X-Git-Url: http://git.liburcu.org/?a=blobdiff_plain;f=lttng-context-vtid.c;h=903e296ca1bbd94cb356a86d481a6e99b61f8b98;hb=refs%2Fheads%2Fstable-2.7;hp=c98bdf1f92a91e6ccca16bac45a47ea01b5f2070;hpb=06254b0fe2a909dabb889fb0d022384906f6f37a;p=lttng-modules.git

diff --git a/lttng-context-vtid.c b/lttng-context-vtid.c
index c98bdf1f..903e296c 100644
--- a/lttng-context-vtid.c
+++ b/lttng-context-vtid.c
@@ -56,6 +56,22 @@ void vtid_record(struct lttng_ctx_field *field,
 	chan->ops->event_write(ctx, &vtid, sizeof(vtid));
 }
 
+static
+void vtid_get_value(struct lttng_ctx_field *field,
+		union lttng_ctx_value *value)
+{
+	pid_t vtid;
+
+	/*
+	 * nsproxy can be NULL when scheduled out of exit.
+	 */
+	if (!current->nsproxy)
+		vtid = 0;
+	else
+		vtid = task_pid_vnr(current);
+	value->s64 = vtid;
+}
+
 int lttng_add_vtid_to_ctx(struct lttng_ctx **ctx)
 {
 	struct lttng_ctx_field *field;
@@ -77,11 +93,9 @@ int lttng_add_vtid_to_ctx(struct lttng_ctx **ctx)
 	field->event_field.type.u.basic.integer.encoding = lttng_encode_none;
 	field->get_size = vtid_get_size;
 	field->record = vtid_record;
+	field->get_value = vtid_get_value;
+	lttng_context_update(*ctx);
 	wrapper_vmalloc_sync_all();
 	return 0;
 }
 EXPORT_SYMBOL_GPL(lttng_add_vtid_to_ctx);
-
-MODULE_LICENSE("GPL and additional rights");
-MODULE_AUTHOR("Mathieu Desnoyers");
-MODULE_DESCRIPTION("Linux Trace Toolkit vTID Context");