X-Git-Url: https://git.kernel.dk/?p=fio.git;a=blobdiff_plain;f=engines%2Fnull.c;h=695afa11af0a1ebeedade04e23c5c6d7c1b1a12a;hp=6db1ad6df82efe5e202592fe4fbbe5b6eb68295d;hb=b2560f3ca4677e2908fc4111f4d04fae5df3b229;hpb=138502a97c7957d9be7599d9fde94b5317e8c24b

diff --git a/engines/null.c b/engines/null.c
index 6db1ad6d..695afa11 100644
--- a/engines/null.c
+++ b/engines/null.c
@@ -18,11 +18,35 @@ static int fio_null_queue(struct thread_data fio_unused *td, struct io_u *io_u)
 	return FIO_Q_COMPLETED;
 }
 
+static int fio_null_setup(struct thread_data *td)
+{
+	struct fio_file *f;
+	int i;
+
+	if (!td->total_file_size) {
+		log_err("fio: need size= set\n");
+		return 1;
+	}
+
+	td->io_size = td->total_file_size;
+	td->total_io_size = td->io_size;
+
+	for_each_file(td, f, i) {
+		f->fd = dup(STDOUT_FILENO);
+		f->real_file_size = td->total_io_size / td->nr_files;
+		f->file_size = f->real_file_size;
+	}
+
+	td->nr_open_files = td->nr_files;
+	return 0;
+}
+
 static struct ioengine_ops ioengine = {
 	.name		= "null",
 	.version	= FIO_IOOPS_VERSION,
+	.setup		= fio_null_setup,
 	.queue		= fio_null_queue,
-	.flags		= FIO_SYNCIO | FIO_NULLIO | FIO_DISKLESSIO,
+	.flags		= FIO_SYNCIO | FIO_DISKLESSIO | FIO_SELFOPEN,
 };
 
 static void fio_init fio_null_register(void)