Messages in this thread Patch in this message | | | Date | Fri, 14 Nov 2008 17:47:34 -0500 | From | Mathieu Desnoyers <> | Subject | [patch 01/16] RCU read sched notrace |
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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
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