Module Name: src
Committed By: yamt
Date: Wed Apr 18 13:44:19 UTC 2012
Modified Files:
src/sys/kern: kern_synch.c
Log Message:
comment
To generate a diff of this commit:
cvs rdiff -u -r1.299 -r1.300 src/sys/kern/kern_synch.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/kern/kern_synch.c
diff -u src/sys/kern/kern_synch.c:1.299 src/sys/kern/kern_synch.c:1.300
--- src/sys/kern/kern_synch.c:1.299 Sat Mar 3 00:22:24 2012
+++ src/sys/kern/kern_synch.c Wed Apr 18 13:44:19 2012
@@ -1,4 +1,4 @@
-/* $NetBSD: kern_synch.c,v 1.299 2012/03/03 00:22:24 matt Exp $ */
+/* $NetBSD: kern_synch.c,v 1.300 2012/04/18 13:44:19 yamt Exp $ */
/*-
* Copyright (c) 1999, 2000, 2004, 2006, 2007, 2008, 2009
@@ -69,7 +69,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: kern_synch.c,v 1.299 2012/03/03 00:22:24 matt Exp $");
+__KERNEL_RCSID(0, "$NetBSD: kern_synch.c,v 1.300 2012/04/18 13:44:19 yamt Exp $");
#include "opt_kstack.h"
#include "opt_perfctrs.h"
@@ -755,6 +755,10 @@ mi_switch(lwp_t *l)
KASSERT(l->l_cpu == ci);
splx(oldspl);
+ /*
+ * note that, unless the caller disabled preemption,
+ * we can be preempted at any time after the above splx() call.
+ */
retval = 1;
} else {
/* Nothing to do - just unlock and return. */
