Version 2.12.6

[lttng-modules.git] / lttng-events.c

diff --git a/lttng-events.c b/lttng-events.c
index f3398adc6f11d6db7bc3ce8844fb2a3c3dcbc10f..5be4c9b8f4a999a432dca5b400ba6406f17793eb 100644 (file)
--- a/lttng-events.c
+++ b/lttng-events.c
@@ -77,7 +77,8 @@ int _lttng_field_statedump(struct lttng_session *session,
 
 void synchronize_trace(void)
 {
-#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(5,1,0))
+#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(5,1,0) || \
+       LTTNG_RHEL_KERNEL_RANGE(4,18,0,193,0,0, 4,19,0,0,0,0))
        synchronize_rcu();
 #else
        synchronize_sched();
@@ -704,6 +705,8 @@ struct lttng_event *_lttng_event_create(struct lttng_channel *chan,
                event_return->enabled = 0;
                event_return->registered = 1;
                event_return->instrumentation = itype;
+               INIT_LIST_HEAD(&event_return->bytecode_runtime_head);
+               INIT_LIST_HEAD(&event_return->enablers_ref_head);
                /*
                 * Populate lttng_event structure before kretprobe registration.
                 */
@@ -919,6 +922,8 @@ int _lttng_event_unregister(struct lttng_event *event)
 static
 void _lttng_event_destroy(struct lttng_event *event)
 {
+       struct lttng_enabler_ref *enabler_ref, *tmp_enabler_ref;
+
        switch (event->instrumentation) {
        case LTTNG_KERNEL_TRACEPOINT:
                lttng_event_put(event->desc);
@@ -944,6 +949,11 @@ void _lttng_event_destroy(struct lttng_event *event)
        }
        list_del(&event->list);
        lttng_destroy_context(event->ctx);
+       lttng_free_event_filter_runtime(event);
+       /* Free event enabler refs */
+       list_for_each_entry_safe(enabler_ref, tmp_enabler_ref,
+                                &event->enablers_ref_head, node)
+               kfree(enabler_ref);
        kmem_cache_free(event_cache, event);
 }
 
@@ -3087,6 +3097,9 @@ static int __init lttng_events_init(void)
 #else
                "");
 #endif
+#ifdef CONFIG_LTTNG_EXPERIMENTAL_BITWISE_ENUM
+       printk(KERN_NOTICE "LTTng: Experimental bitwise enum enabled.\n");
+#endif /* CONFIG_LTTNG_EXPERIMENTAL_BITWISE_ENUM */
        return 0;
 
 error_hotplug: