From: Francis Deslauriers <francis.deslauriers@efficios.com>
Date: Thu, 15 Jun 2017 17:40:35 +0000 (-0400)
Subject: uprobe: Mark uprobe event as registered
X-Git-Tag: v2.11.0-rc1~7
X-Git-Url: http://git.liburcu.org/?p=lttng-modules.git;a=commitdiff_plain;h=a344f64bd188272ee3d0a6055aaa6a3eabd0669d

uprobe: Mark uprobe event as registered

Signed-off-by: Francis Deslauriers <francis.deslauriers@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
---

diff --git a/lttng-events.c b/lttng-events.c
index 636a1891..a3030533 100644
--- a/lttng-events.c
+++ b/lttng-events.c
@@ -743,6 +743,17 @@ struct lttng_event *_lttng_event_create(struct lttng_channel *chan,
 		}
 		break;
 	case LTTNG_KERNEL_UPROBE:
+		/*
+		 * Needs to be explicitly enabled after creation, since
+		 * we may want to apply filters.
+		 */
+		event->enabled = 0;
+		event->registered = 1;
+		/*
+		 * Populate lttng_event structure before event
+		 * registration.
+		 */
+		smp_wmb();
 
 		ret = lttng_uprobes_register(event_param->name,
 				event_param->u.uprobe.path,
@@ -815,6 +826,7 @@ void register_event(struct lttng_event *event)
 			desc->name);
 		break;
 	case LTTNG_KERNEL_KPROBE:
+	case LTTNG_KERNEL_UPROBE:
 	case LTTNG_KERNEL_KRETPROBE:
 	case LTTNG_KERNEL_FUNCTION:
 	case LTTNG_KERNEL_NOOP: