From: jdybnis <jdybnis@9ec2166a-aeea-11dd-8830-69e4bb380a4a>
Date: Wed, 26 Nov 2008 07:20:00 +0000 (+0000)
Subject: minor change
X-Git-Url: https://pd.if.org/git/?p=nbds;a=commitdiff_plain;h=fdfe9f6a2a27d10c4c94e29ee62c26061c9761a0

minor change
---

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;
 }