[patch 01/16] RCU read sched notrace

[Mathieu Desnoyers]

Add _notrace version to rcu_read_*_sched().

Impact: new API, useful for tracepoints and markers.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@xxxxxxxxxx>
CC: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
CC: Paul E McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
CC: 'Ingo Molnar' <mingo@xxxxxxx>
CC: akpm@xxxxxxxxxxxxxxxxxxxx
---
 include/linux/rcupdate.h |    2 ++
 1 file changed, 2 insertions(+)

Index: linux-2.6-lttng/include/linux/rcupdate.h
===================================================================
--- linux-2.6-lttng.orig/include/linux/rcupdate.h	2008-10-08 10:27:57.000000000 -0400
+++ linux-2.6-lttng/include/linux/rcupdate.h	2008-10-08 10:40:48.000000000 -0400
@@ -142,6 +142,7 @@ struct rcu_head {
  * on the write-side to insure proper synchronization.
  */
 #define rcu_read_lock_sched() preempt_disable()
+#define rcu_read_lock_sched_notrace() preempt_disable_notrace()
 
 /*
  * rcu_read_unlock_sched - marks the end of a RCU-classic critical section
@@ -149,6 +150,7 @@ struct rcu_head {
  * See rcu_read_lock_sched for more information.
  */
 #define rcu_read_unlock_sched() preempt_enable()
+#define rcu_read_unlock_sched_notrace() preempt_enable_notrace()
 
 
 

-- 
Mathieu Desnoyers
OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F  BA06 3F25 A8FE 3BAE 9A68
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