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From: Kip Macy <kmacy@FreeBSD.org>
To: Perforce Change Reviews <perforce@freebsd.org>
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Subject: PERFORCE change 97666 for review
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http://perforce.freebsd.org/chv.cgi?CH=97666

Change 97666 by kmacy@kmacy_storage:sun4v_work on 2006/05/23 05:47:43

	don't remove the referenced bit in pmap_protect
	only invalidate range if there is a modified page

Affected files ...

.. //depot/projects/kmacy_sun4v/src/sys/sun4v/sun4v/pmap.c#57 edit

Differences ...

==== //depot/projects/kmacy_sun4v/src/sys/sun4v/sun4v/pmap.c#57 (text+ko) ====

@@ -1491,12 +1491,12 @@
 		vm_page_t m;
 
 		if ((otte_data = tte_hash_clear_bits(pmap->pm_hash, tva, 
-						     (VTD_SW_W|VTD_W|VTD_REF))) == 0)
+						     (VTD_SW_W|VTD_W))) == 0)
 			continue;
 
-		if (otte_data & (VTD_SW_W | VTD_W | VTD_REF)) 
+		if (!anychanged && (otte_data & VTD_W))
 			anychanged = 1;
-
+		
 		if (otte_data & VTD_MANAGED) {
 			m = NULL;