From: Peter Oberparleiter <oberpar@linux.vnet.ibm.com>
Date: Fri, 28 Feb 2014 17:09:13 +0000 (-0800)
Subject: fio: fix last block never being touched by random offsets
X-Git-Tag: fio-2.1.6~6
X-Git-Url: https://git.kernel.dk/?p=fio.git;a=commitdiff_plain;h=80e88a1d4a84cb243a84a950363c0bce8f73d300

fio: fix last block never being touched by random offsets

Fix the available range for random offsets which never touched the last block.

Signed-off-by: Christian Ehrhardt <ehrhardt@linux.vnet.ibm.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
---

diff --git a/io_u.c b/io_u.c
index 77557dfd..75b23eb4 100644
--- a/io_u.c
+++ b/io_u.c
@@ -104,7 +104,7 @@ static int __get_next_rand_offset(struct thread_data *td, struct fio_file *f,
 
 		dprint(FD_RANDOM, "off rand %llu\n", (unsigned long long) r);
 
-		*b = (lastb - 1) * (r / ((uint64_t) rmax + 1.0));
+		*b = lastb * (r / ((uint64_t) rmax + 1.0));
 	} else {
 		uint64_t off = 0;