[PATCH] Add thinktime_spin parameter

[fio.git] / engines / libaio.c

diff --git a/engines/libaio.c b/engines/libaio.c
index c95600548c645449a07946b7cabb8c7b6de5162b..c2f47d8bc87aee1b2b76d117c1f8d7c2532ea35a 100644 (file)
--- a/engines/libaio.c
+++ b/engines/libaio.c
@@ -18,6 +18,7 @@
 struct libaio_data {
        io_context_t aio_ctx;
        struct io_event *aio_events;
+       struct io_u *sync_io_u;
 };
 
 static int fio_libaio_prep(struct thread_data fio_unused *td, struct io_u *io_u)
@@ -40,6 +41,13 @@ static struct io_u *fio_libaio_event(struct thread_data *td, int event)
 {
        struct libaio_data *ld = td->io_ops->data;
 
+       if (ld->sync_io_u) {
+               struct io_u *ret = ld->sync_io_u;
+
+               ld->sync_io_u = NULL;
+               return ret;
+       }
+
        return ev_to_iou(ld->aio_events + event);
 }
 
@@ -49,6 +57,9 @@ static int fio_libaio_getevents(struct thread_data *td, int min, int max,
        struct libaio_data *ld = td->io_ops->data;
        long r;
 
+       if (ld->sync_io_u)
+               return 1;
+
        do {
                r = io_getevents(ld->aio_ctx, min, max, ld->aio_events, t);
                if (r >= min)
@@ -77,7 +88,7 @@ static int fio_libaio_queue(struct thread_data *td, struct io_u *io_u)
        do {
                ret = io_submit(ld->aio_ctx, 1, &iocb);
                if (ret == 1)
-                       return 0;
+                       break;
                else if (ret == -EAGAIN || !ret)
                        usleep(100);
                else if (ret == -EINTR)
@@ -90,7 +101,12 @@ static int fio_libaio_queue(struct thread_data *td, struct io_u *io_u)
                         * with libaio (still), we don't have pending
                         * requests to flush first.
                         */
-                       ret = fsync(io_u->file->fd);
+                       if (fsync(io_u->file->fd) < 0)
+                               ret = errno;
+                       else {
+                               ret = 1;
+                               ld->sync_io_u = io_u;
+                       }
                        break;
                } else
                        break;
@@ -99,6 +115,7 @@ static int fio_libaio_queue(struct thread_data *td, struct io_u *io_u)
        if (ret <= 0) {
                io_u->resid = io_u->xfer_buflen;
                io_u->error = -ret;
+               td_verror(td, io_u->error);
                return 1;
        }