From 8b6587f4c5a735761c14aa7b4376387d62b58ec9 Mon Sep 17 00:00:00 2001
From: Alan Cox <alc@FreeBSD.org>
Date: Wed, 14 Jul 2004 03:05:19 +0000
Subject: [PATCH] In pmap_remove_pages(), when clearing a pte, update the
 corresponding page's dirty mask.

Reviewed by:	gallatin@
---
 sys/alpha/alpha/pmap.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/sys/alpha/alpha/pmap.c b/sys/alpha/alpha/pmap.c
index c8624cd75b5..45ab2dde287 100644
--- a/sys/alpha/alpha/pmap.c
+++ b/sys/alpha/alpha/pmap.c
@@ -2227,6 +2227,10 @@ pmap_remove_pages(pmap, sva, eva)
 
 		pv->pv_pmap->pm_stats.resident_count--;
 
+		if ((tpte & PG_FOW) == 0)
+			if (pmap_track_modified(pv->pv_va))
+				vm_page_dirty(m);
+
 		npv = TAILQ_NEXT(pv, pv_plist);
 		TAILQ_REMOVE(&pv->pv_pmap->pm_pvlist, pv, pv_plist);