summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorHeiko Carstens <heiko.carstens@de.ibm.com>2012-03-11 15:59:30 (GMT)
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2012-03-11 15:59:28 (GMT)
commit2215011dd9c1b01f1fc430620ed31f2baad267c3 (patch)
tree8674b35cae6475d48cb76cc36afe21bd75ab72c8
parente3c652b533aab733bf3ffb50654fb82f079c5329 (diff)
downloadlinux-2215011dd9c1b01f1fc430620ed31f2baad267c3.tar.xz
[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 <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
-rw-r--r--arch/s390/include/asm/hardirq.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/s390/include/asm/hardirq.h b/arch/s390/include/asm/hardirq.h
index e4155d3..510ba9e 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