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This loop makes no sense at all.

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This commit is contained in:
maxv 2016-07-19 18:54:45 +00:00
parent 53697fe783
commit 5769e840ca
1 changed files with 5 additions and 5 deletions
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10
sys/arch/x86/x86/pmap.c
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@ -1,4 +1,4 @@
/* $NetBSD: pmap.c,v 1.211 2016/07/11 14:18:16 maxv Exp $ */
/* $NetBSD: pmap.c,v 1.212 2016/07/19 18:54:45 maxv Exp $ */
/*-
* Copyright (c) 2008, 2010, 2016 The NetBSD Foundation, Inc.
@ -171,7 +171,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: pmap.c,v 1.211 2016/07/11 14:18:16 maxv Exp $");
__KERNEL_RCSID(0, "$NetBSD: pmap.c,v 1.212 2016/07/19 18:54:45 maxv Exp $");
#include "opt_user_ldt.h"
#include "opt_lockdebug.h"
@ -3910,7 +3910,7 @@ pmap_write_protect(struct pmap *pmap, vaddr_t sva, vaddr_t eva, vm_prot_t prot)
kpreempt_disable();
pmap_map_ptes(pmap, &pmap2, &ptes, &pdes);
for (va = sva ; va < eva ; va = blockend) {
for (va = sva ; va < eva; va = blockend) {
pt_entry_t *spte, *epte;
int i;
@ -3926,8 +3926,8 @@ pmap_write_protect(struct pmap *pmap, vaddr_t sva, vaddr_t eva, vm_prot_t prot)
* with APTE). then we can set VM_MAXUSER_ADDRESS to
* be VM_MAX_ADDRESS.
*/
/* XXXCDC: ugly hack to avoid freeing PDP here */
/* XXX: this loop makes no sense at all */
for (i = 0; i < PDP_SIZE; i++) {
if (pl_i(va, PTP_LEVELS) == PDIR_SLOT_PTE+i)
continue;
@ -3942,7 +3942,7 @@ pmap_write_protect(struct pmap *pmap, vaddr_t sva, vaddr_t eva, vm_prot_t prot)
spte = &ptes[pl1_i(va)];
epte = &ptes[pl1_i(blockend)];
for (/*null */; spte < epte ; spte++) {
for (/* */; spte < epte; spte++) {
pt_entry_t opte, npte;
do {