From 2215011dd9c1b01f1fc430620ed31f2baad267c3 Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Sun, 11 Mar 2012 11:59:30 -0400 Subject: [PATCH] [S390] irq: set __ARCH_IRQ_EXIT_IRQS_DISABLED Set __ARCH_IRQ_EXIT_IRQS_DISABLED in order to optimize irq_exit() a bit, since we call __do_softirq() instead of do_softirq(). This saves several needless checks, pointless interrupt disabling and an extra branch. If do_softirq() gets called from process context we still switch to the async stack. Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky --- arch/s390/include/asm/hardirq.h | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/s390/include/asm/hardirq.h b/arch/s390/include/asm/hardirq.h index e4155d3eb2cb..510ba9ef4248 100644 --- a/arch/s390/include/asm/hardirq.h +++ b/arch/s390/include/asm/hardirq.h @@ -18,6 +18,7 @@ #define __ARCH_IRQ_STAT #define __ARCH_HAS_DO_SOFTIRQ +#define __ARCH_IRQ_EXIT_IRQS_DISABLED #define HARDIRQ_BITS 8 -- 2.39.2