From 143be0a01b9ccaeab0b2eac306ba23feb7aa1873 Mon Sep 17 00:00:00 2001
From: thorpej <thorpej@NetBSD.org>
Date: Sun, 28 Apr 2002 00:53:34 +0000
Subject: [PATCH] Use M_READONLY() rathern than a home-grown M_SHAREDCLUSTER().

---
 sys/kern/uipc_mbuf2.c | 10 +++-------
 1 file changed, 3 insertions(+), 7 deletions(-)

diff --git a/sys/kern/uipc_mbuf2.c b/sys/kern/uipc_mbuf2.c
index 7a4e1981840f..2587eed1f40c 100644
--- a/sys/kern/uipc_mbuf2.c
+++ b/sys/kern/uipc_mbuf2.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: uipc_mbuf2.c,v 1.8 2001/11/12 15:25:31 lukem Exp $	*/
+/*	$NetBSD: uipc_mbuf2.c,v 1.9 2002/04/28 00:53:34 thorpej Exp $	*/
 /*	$KAME: uipc_mbuf2.c,v 1.29 2001/02/14 13:42:10 itojun Exp $	*/
 
 /*
@@ -66,7 +66,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: uipc_mbuf2.c,v 1.8 2001/11/12 15:25:31 lukem Exp $");
+__KERNEL_RCSID(0, "$NetBSD: uipc_mbuf2.c,v 1.9 2002/04/28 00:53:34 thorpej Exp $");
 
 #include <sys/param.h>
 #include <sys/systm.h>
@@ -74,10 +74,6 @@ __KERNEL_RCSID(0, "$NetBSD: uipc_mbuf2.c,v 1.8 2001/11/12 15:25:31 lukem Exp $")
 #include <sys/malloc.h>
 #include <sys/mbuf.h>
 
-#define M_SHAREDCLUSTER(m) \
-	(((m)->m_flags & M_EXT) != 0 && \
-	 ((m)->m_ext.ext_free || MCLISREFERENCED((m))))
-
 /*
  * ensure that [off, off + len) is contiguous on the mbuf chain "m".
  * packet chain before "off" is kept untouched.
@@ -121,7 +117,7 @@ m_pulldown(m, off, len, offp)
 		return NULL;	/* mbuf chain too short */
 	}
 
-	sharedcluster = M_SHAREDCLUSTER(n);
+	sharedcluster = M_READONLY(n);
 
 	/*
 	 * the target data is on <n, off>.