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[fio.git] / engines / libaio.c

diff --git a/engines/libaio.c b/engines/libaio.c
index 7c44927a3b8b5a3ac39b37b4eb43ed6760582d87..8f677115056d2e922bda4eaa5f766423db07b6ec 100644 (file)
--- a/engines/libaio.c
+++ b/engines/libaio.c
@@ -11,7 +11,6 @@
 #include <assert.h>
 
 #include "../fio.h"
-#include "../os.h"
 
 #ifdef FIO_HAVE_LIBAIO
 
@@ -87,6 +86,8 @@ static int fio_libaio_queue(struct thread_data *td, struct io_u *io_u)
 {
        struct libaio_data *ld = td->io_ops->data;
 
+       fio_ro_check(td, io_u);
+
        if (ld->iocbs_nr == (int) td->o.iodepth)
                return FIO_Q_BUSY;
 
@@ -190,8 +191,14 @@ static void fio_libaio_cleanup(struct thread_data *td)
 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));
 
        err = io_queue_init(td->o.iodepth, &ld->aio_ctx);