From d655a64b5b848342d9c5f5ba314a5d38c3ea1772 Mon Sep 17 00:00:00 2001
From: Andrew Tridgell <tridge@samba.org>
Date: Mon, 14 May 2007 13:49:01 +1000
Subject: [PATCH] kill the lockwait child if the pipe goes away (This used to
 be ctdb commit bdfa8ba9932fade074a05a6cb6bc14ae3b84618c)

---
 ctdb/common/ctdb_lockwait.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/ctdb/common/ctdb_lockwait.c b/ctdb/common/ctdb_lockwait.c
index 470d89d1199..22cff9d6b54 100644
--- a/ctdb/common/ctdb_lockwait.c
+++ b/ctdb/common/ctdb_lockwait.c
@@ -131,7 +131,9 @@ struct lockwait_handle *ctdb_lockwait(struct ctdb_db_context *ctdb_db,
 		close(result->fd[0]);
 		tdb_chainlock(ctdb_db->ltdb->tdb, key);
 		write(result->fd[1], &c, 1);
-		pause();
+		/* this read will exit when the parent closes its end
+		   of the pipe, or the parent dies */
+		read(result->fd[1], &c, 1);
 		_exit(0);
 	}