA_SAMPLE_RANDOM)
 		add_interrupt_randomness(irq);
+#ifndef CONFIG_PPC_ISERIES
 	local_irq_disable();
+#endif
 	return retval;
 }