#include <assert.h>
#include "../fio.h"
-#include "../os.h"
#ifdef FIO_HAVE_LIBAIO
static int fio_libaio_init(struct thread_data *td)
{
struct libaio_data *ld = malloc(sizeof(*ld));
+ static int warn_print;
+ int err;
+
+ if (td->o.iodepth > 1 && !td->o.odirect && !warn_print) {
+ log_info("fio: libaio engine is only async for non-buffered IO\n");
+ warn_print = 1;
+ }
memset(ld, 0, sizeof(*ld));
- if (io_queue_init(td->o.iodepth, &ld->aio_ctx)) {
- td_verror(td, errno, "io_queue_init");
+
+ err = io_queue_init(td->o.iodepth, &ld->aio_ctx);
+ if (err) {
+ td_verror(td, -err, "io_queue_init");
free(ld);
return 1;
}