PERFORCE change 133460 for review

[Kip Macy]

http://perforce.freebsd.org/chv.cgi?CH=133460

Change 133460 by kmacy at pandemonium:kmacy:xen31 on 2008/01/17 06:37:47

	fix pmap_release to release the pdpt rather than releasing 
	the first page in the pdir twice

Affected files ...

.. //depot/projects/xen31/sys/i386/xen/pmap.c#21 edit

Differences ...

==== //depot/projects/xen31/sys/i386/xen/pmap.c#21 (text+ko) ====

@@ -1692,7 +1692,12 @@
 {
 	vm_page_t m, ptdpg[NPGPTD+1];
 	vm_paddr_t ma;
-	int i, npgptd = NPGPTD + 1;
+	int i;
+#ifdef PAE	
+	int npgptd = NPGPTD + 1;
+#else
+	int npgptd = NPGPTD;
+#endif
 
 	KASSERT(pmap->pm_stats.resident_count == 0,
 	    ("pmap_release: pmap resident count %ld != 0",
@@ -1705,8 +1710,10 @@
 
 	for (i = 0; i < NPGPTD; i++)
 		ptdpg[i] = PHYS_TO_VM_PAGE(PT_GET(&pmap->pm_pdir[PTDPTDI + i]) & PG_FRAME);
-
-	ptdpg[NPGPTD] = PHYS_TO_VM_PAGE(vtophys(pmap->pm_pdir));
+	
+#ifdef PAE
+	ptdpg[NPGPTD] = PHYS_TO_VM_PAGE(vtophys(pmap->pm_pdpt));
+#endif	
 	for (i = 0; i < nkpt + NPGPTD; i++) 
 		PD_CLEAR_VA(pmap, PTDPTDI + i, FALSE);