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authorIngo Molnar <mingo@elte.hu>2011-12-05 14:34:00 +0100
committerIngo Molnar <mingo@elte.hu>2011-12-05 14:34:00 +0100
commitdc440d10e1668b15fe704a23adb9b53fbbb24a44 (patch)
treebadea13d8ad1464283d12d7e40c08e748b9209d7 /kernel
parent2c3757e54e0d95f47bdc160fdc4f14849f3437cf (diff)
parentd3d9acf646679c1981032b0985b386d12fccc60c (diff)
Merge branch 'tip/perf/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace into perf/urgent
Diffstat (limited to 'kernel')
-rw-r--r--kernel/trace/trace_events_filter.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/kernel/trace/trace_events_filter.c b/kernel/trace/trace_events_filter.c
index 816d3d07497..d6e7926dcd2 100644
--- a/kernel/trace/trace_events_filter.c
+++ b/kernel/trace/trace_events_filter.c
@@ -1686,7 +1686,7 @@ static int replace_system_preds(struct event_subsystem *system,
* replace the filter for the call.
*/
filter = call->filter;
- call->filter = filter_item->filter;
+ rcu_assign_pointer(call->filter, filter_item->filter);
filter_item->filter = filter;
fail = false;
@@ -1741,7 +1741,7 @@ int apply_event_filter(struct ftrace_event_call *call, char *filter_string)
filter = call->filter;
if (!filter)
goto out_unlock;
- call->filter = NULL;
+ RCU_INIT_POINTER(call->filter, NULL);
/* Make sure the filter is not being used */
synchronize_sched();
__free_filter(filter);
@@ -1782,7 +1782,7 @@ out:
* string
*/
tmp = call->filter;
- call->filter = filter;
+ rcu_assign_pointer(call->filter, filter);
if (tmp) {
/* Make sure the call is done with the filter */
synchronize_sched();