From: Jens Axboe <axboe@kernel.dk>
Date: Thu, 8 Nov 2012 07:36:00 +0000 (+0100)
Subject: Zipf theta must be different than 1.0
X-Git-Tag: fio-2.0.11~22
X-Git-Url: https://git.kernel.dk/?p=fio.git;a=commitdiff_plain;h=18ded917799ea71ff950360fab7eebebe3c2f406

Zipf theta must be different than 1.0

Signed-off-by: Jens Axboe <axboe@kernel.dk>
---

diff --git a/options.c b/options.c
index c240692f..ae859882 100644
--- a/options.c
+++ b/options.c
@@ -750,9 +750,13 @@ static int str_random_distribution_cb(void *data, const char *str)
 
 	free(nr);
 
-	if (td->o.random_distribution == FIO_RAND_DIST_ZIPF)
+	if (td->o.random_distribution == FIO_RAND_DIST_ZIPF) {
+		if (val == 1.00) {
+			log_err("fio: zipf theta must different than 1.0\n");
+			return 1;
+		}
 		td->o.zipf_theta = val;
-	else {
+	} else {
 		if (val <= 0.00 || val >= 1.00) {
 			log_err("fio: pareto input out of range (0 < input < 1.0)\n");
 			return 1;
diff --git a/t/genzipf.c b/t/genzipf.c
index dfb89929..e625defc 100644
--- a/t/genzipf.c
+++ b/t/genzipf.c
@@ -141,6 +141,10 @@ int main(int argc, char *argv[])
 		printf("pareto input must be > 0.00 and < 1.00\n");
 		return 1;
 	}
+	if (val == 1.0 && use_zipf) {
+		printf("zipf input must be different than 1.0\n");
+		return 1;
+	}
 
 	nranges = DEF_NR;
 	output_nranges = DEF_NR_OUTPUT;