X-Git-Url: http://git.lttng.org./?a=blobdiff_plain;f=include%2Flttng%2Fust-tracepoint-event.h;h=e46cc1a1a28cc4d9c440a3ccb816d79ef530e840;hb=13b21cd60df2abab292653cead980ef27dbfab08;hp=63d5af0398a959fe3146d82a54814fe381b840b7;hpb=dcdeaff04c5b8f2c0e69ab896bd170e2762b7f53;p=lttng-ust.git

diff --git a/include/lttng/ust-tracepoint-event.h b/include/lttng/ust-tracepoint-event.h
index 63d5af03..e46cc1a1 100644
--- a/include/lttng/ust-tracepoint-event.h
+++ b/include/lttng/ust-tracepoint-event.h
@@ -10,6 +10,14 @@
  *
  * The above copyright notice and this permission notice shall be included in
  * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
  */
 
 #include <stdio.h>
@@ -18,8 +26,15 @@
 #include <lttng/ust-events.h>
 #include <lttng/ringbuffer-config.h>
 #include <lttng/ust-compiler.h>
+#include <lttng/tracepoint.h>
 #include <string.h>
 
+#undef tp_list_for_each_entry_rcu
+#define tp_list_for_each_entry_rcu(pos, head, member)	\
+	for (pos = cds_list_entry(tp_rcu_dereference_bp((head)->next), __typeof__(*pos), member);	\
+	     &pos->member != (head);					\
+	     pos = cds_list_entry(tp_rcu_dereference_bp(pos->member.next), __typeof__(*pos), member))
+
 /*
  * TRACEPOINT_EVENT_CLASS declares a class of tracepoints receiving the
  * same arguments and having the same field layout.
@@ -487,13 +502,15 @@ void __event_probe__##_provider##___##_name(_TP_ARGS_DATA_PROTO(_args))	      \
 		return;							      \
 	if (caa_unlikely(!CMM_ACCESS_ONCE(__event->enabled)))		      \
 		return;							      \
+	if (caa_unlikely(!TP_RCU_LINK_TEST()))				      \
+		return;							      \
 	if (caa_unlikely(!cds_list_empty(&__event->bytecode_runtime_head))) { \
 		struct lttng_bytecode_runtime *bc_runtime;		      \
 		int __filter_record = __event->has_enablers_without_bytecode; \
 									      \
 		__event_prepare_filter_stack__##_provider##___##_name(__stackvar.__filter_stack_data, \
 			_TP_ARGS_DATA_VAR(_args));			      \
-		cds_list_for_each_entry_rcu(bc_runtime, &__event->bytecode_runtime_head, node) { \
+		tp_list_for_each_entry_rcu(bc_runtime, &__event->bytecode_runtime_head, node) { \
 			if (caa_unlikely(bc_runtime->filter(bc_runtime,	      \
 					__stackvar.__filter_stack_data) & LTTNG_FILTER_RECORD_FLAG)) \
 				__filter_record = 1;			      \