From 5da91e4ef46fe85694c5c43a8f3a186a7a83cda7 Mon Sep 17 00:00:00 2001
From: Fam Zheng <famz@redhat.com>
Date: Thu, 11 Sep 2014 13:41:25 +0800
Subject: [PATCH] win32-aio: Drop win32_aiocb_info.cancel

Signed-off-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
---
 block/win32-aio.c | 14 --------------
 1 file changed, 14 deletions(-)

diff --git a/block/win32-aio.c b/block/win32-aio.c
index 5030e3274d..eed86f7e92 100644
--- a/block/win32-aio.c
+++ b/block/win32-aio.c
@@ -106,22 +106,8 @@ static void win32_aio_completion_cb(EventNotifier *e)
     }
 }
 
-static void win32_aio_cancel(BlockDriverAIOCB *blockacb)
-{
-    QEMUWin32AIOCB *waiocb = (QEMUWin32AIOCB *)blockacb;
-
-    /*
-     * CancelIoEx is only supported in Vista and newer.  For now, just
-     * wait for completion.
-     */
-    while (!HasOverlappedIoCompleted(&waiocb->ov)) {
-        aio_poll(bdrv_get_aio_context(blockacb->bs), true);
-    }
-}
-
 static const AIOCBInfo win32_aiocb_info = {
     .aiocb_size         = sizeof(QEMUWin32AIOCB),
-    .cancel             = win32_aio_cancel,
 };
 
 BlockDriverAIOCB *win32_aio_submit(BlockDriverState *bs,