From: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Date: Sun, 22 May 2011 14:04:47 +0000 (-0400)
Subject: Comment buffer creation behavior wrt packet headers
X-Git-Tag: v2.0-pre1~120
X-Git-Url: http://git.liburcu.org/?a=commitdiff_plain;h=125b4df47b59943f8ad4f4936c1deddbdd0d008e;p=lttng-modules.git

Comment buffer creation behavior wrt packet headers

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
---

diff --git a/ltt-events.c b/ltt-events.c
index 46da1591..17d87095 100644
--- a/ltt-events.c
+++ b/ltt-events.c
@@ -170,6 +170,11 @@ struct ltt_channel *ltt_channel_create(struct ltt_session *session,
 	chan->session = session;
 	init_waitqueue_head(&chan->notify_wait);
 	chan->id = session->free_chan_id++;
+	/*
+	 * Note: the channel creation op already writes into the packet
+	 * headers. Therefore the "chan" information used as input
+	 * should be already accessible.
+	 */
 	chan->chan = transport->ops.channel_create("[lttng]", chan, buf_addr,
 			subbuf_size, num_subbuf, switch_timer_interval,
 			read_timer_interval);