posixaio: fix for HP-UX

[fio.git] / engines / posixaio.c

diff --git a/engines/posixaio.c b/engines/posixaio.c
index f27ad8ce0a3230d128ad1d555d415c1727d4116d..e315e972b73df4d085f220fb54ed4bc276083de9 100644 (file)
--- a/engines/posixaio.c
+++ b/engines/posixaio.c
@@ -72,6 +72,7 @@ static int fio_posixaio_prep(struct thread_data fio_unused *td,
        aiocb->aio_buf = io_u->xfer_buf;
        aiocb->aio_nbytes = io_u->xfer_buflen;
        aiocb->aio_offset = io_u->offset;
+       aiocb->aio_sigevent.sigev_notify = SIGEV_NONE;
 
        io_u->seen = 0;
        return 0;
@@ -152,7 +153,7 @@ static struct io_u *fio_posixaio_event(struct thread_data *td, int event)
        return pd->aio_events[event];
 }
 
-static int fio_posixaio_queue(struct thread_data fio_unused *td,
+static int fio_posixaio_queue(struct thread_data *td,
                              struct io_u *io_u)
 {
        struct posixaio_data *pd = td->io_ops->data;
@@ -184,6 +185,15 @@ static int fio_posixaio_queue(struct thread_data fio_unused *td,
        }
                
        if (ret) {
+               /*
+                * At least OSX has a very low limit on the number of pending
+                * IOs, so if it returns EAGAIN, we are out of resources
+                * to queue more. Just return FIO_Q_BUSY to naturally
+                * drop off at this depth.
+                */
+               if (errno == EAGAIN)
+                       return FIO_Q_BUSY;
+
                io_u->error = errno;
                td_verror(td, io_u->error, "xfer");
                return FIO_Q_COMPLETED;