[src/trunk]: src/sys/uvm Use UVM_PROT_RW instead of UVM_PROT_ALL. This doesn'...

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

details:   https://anonhg.NetBSD.org/src/rev/bd377f35a2d5
branches:  trunk
changeset: 359422:bd377f35a2d5
user:      maxv <maxv%NetBSD.org@localhost>
date:      Fri Feb 09 09:07:13 2018 +0000

description:
Use UVM_PROT_RW instead of UVM_PROT_ALL. This doesn't change anything,
since the protection code is not applied: the pages are manually kentered
as RW.

But fix it anyway, so that "pmap 0" does not say the map is executable.

diffstat:

 sys/uvm/uvm_bio.c |  6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)

diffs (27 lines):

diff -r 88f5ea385646 -r bd377f35a2d5 sys/uvm/uvm_bio.c
--- a/sys/uvm/uvm_bio.c Fri Feb 09 08:58:01 2018 +0000
+++ b/sys/uvm/uvm_bio.c Fri Feb 09 09:07:13 2018 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: uvm_bio.c,v 1.91 2017/10/28 00:37:13 pgoyette Exp $    */
+/*     $NetBSD: uvm_bio.c,v 1.92 2018/02/09 09:07:13 maxv Exp $        */
 
 /*
  * Copyright (c) 1998 Chuck Silvers.
@@ -34,7 +34,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: uvm_bio.c,v 1.91 2017/10/28 00:37:13 pgoyette Exp $");
+__KERNEL_RCSID(0, "$NetBSD: uvm_bio.c,v 1.92 2018/02/09 09:07:13 maxv Exp $");
 
 #include "opt_uvmhist.h"
 #include "opt_ubc.h"
@@ -205,7 +205,7 @@
 
        if (uvm_map(kernel_map, (vaddr_t *)&ubc_object.kva,
                    ubc_nwins << ubc_winshift, &ubc_object.uobj, 0, (vsize_t)va,
-                   UVM_MAPFLAG(UVM_PROT_ALL, UVM_PROT_ALL, UVM_INH_NONE,
+                   UVM_MAPFLAG(UVM_PROT_RW, UVM_PROT_RW, UVM_INH_NONE,
                                UVM_ADV_RANDOM, UVM_FLAG_NOMERGE)) != 0) {
                panic("ubc_init: failed to map ubc_object");
        }