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Fix locking problem.

This commit is contained in:
eeh 2001-09-15 07:12:22 +00:00
parent a7283de29c
commit 984030b0ca
1 changed files with 2 additions and 2 deletions
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4
sys/arch/sparc64/sparc64/pmap.c
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@ -1,4 +1,4 @@
/* $NetBSD: pmap.c,v 1.108 2001/09/10 21:19:26 chris Exp $ */
/* $NetBSD: pmap.c,v 1.109 2001/09/15 07:12:22 eeh Exp $ */
#undef NO_VCACHE /* Don't forget the locked TLB in dostart */
#define HWREF
/*
@ -3244,7 +3244,6 @@ pmap_page_protect(pg, prot)
firstpv = pv = pa_to_pvh(pa);
s = splvm();
if (firstpv->pv_pmap) simple_lock(&firstpv->pv_pmap->pm_lock);
/* First remove the entire list of continuation pv's*/
for (npv = pv->pv_next; npv; npv = pv->pv_next) {
@ -3313,6 +3312,7 @@ pmap_page_protect(pg, prot)
}
#endif
if (pv->pv_pmap != NULL) {
simple_lock(&pv->pv_pmap->pm_lock);
#ifdef DEBUG
if (pmapdebug & (PDB_CHANGEPROT|PDB_REF|PDB_REMOVE)) {
printf("pmap_page_protect: demap va %p of pa %lx from pm %p...\n",