X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=src%2Fbin%2Flttng-sessiond%2Fkernel.c;h=4327db24bdb3291f575da0d90c143e280c7bdbfa;hb=45798a31cc31b86a669221676ab490c035c8dfdd;hp=f5979c9b4f2cf26028c8d4f6f120349b9a0eed9c;hpb=dcabc1905756b2999886313ec33705f7571a3fb9;p=lttng-tools.git

diff --git a/src/bin/lttng-sessiond/kernel.c b/src/bin/lttng-sessiond/kernel.c
index f5979c9b4..4327db24b 100644
--- a/src/bin/lttng-sessiond/kernel.c
+++ b/src/bin/lttng-sessiond/kernel.c
@@ -203,16 +203,15 @@ error:
  */
 static
 int extract_userspace_probe_offset_function_elf(
-		struct lttng_userspace_probe_location *probe_location,
+		const struct lttng_userspace_probe_location *probe_location,
 		struct ltt_kernel_session *session, uint64_t *offset)
 {
 	int fd;
 	int ret = 0;
 	const char *symbol = NULL;
-	struct lttng_userspace_probe_location_lookup_method *lookup = NULL;
+	const struct lttng_userspace_probe_location_lookup_method *lookup = NULL;
 	enum lttng_userspace_probe_location_lookup_method_type lookup_method_type;
 
-
 	assert(lttng_userspace_probe_location_get_type(probe_location) ==
 			LTTNG_USERSPACE_PROBE_LOCATION_TYPE_FUNCTION);
 
@@ -266,12 +265,12 @@ end:
  */
 static
 int extract_userspace_probe_offset_tracepoint_sdt(
-		struct lttng_userspace_probe_location *probe_location,
+		const struct lttng_userspace_probe_location *probe_location,
 		struct ltt_kernel_session *session, uint64_t **offsets,
 		uint32_t *offsets_count)
 {
 	enum lttng_userspace_probe_location_lookup_method_type lookup_method_type;
-	struct lttng_userspace_probe_location_lookup_method *lookup = NULL;
+	const struct lttng_userspace_probe_location_lookup_method *lookup = NULL;
 	const char *probe_name = NULL, *provider_name = NULL;
 	int ret = 0;
 	int fd, i;
@@ -342,9 +341,9 @@ static
 int userspace_probe_add_callsites(struct lttng_event *ev,
 			struct ltt_kernel_session *session, int fd)
 {
-	struct lttng_userspace_probe_location_lookup_method *lookup_method = NULL;
+	const struct lttng_userspace_probe_location_lookup_method *lookup_method = NULL;
 	enum lttng_userspace_probe_location_lookup_method_type type;
-	struct lttng_userspace_probe_location *location = NULL;
+	const struct lttng_userspace_probe_location *location = NULL;
 	int ret;
 
 	assert(ev);
@@ -1402,11 +1401,12 @@ error:
 /*
  * Rotate a kernel session.
  *
- * Return 0 on success or else return a LTTNG_ERR code.
+ * Return LTTNG_OK on success or else an LTTng error code.
  */
-int kernel_rotate_session(struct ltt_session *session)
+enum lttng_error_code kernel_rotate_session(struct ltt_session *session)
 {
 	int ret;
+	enum lttng_error_code status = LTTNG_OK;
 	struct consumer_socket *socket;
 	struct lttng_ht_iter iter;
 	struct ltt_kernel_session *ksess = session->kernel_session;
@@ -1427,37 +1427,17 @@ int kernel_rotate_session(struct ltt_session *session)
 			socket, node.node) {
 		struct ltt_kernel_channel *chan;
 
-		/*
-		 * Account the metadata channel first to make sure the
-		 * number of channels waiting for a rotation cannot
-		 * reach 0 before we complete the iteration over all
-		 * the channels.
-		 */
-		ret = rotate_add_channel_pending(ksess->metadata->key,
-				LTTNG_DOMAIN_KERNEL, session);
-		if (ret < 0) {
-			ret = LTTNG_ERR_KERN_CONSUMER_FAIL;
-			goto error;
-		}
-
 		/* For each channel, ask the consumer to rotate it. */
 		cds_list_for_each_entry(chan, &ksess->channel_list.head, list) {
-			ret = rotate_add_channel_pending(chan->key,
-					LTTNG_DOMAIN_KERNEL, session);
-			if (ret < 0) {
-				ret = LTTNG_ERR_KERN_CONSUMER_FAIL;
-				goto error;
-			}
-
-			DBG("Rotate channel %" PRIu64 ", session %s", chan->key, session->name);
+			DBG("Rotate kernel channel %" PRIu64 ", session %s",
+					chan->key, session->name);
 			ret = consumer_rotate_channel(socket, chan->key,
 					ksess->uid, ksess->gid, ksess->consumer,
 					ksess->consumer->subdir,
 					/* is_metadata_channel */ false,
-					session->current_archive_id,
-					&session->rotate_pending_relay);
+					session->current_archive_id);
 			if (ret < 0) {
-				ret = LTTNG_ERR_KERN_CONSUMER_FAIL;
+				status = LTTNG_ERR_KERN_CONSUMER_FAIL;
 				goto error;
 			}
 		}
@@ -1469,17 +1449,14 @@ int kernel_rotate_session(struct ltt_session *session)
 				ksess->uid, ksess->gid, ksess->consumer,
 				ksess->consumer->subdir,
 				/* is_metadata_channel */ true,
-				session->current_archive_id,
-				&session->rotate_pending_relay);
+				session->current_archive_id);
 		if (ret < 0) {
-			ret = LTTNG_ERR_KERN_CONSUMER_FAIL;
+			status = LTTNG_ERR_KERN_CONSUMER_FAIL;
 			goto error;
 		}
 	}
 
-	ret = LTTNG_OK;
-
 error:
 	rcu_read_unlock();
-	return ret;
+	return status;
 }