X-Git-Url: https://git.kernel.dk/?a=blobdiff_plain;f=init.c;h=a50362674e21902b30cd1519146e29c59a6ba48b;hb=d9d91e39df9cdc02d17c7b6831e2408ed1faa432;hp=c56a3c0bb50a095588f0d09696f8e5d8e02a1005;hpb=64d04e4ee255be69b491907cdba183e6b09e9164;p=fio.git

diff --git a/init.c b/init.c
index c56a3c0b..a5036267 100644
--- a/init.c
+++ b/init.c
@@ -293,6 +293,9 @@ static int fixup_options(struct thread_data *td)
 		o->time_based = 0;
 	}
 
+	if (o->fill_device && !o->size)
+		o->size = ULONG_LONG_MAX;
+
 	return 0;
 }
 
@@ -751,9 +754,10 @@ static int setup_thread_area(void)
 	return 0;
 }
 
-static void usage(void)
+static void usage(const char *name)
 {
 	printf("%s\n", fio_version_string);
+	printf("%s [options] [job options] <job file(s)>\n", name);
 	printf("\t--output\tWrite output to file\n");
 	printf("\t--timeout\tRuntime in seconds\n");
 	printf("\t--latency-log\tGenerate per-job latency logs\n");
@@ -795,7 +799,7 @@ static int parse_cmd_line(int argc, char *argv[])
 			terse_output = 1;
 			break;
 		case 'h':
-			usage();
+			usage(argv[0]);
 			exit(0);
 		case 'c':
 			exit(fio_show_option_help(optarg));
@@ -901,6 +905,7 @@ int parse_options(int argc, char *argv[])
 			return 0;
 
 		log_err("No jobs defined(s)\n");
+		usage(argv[0]);
 		return 1;
 	}