From fdfe9f6a2a27d10c4c94e29ee62c26061c9761a0 Mon Sep 17 00:00:00 2001
From: jdybnis <jdybnis@9ec2166a-aeea-11dd-8830-69e4bb380a4a>
Date: Wed, 26 Nov 2008 07:20:00 +0000
Subject: [PATCH 1/1] minor change

---
 struct/skiplist.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/struct/skiplist.c b/struct/skiplist.c
index f7cdf33..aa283fb 100644
--- a/struct/skiplist.c
+++ b/struct/skiplist.c
@@ -40,13 +40,12 @@ struct sl {
 
 static int random_level (void) {
     unsigned r = nbd_rand();
-    if (r&1)
+    if (r & 1)
         return 0;
-    int n = __builtin_ctz(r)-1;
 #if MAX_LEVEL < 31
-    if (n > MAX_LEVEL)
-        return MAX_LEVEL;
+    r |= 1 << (MAX_LEVEL+1);
 #endif
+    int n = __builtin_ctz(r)-1;
     assert(n <= MAX_LEVEL);
     return n;
 }
-- 
2.40.0