From e3f22193edcac55ca5a946bba081f0ee43e568ed Mon Sep 17 00:00:00 2001
From: David du Colombier <0intro@gmail.com>
Date: Fri, 7 May 1993 00:00:00 +0000
Subject: [PATCH] Plan 9 from Bell Labs 1993-05-07

---
 port/segment.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/port/segment.c b/port/segment.c
index bc16614a6177333c9b2b489254ce77a6902d138f..a4f44276b8b1494033a419eb99df8a8f17be513e 100644
--- a/port/segment.c
+++ b/port/segment.c
@@ -87,6 +87,7 @@ putseg(Segment *s)
 void
 relocateseg(Segment *s, ulong offset)
 {
+	int i;
 	Pte **p, **endpte;
 	Page **pg, **endpages;
 
@@ -95,8 +96,11 @@ relocateseg(Segment *s, ulong offset)
 		if(*p) {
 			endpages = &((*p)->pages[PTEPERTAB]);
 			for(pg = (*p)->pages; pg < endpages; pg++)
-				if(*pg)
+				if(*pg){
 					(*pg)->va += offset;
+					for(i = 0; i < MAXMACH; i++)
+						(*pg)->cachectl[i] |= PG_DATINVALID;
+				}
 		}
 	}
 }