[src/trunk]: src/lib/librumpuser Apparently MAP_ANON mmap() on Linux requires...

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

details:   https://anonhg.NetBSD.org/src/rev/fd191962caf6
branches:  trunk
changeset: 783284:fd191962caf6
user:      pooka <pooka%NetBSD.org@localhost>
date:      Thu Dec 13 15:35:09 2012 +0000

description:
Apparently MAP_ANON mmap() on Linux requires MAP_PRIVATE to be specified
for the addr parameter to have a sane effect.  Make it so.

diffstat:

 lib/librumpuser/rumpuser.c |  6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)

diffs (27 lines):

diff -r 4f5151c7e7f6 -r fd191962caf6 lib/librumpuser/rumpuser.c
--- a/lib/librumpuser/rumpuser.c        Thu Dec 13 15:16:57 2012 +0000
+++ b/lib/librumpuser/rumpuser.c        Thu Dec 13 15:35:09 2012 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: rumpuser.c,v 1.23 2012/11/18 19:29:40 pooka Exp $      */
+/*     $NetBSD: rumpuser.c,v 1.24 2012/12/13 15:35:09 pooka Exp $      */
 
 /*
  * Copyright (c) 2007-2010 Antti Kantee.  All Rights Reserved.
@@ -28,7 +28,7 @@
 #include "rumpuser_port.h"
 
 #if !defined(lint)
-__RCSID("$NetBSD: rumpuser.c,v 1.23 2012/11/18 19:29:40 pooka Exp $");
+__RCSID("$NetBSD: rumpuser.c,v 1.24 2012/12/13 15:35:09 pooka Exp $");
 #endif /* !lint */
 
 #include <sys/ioctl.h>
@@ -261,7 +261,7 @@
        if (exec)
                prot |= PROT_EXEC;
        rv = mmap(prefaddr, size, prot,
-           MAP_ANON | MAP_ALIGNED(alignbit), -1, 0);
+           MAP_PRIVATE | MAP_ANON | MAP_ALIGNED(alignbit), -1, 0);
        if (rv == MAP_FAILED) {
                seterror(errno);
                return NULL;