From: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Date: Thu, 12 Jan 2012 19:07:56 +0000 (-0500)
Subject: Add a comment about which wait fd is closed early by UST.
X-Git-Tag: v1.9.5~19
X-Git-Url: http://git.lttng.org/?a=commitdiff_plain;ds=sidebyside;h=3ad5f707e8784c29c14bcf46b4b2ea9753679ad2;p=lttng-ust.git

Add a comment about which wait fd is closed early by UST.

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

diff --git a/liblttng-ust/lttng-ust-comm.c b/liblttng-ust/lttng-ust-comm.c
index 516e39d2..798c10a3 100644
--- a/liblttng-ust/lttng-ust-comm.c
+++ b/liblttng-ust/lttng-ust-comm.c
@@ -340,7 +340,9 @@ end:
 	}
 	/*
 	 * We still have the memory map reference, and the fds have been
-	 * sent to the sessiond. We can therefore close those fds.
+	 * sent to the sessiond. We can therefore close those fds. Note
+	 * that we keep the write side of the wait_fd open, but close
+	 * the read side.
 	 */
 	if (lur.ret_code == USTCOMM_OK) {
 		switch (lum->cmd) {