From: Jens Axboe <axboe@suse.de>
Date: Thu, 27 Oct 2005 07:29:37 +0000 (+0200)
Subject: [PATCH] fio: update default random seed
X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=eb39963fd9d088d40eba0be04a3efafb4e9c51b3;p=disktools.git

[PATCH] fio: update default random seed
---

diff --git a/fio.c b/fio.c
index 8e33014..0bc22e8 100644
--- a/fio.c
+++ b/fio.c
@@ -126,6 +126,7 @@ enum {
 #define DEF_CREATE	(1)
 #define DEF_INVALIDATE	(1)
 #define DEF_SYNCIO	(0)
+#define DEF_RANDSEED	(0xb1899bedUL)
 
 #define ALIGN(buf)	(char *) (((unsigned long) (buf) + MASK) & ~(MASK))
 
@@ -294,7 +295,7 @@ static void sig_handler(int sig)
 
 static int init_random_state(struct thread_data *td)
 {
-	unsigned long seed = 123;
+	unsigned long seed;
 
 	if (td->sequential)
 		return 0;
@@ -314,7 +315,8 @@ static int init_random_state(struct thread_data *td)
 		}
 
 		close(fd);
-	}
+	} else
+		seed = DEF_RANDSEED;
 
 	srand48_r(seed, &td->random_state);
 	return 0;