linux-kernel - [PATCH tip/core/rcu 1/4] tracing: Export trace_clock

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Message-Id: <1359245120-2266-1-git-send-email-paulmck@linux.vnet.ibm.com>
Date:	Sat, 26 Jan 2013 16:05:17 -0800
From:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
To:	linux-kernel@...r.kernel.org
Cc:	mingo@...e.hu, laijs@...fujitsu.com, dipankar@...ibm.com,
	akpm@...ux-foundation.org, mathieu.desnoyers@...ymtl.ca,
	josh@...htriplett.org, niv@...ibm.com, tglx@...utronix.de,
	peterz@...radead.org, rostedt@...dmis.org, Valdis.Kletnieks@...edu,
	dhowells@...hat.com, edumazet@...gle.com, darren@...art.com,
	fweisbec@...il.com, sbw@....edu,
	"Paul E. McKenney" <paul.mckenney@...aro.org>
Subject: [PATCH tip/core/rcu 1/4] tracing: Export trace_clock_local()

From: "Paul E. McKenney" <paul.mckenney@...aro.org>

The rcutorture tests need to be able to trace the time of the
beginning of an RCU read-side critical section, and thus need access
to trace_clock_local().  This commit therefore adds a the needed
EXPORT_SYMBOL_GPL().

Signed-off-by: Paul E. McKenney <paul.mckenney@...aro.org>
Reviewed-by: Josh Triplett <josh@...htriplett.org>
---
 kernel/trace/trace_clock.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/kernel/trace/trace_clock.c b/kernel/trace/trace_clock.c
index 3947835..1bbb1b2 100644
--- a/kernel/trace/trace_clock.c
+++ b/kernel/trace/trace_clock.c
@@ -44,6 +44,7 @@ u64 notrace trace_clock_local(void)
 
 	return clock;
 }
+EXPORT_SYMBOL_GPL(trace_clock_local);
 
 /*
  * trace_clock(): 'between' trace clock. Not completely serialized,
-- 
1.7.8

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