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From 951a274e3c0e78198fcd596ad0433d5f646becc6 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Fri, 24 Jul 2009 12:38:56 +0200
Subject: [PATCH] core: Provide preempt_*_(no)rt variants
commit 769610edf15e38b8fa5f6beac8e6bfaeaff690d1 in tip.
RT needs a few preempt_disable/enable points which are not necessary
otherwise. Implement variants to avoid #ifdeffery.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
---
include/linux/preempt.h | 12 ++++++++++++
1 files changed, 12 insertions(+), 0 deletions(-)
diff --git a/include/linux/preempt.h b/include/linux/preempt.h
index 5c7dba8..9dfe0eb 100644
--- a/include/linux/preempt.h
+++ b/include/linux/preempt.h
@@ -107,6 +107,18 @@ do { \
#endif
+#ifdef CONFIG_PREEMPT_RT
+# define preempt_disable_rt() preempt_disable()
+# define preempt_enable_rt() preempt_enable()
+# define preempt_disable_nort() do { } while (0)
+# define preempt_enable_nort() do { } while (0)
+#else
+# define preempt_disable_rt() do { } while (0)
+# define preempt_enable_rt() do { } while (0)
+# define preempt_disable_nort() preempt_disable()
+# define preempt_enable_nort() preempt_enable()
+#endif
+
#ifdef CONFIG_PREEMPT_NOTIFIERS
struct preempt_notifier;
--
1.7.0.4
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