Add pending IO to the tail of the busy list

We add at the head now. The windowsaio engine completes from
the head of the list, so lets ensure that we wait and complete
closer to the submit order.

Signed-off-by: Jens Axboe <axboe@kernel.dk>

diff --git a/io_u.c b/io_u.c
index a2c583df26bb43943d7bda1ebf05e6999d9432b6..e047677e1b507d0923dfe781f5c354f63248a62c 100644 (file)
--- a/io_u.c
+++ b/io_u.c
@@ -1096,7 +1096,7 @@ again:
 
                io_u->error = 0;
                flist_del(&io_u->list);
-               flist_add(&io_u->list, &td->io_u_busylist);
+               flist_add_tail(&io_u->list, &td->io_u_busylist);
                td->cur_depth++;
                io_u->flags |= IO_U_F_IN_CUR_DEPTH;
        } else if (td->o.verify_async) {