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[v3,7/8] block: Implement bdrv_em_co_aiocb_info.cancel_async

Message ID 1409107756-5967-8-git-send-email-famz@redhat.com
State New
Headers show

Commit Message

Fam Zheng Aug. 27, 2014, 2:49 a.m. UTC 
Nothing to do here.

Signed-off-by: Fam Zheng <famz@redhat.com>
---
 block.c | 7 +++++++
 1 file changed, 7 insertions(+)
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Patch

diff --git a/block.c b/block.c
index f4c77ec..ac1cfb4 100644
--- a/block.c
+++ b/block.c
@@ -4746,9 +4746,16 @@  static void bdrv_aio_co_cancel_em(BlockDriverAIOCB *blockacb)
     }
 }
 
+static void bdrv_aio_cancel_em_async(BlockDriverAIOCB *blockacb)
+{
+    /* A nop async cancel will just work for us, because later the request will
+     * complete in caller's coroutine. */
+}
+
 static const AIOCBInfo bdrv_em_co_aiocb_info = {
     .aiocb_size         = sizeof(BlockDriverAIOCBCoroutine),
     .cancel             = bdrv_aio_co_cancel_em,
+    .cancel_async       = bdrv_aio_cancel_em_async,
 };
 
 static void bdrv_co_em_bh(void *opaque)