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Simplify pmap_protect().

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alc 2004-07-13 06:54:23 +00:00
parent b4f778e20c
commit ea85f85ed9
1 changed files with 3 additions and 6 deletions
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9
sys/ia64/ia64/pmap.c
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@ -1444,18 +1444,15 @@ pmap_protect(pmap_t pmap, vm_offset_t sva, vm_offset_t eva, vm_prot_t prot)
if (pmap == NULL)
return;
oldpmap = pmap_install(pmap);
if ((prot & VM_PROT_READ) == VM_PROT_NONE) {
pmap_remove(pmap, sva, eva);
pmap_install(oldpmap);
return;
}
if (prot & VM_PROT_WRITE) {
pmap_install(oldpmap);
if (prot & VM_PROT_WRITE)
return;
}
oldpmap = pmap_install(pmap);
newprot = pte_prot(pmap, prot);