From: Jens Axboe <axboe@fb.com>
Date: Mon, 22 Sep 2014 20:20:05 +0000 (-0600)
Subject: dedupe: if percentage is 100, don't go through random + math
X-Git-Tag: fio-2.1.13~57
X-Git-Url: https://git.kernel.dk/?p=fio.git;a=commitdiff_plain;h=c0b69b92fb155424946b19228da9be0924e9e96c

dedupe: if percentage is 100, don't go through random + math

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

diff --git a/io_u.c b/io_u.c
index af3b4151..eac871bf 100644
--- a/io_u.c
+++ b/io_u.c
@@ -1838,6 +1838,8 @@ static struct frand_state *get_buf_state(struct thread_data *td)
 
 	if (!td->o.dedupe_percentage)
 		return &td->buf_state;
+	else if (td->o.dedupe_percentage == 100)
+		return &td->buf_state_prev;
 
 	r = __rand(&td->dedupe_state);
 	v = 1 + (int) (100.0 * (r / (FRAND_MAX + 1.0)));