lkml.org 
[lkml]   [2008]   [Nov]   [14]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
Subject[patch 01/16] RCU read sched notrace
Add _notrace version to rcu_read_*_sched().

Impact: new API, useful for tracepoints and markers.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
CC: Peter Zijlstra <peterz@infradead.org>
CC: Paul E McKenney <paulmck@linux.vnet.ibm.com>
CC: 'Ingo Molnar' <mingo@elte.hu>
CC: akpm@linux-foundation.org
---
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


\
 
 \ /
  Last update: 2008-11-15 00:07    [from the cache]
©2003-2011 Jasper Spaans