X-Git-Url: http://git.lttng.org/?a=blobdiff_plain;f=lttng-abi.c;h=87465189060edd4122cc9f8c5ad87c3fe218b6f1;hb=96c55c2f6b20fd742b3ea2aa291c28e140df82d8;hp=c14cc82b2baca8aa6e2012a6f46d8079fa58f2ec;hpb=1d84e8e7060f36b78cacc7a32d8e30522d62e90b;p=lttng-modules.git

diff --git a/lttng-abi.c b/lttng-abi.c
index c14cc82b..87465189 100644
--- a/lttng-abi.c
+++ b/lttng-abi.c
@@ -757,6 +757,27 @@ long lttng_metadata_ring_buffer_compat_ioctl(struct file *filp,
 		 */
 		return -ENOSYS;
 	}
+	case RING_BUFFER_FLUSH:
+	{
+		struct lttng_metadata_stream *stream = filp->private_data;
+		struct lib_ring_buffer *buf = stream->priv;
+		struct channel *chan = buf->backend.chan;
+
+		/*
+		 * Before doing the actual ring buffer flush, write up to one
+		 * packet of metadata in the ring buffer.
+		 */
+		ret = lttng_metadata_output_channel(stream, chan);
+		if (ret < 0)
+			goto err;
+		break;
+	}
+	case RING_BUFFER_GET_METADATA_VERSION:
+	{
+		struct lttng_metadata_stream *stream = filp->private_data;
+
+		return put_u64(stream->version, arg);
+	}
 	default:
 		break;
 	}
@@ -774,12 +795,6 @@ long lttng_metadata_ring_buffer_compat_ioctl(struct file *filp,
 				cmd, arg);
 		break;
 	}
-	case RING_BUFFER_GET_METADATA_VERSION:
-	{
-		struct lttng_metadata_stream *stream = filp->private_data;
-
-		return put_u64(stream->version, arg);
-	}
 	default:
 		break;
 	}