[src/yamt-pagecache]: src/sys/uvm a patch supposed to unbreak abi from christos@

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

details:   https://anonhg.NetBSD.org/src/rev/bd1a3a4b56ae
branches:  yamt-pagecache
changeset: 770828:bd1a3a4b56ae
user:      yamt <yamt%NetBSD.org@localhost>
date:      Sun Nov 13 01:36:25 2011 +0000

description:
a patch supposed to unbreak abi from christos@
PR/45598

diffstat:

 sys/uvm/uvm_meter.c |  6 ++++--
 1 files changed, 4 insertions(+), 2 deletions(-)

diffs (27 lines):

diff -r e977c0033892 -r bd1a3a4b56ae sys/uvm/uvm_meter.c
--- a/sys/uvm/uvm_meter.c       Sun Nov 13 01:18:02 2011 +0000
+++ b/sys/uvm/uvm_meter.c       Sun Nov 13 01:36:25 2011 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: uvm_meter.c,v 1.56.4.2 2011/11/12 02:54:04 yamt Exp $  */
+/*     $NetBSD: uvm_meter.c,v 1.56.4.3 2011/11/13 01:36:25 yamt Exp $  */
 
 /*
  * Copyright (c) 1997 Charles D. Cranor and Washington University.
@@ -36,7 +36,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: uvm_meter.c,v 1.56.4.2 2011/11/12 02:54:04 yamt Exp $");
+__KERNEL_RCSID(0, "$NetBSD: uvm_meter.c,v 1.56.4.3 2011/11/13 01:36:25 yamt Exp $");
 
 #include <sys/param.h>
 #include <sys/systm.h>
@@ -191,6 +191,8 @@
        node = *rnode;
        node.sysctl_data = &u;
        node.sysctl_size = sizeof(u);
+       if (oldp)
+               node.sysctl_size = min(*oldlenp, node.sysctl_size);
        return (sysctl_lookup(SYSCTLFN_CALL(&node)));
 }