From: Jens Axboe <axboe@kernel.dk>
Date: Sat, 7 Dec 2019 05:03:04 +0000 (-0700)
Subject: filesetup: ensure to setup random generator properly
X-Git-Tag: fio-3.17~11
X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=fd9882facefa0f5b09c09d2bc5cb3a2b6eabda1a;p=fio.git

filesetup: ensure to setup random generator properly

If we have ZONED or ZONED_ABS set, we need to go through the same
path as RANDOM. If not, we fail miserably later.

Fixes: https://github.com/axboe/fio/issues/873
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---

diff --git a/filesetup.c b/filesetup.c
index 7fe2ebd4..ed3646a4 100644
--- a/filesetup.c
+++ b/filesetup.c
@@ -1287,7 +1287,9 @@ static bool init_rand_distribution(struct thread_data *td)
 	unsigned int i;
 	int state;
 
-	if (td->o.random_distribution == FIO_RAND_DIST_RANDOM)
+	if (td->o.random_distribution == FIO_RAND_DIST_RANDOM ||
+	    td->o.random_distribution == FIO_RAND_DIST_ZONED ||
+	    td->o.random_distribution == FIO_RAND_DIST_ZONED_ABS)
 		return false;
 
 	state = td_bump_runstate(td, TD_SETTING_UP);