From 22edb6d4899c647cfd33c13092d55c0904e90f0a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?P=C5=99emysl=20Janouch?= <p.janouch@gmail.com>
Date: Sat, 6 May 2017 21:09:04 +0200
Subject: Add a warning comment to "poller_fd::closed"

---
 liberty.c | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'liberty.c')

diff --git a/liberty.c b/liberty.c
index 9848c1b..b59cde7 100644
--- a/liberty.c
+++ b/liberty.c
@@ -1326,6 +1326,9 @@ struct poller_fd
 
 	int fd;                             ///< Our file descriptor
 	short events;                       ///< The poll() events we registered for
+
+	// Make triple sure that no forked child is keeping the FD,
+	// otherwise we may access freed memory on Linux (poor epoll design)
 	bool closed;                        ///< Whether fd has been closed already
 
 	poller_fd_fn dispatcher;            ///< Event dispatcher
-- 
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