Document switch fall-through cases

[fio.git] / lib / rand.c

diff --git a/lib/rand.c b/lib/rand.c
index 46ffe4fb0c6b9108685254cbe7f110983eb27088..f18bd8d84e9cf021cd49a8df3dc931f47d7f35e2 100644 (file)
--- a/lib/rand.c
+++ b/lib/rand.c
@@ -156,7 +156,7 @@ void __fill_random_buf_percentage(unsigned long seed, void *buf,
                /*
                 * Fill random chunk
                 */
-               this_len = (segment * (100 - percentage)) / 100;
+               this_len = ((unsigned long long)segment * (100 - percentage)) / 100;
                if (this_len > len)
                        this_len = len;
 
@@ -166,6 +166,7 @@ void __fill_random_buf_percentage(unsigned long seed, void *buf,
                if (!len)
                        break;
                buf += this_len;
+               this_len = segment - this_len;
 
                if (this_len > len)
                        this_len = len;