merge

1 files changed, 16 insertions, 19 deletions

diff --git a/src/cmd/venti/srv/icache.c b/src/cmd/venti/srv/icache.c
index b1935d42..5875406b 100644
--- a/src/cmd/venti/srv/icache.c
+++ b/src/cmd/venti/srv/icache.c
@@ -250,6 +250,8 @@ scachemiss(u64int addr)
 {
 	ISum *s;
 
+	if(!icacheprefetch)
+		return nil;
 	s = scachelookup(addr);
 	if(s == nil){
 		/* first time: make an entry in the cache but don't populate it yet */
@@ -439,32 +441,27 @@ insertscore(u8int score[VtScoreSize], IAddr *ia, int state, AState *as)
 	return 0;
 }
 
-static int
-lookupscore_untimed(u8int score[VtScoreSize], int type, IAddr *ia)
+int
+lookupscore(u8int score[VtScoreSize], int type, IAddr *ia)
 {
+	int ms, ret;
 	IEntry d;
 
-	if(icachelookup(score, type, ia) >= 0)
+	if(icachelookup(score, type, ia) >= 0){
+		addstat(StatIcacheRead, 1);
 		return 0;
+	}
 
+	ms = msec();
 	addstat(StatIcacheFill, 1);
 	if(loadientry(mainindex, score, type, &d) < 0)
-		return -1;
-	
-	insertscore(score, &d.ia, IEClean, nil);
-	*ia = d.ia;
-	return 0;
-}
-
-int
-lookupscore(u8int score[VtScoreSize], int type, IAddr *ia)
-{
-	int ms, ret;
-	
-	ms = msec();
-	ret = lookupscore_untimed(score, type, ia);
-	ms = msec() - ms;
-	addstat2(StatIcacheRead, 1, StatIcacheReadTime, ms);
+		ret = -1;
+	else{
+		ret = 0;
+		insertscore(score, &d.ia, IEClean, nil);
+		*ia = d.ia;
+	}
+	addstat2(StatIcacheRead, 1, StatIcacheReadTime, msec() - ms);
 	return ret;
 }