[src/trunk]: src/sys/rump/librump/rumpkern comment

[yamt <yamt%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/58354f44ba71
branches:  trunk
changeset: 770738:58354f44ba71
user:      yamt <yamt%NetBSD.org@localhost>
date:      Mon Oct 31 13:17:22 2011 +0000

description:
comment

diffstat:

 sys/rump/librump/rumpkern/scheduler.c |  8 ++++++--
 1 files changed, 6 insertions(+), 2 deletions(-)

diffs (29 lines):

diff -r c96e262df14b -r 58354f44ba71 sys/rump/librump/rumpkern/scheduler.c
--- a/sys/rump/librump/rumpkern/scheduler.c     Mon Oct 31 13:16:01 2011 +0000
+++ b/sys/rump/librump/rumpkern/scheduler.c     Mon Oct 31 13:17:22 2011 +0000
@@ -1,4 +1,4 @@
-/*      $NetBSD: scheduler.c,v 1.26 2011/03/21 16:41:09 pooka Exp $    */
+/*      $NetBSD: scheduler.c,v 1.27 2011/10/31 13:17:22 yamt Exp $     */
 
 /*
  * Copyright (c) 2010, 2011 Antti Kantee.  All Rights Reserved.
@@ -26,7 +26,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: scheduler.c,v 1.26 2011/03/21 16:41:09 pooka Exp $");
+__KERNEL_RCSID(0, "$NetBSD: scheduler.c,v 1.27 2011/10/31 13:17:22 yamt Exp $");
 
 #include <sys/param.h>
 #include <sys/atomic.h>
@@ -219,6 +219,10 @@
        rumpuser_mutex_exit(lwp0mtx);
 }
 
+/*
+ * rump_schedule: ensure that the calling host thread has a valid lwp context.
+ * ie. ensure that rumpuser_get_curlwp() != NULL.
+ */
 void
 rump_schedule()
 {