From: Jens Axboe <jens.axboe@oracle.com>
Date: Thu, 1 Mar 2007 09:04:15 +0000 (+0100)
Subject: Fix for file_service_type=random
X-Git-Tag: fio-1.13~16
X-Git-Url: https://git.kernel.dk/?p=fio.git;a=commitdiff_plain;h=7c83c089a9b8bd742f788157ac47a5af363adb19

Fix for file_service_type=random

We need to retrieve a new random offset if the file is closed,
obviously.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
---

diff --git a/io_u.c b/io_u.c
index 978771e1..6df4b5ee 100644
--- a/io_u.c
+++ b/io_u.c
@@ -329,11 +329,12 @@ static void io_u_mark_latency(struct thread_data *td, unsigned long msec)
  */
 static struct fio_file *get_next_file_rand(struct thread_data *td)
 {
-	long r = os_random_long(&td->next_file_state);
 	unsigned int fileno;
 	struct fio_file *f;
 
 	do {
+		long r = os_random_long(&td->next_file_state);
+
 		fileno = (unsigned int) ((double) (td->nr_files - 1) * r / (RAND_MAX + 1.0));
 		f = &td->files[fileno];
 		if (f->fd != -1)