From: Bruce Cran <bruce@cran.org.uk>
Date: Wed, 10 Oct 2012 14:15:58 +0000 (-0600)
Subject: Add pending IO to the tail of the busy list
X-Git-Tag: fio-2.0.10~6
X-Git-Url: https://git.kernel.dk/?p=fio.git;a=commitdiff_plain;h=94c6372c7332b69e4f308e46614a6952695fa86c

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 a2c583df..e047677e 100644
--- 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) {