X-Git-Url: https://git.kernel.dk/?p=fio.git;a=blobdiff_plain;f=filesetup.c;h=210cd2ff7ed437a1f19414a82e20600486cdfbc5;hp=a7dff0fc5bed83fc5e6506f1402adc7598abf42f;hb=aa31f1f108348ba2a8749c73fa8c25f3d4630a7c;hpb=8f9cc4a9928d057945becd351c858c3433934465

diff --git a/filesetup.c b/filesetup.c
index a7dff0fc..210cd2ff 100644
--- a/filesetup.c
+++ b/filesetup.c
@@ -380,7 +380,7 @@ int setup_files(struct thread_data *td)
 	 * device/file sizes are zero and no size given, punt
 	 */
 	if ((!total_size || total_size == -1ULL) && !td->o.size &&
-	    !(td->io_ops->flags & FIO_NOIO)) {
+	    !(td->io_ops->flags & FIO_NOIO) && !td->o.fill_device) {
 		log_err("%s: you need to specify size=\n", td->o.name);
 		td_verror(td, EINVAL, "total_file_size");
 		return 1;