int kernel_open_metadata_stream(struct ltt_kernel_session *session);
int kernel_open_channel_stream(struct ltt_kernel_channel *channel);
int kernel_flush_buffer(struct ltt_kernel_channel *channel);
int kernel_open_metadata_stream(struct ltt_kernel_session *session);
int kernel_open_channel_stream(struct ltt_kernel_channel *channel);
int kernel_flush_buffer(struct ltt_kernel_channel *channel);