linux-kernel - [RFC PATCH 3/6] x86: Tell that sched clock is callable in nmi

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Message-Id: <1377103341-15235-4-git-send-email-fweisbec@gmail.com>
Date:	Wed, 21 Aug 2013 18:42:18 +0200
From:	Frederic Weisbecker <fweisbec@...il.com>
To:	LKML <linux-kernel@...r.kernel.org>
Cc:	Frederic Weisbecker <fweisbec@...il.com>,
	Ingo Molnar <mingo@...nel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Peter Zijlstra <peterz@...radead.org>,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	John Stultz <john.stultz@...aro.org>,
	Steven Rostedt <rostedt@...dmis.org>,
	Don Zickus <dzickus@...hat.com>
Subject: [RFC PATCH 3/6] x86: Tell that sched clock is callable in nmi

The x86 version of sched_clock() seem to be safely callable
from NMIs, tell about that.

Signed-off-by: Frederic Weisbecker <fweisbec@...il.com>
Cc: Ingo Molnar <mingo@...nel.org>
Cc: Thomas Gleixner <tglx@...utronix.de>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Paul E. McKenney <paulmck@...ux.vnet.ibm.com>
Cc: John Stultz <john.stultz@...aro.org>
Cc: Steven Rostedt <rostedt@...dmis.org>
Cc: Don Zickus <dzickus@...hat.com>
---
 arch/x86/Kconfig |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 7fbda5c..fc7c34c 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -125,6 +125,7 @@ config X86
 	select RTC_LIB
 	select HAVE_DEBUG_STACKOVERFLOW
 	select HAVE_NSECS_TO_CYCLES
+	select HAVE_SCHED_CLOCK_NMI
 
 config INSTRUCTION_DECODER
 	def_bool y
-- 
1.7.5.4

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