dedup

commit 8a5d9a252075a8eeec32c53f362746e91386ef2b
parent 71a2045de89e6fbe69797470ee4f0110608b0765
Author: sin <sin@2f30.org>
Date:   Fri,  5 Apr 2019 08:26:55 +0100

Check for divzero

Diffstat:
M
dedup.c
 | 
7
++++++-

1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/dedup.c b/dedup.c
@@ -69,8 +69,13 @@ print_stats(struct stats *st)
 	        (unsigned long long)st->max_blk_size);
 	fprintf(stderr, "Number of unique blocks: %llu\n",
 	        (unsigned long long)st->nr_blks);
+
 	icache_stats(icache, &hits, &misses);
-	hitratio = (double)hits / (hits + misses);
+	if (hits == 0 && misses == 0)
+		hitratio = 0;
+	else
+		hitratio = (double)hits / (hits + misses);
+
 	fprintf(stderr, "Index cache hit percentage: %.2f%%\n",
 	        100 * hitratio);
 }