From e5a8a1974789ed60e7f9cb2ed8d3a30aee47d991 Mon Sep 17 00:00:00 2001
From: Hasso Tepper <hasso@dragonflybsd.org>
Date: Thu, 28 Aug 2008 08:42:29 +0000
Subject: [PATCH] Add STAILQ_FOREACH_MUTABLE.

---
 sys/sys/queue.h | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/sys/sys/queue.h b/sys/sys/queue.h
index a7b3962b82..c9761ceb2d 100644
--- a/sys/sys/queue.h
+++ b/sys/sys/queue.h
@@ -32,7 +32,7 @@
  *
  *	@(#)queue.h	8.5 (Berkeley) 8/20/94
  * $FreeBSD: src/sys/sys/queue.h,v 1.32.2.7 2002/04/17 14:21:02 des Exp $
- * $DragonFly: src/sys/sys/queue.h,v 1.10 2008/07/23 17:22:33 dillon Exp $
+ * $DragonFly: src/sys/sys/queue.h,v 1.11 2008/08/28 08:42:29 hasso Exp $
  */
 
 #ifndef _SYS_QUEUE_H_
@@ -103,7 +103,7 @@
  * _PREV		-	-	-	+	+
  * _LAST		-	-	+	+	+
  * _FOREACH		+	+	+	+	+
- * _FOREACH_MUTABLE	-	+	-	+	-
+ * _FOREACH_MUTABLE	-	+	+	+	-
  * _FOREACH_REVERSE	-	-	-	+	+
  * _INSERT_HEAD		+	+	+	+	+
  * _INSERT_BEFORE	-	+	-	+	+
@@ -215,6 +215,11 @@ struct {								\
 	   (var);							\
 	   (var) = STAILQ_NEXT((var), field))
 
+#define STAILQ_FOREACH_MUTABLE(var, head, field, tvar)			\
+	for ((var) = STAILQ_FIRST((head));				\
+	    (var) && ((tvar) = STAILQ_NEXT((var), field), 1);		\
+	    (var) = (tvar))
+
 #define	STAILQ_INIT(head) do {						\
 	STAILQ_FIRST((head)) = NULL;					\
 	(head)->stqh_last = &STAILQ_FIRST((head));			\
-- 
2.11.4.GIT