[src/trunk]: src/sys/rump/librump/rumpvfs PR/50900: David Binderman: optimize...

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

details:   https://anonhg.NetBSD.org/src/rev/754876d38701
branches:  trunk
changeset: 343952:754876d38701
user:      christos <christos%NetBSD.org@localhost>
date:      Sun Mar 06 19:47:41 2016 +0000

description:
PR/50900: David Binderman: optimize memset

diffstat:

 sys/rump/librump/rumpvfs/rumpfs.c |  6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)

diffs (28 lines):

diff -r c002faa4a0cb -r 754876d38701 sys/rump/librump/rumpvfs/rumpfs.c
--- a/sys/rump/librump/rumpvfs/rumpfs.c Sun Mar 06 19:46:05 2016 +0000
+++ b/sys/rump/librump/rumpvfs/rumpfs.c Sun Mar 06 19:47:41 2016 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: rumpfs.c,v 1.138 2016/02/02 13:02:34 pooka Exp $       */
+/*     $NetBSD: rumpfs.c,v 1.139 2016/03/06 19:47:41 christos Exp $    */
 
 /*
  * Copyright (c) 2009, 2010, 2011 Antti Kantee.  All Rights Reserved.
@@ -26,7 +26,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: rumpfs.c,v 1.138 2016/02/02 13:02:34 pooka Exp $");
+__KERNEL_RCSID(0, "$NetBSD: rumpfs.c,v 1.139 2016/03/06 19:47:41 christos Exp $");
 
 #include <sys/param.h>
 #include <sys/atomic.h>
@@ -933,8 +933,8 @@
                        return ENOSPC;
 
                copylen = MIN(rn->rn_dlen, newlen);
-               memset(newdata, 0, newlen);
                memcpy(newdata, rn->rn_data, copylen);
+               memset(newdata + copylen, 0, newlen - copylen);
 
                if ((rn->rn_flags & RUMPNODE_EXTSTORAGE) == 0) {
                        rump_hyperfree(rn->rn_data, rn->rn_dlen);