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authorFam Zheng <famz@redhat.com>2014-09-11 13:41:08 +0800
committerStefan Hajnoczi <stefanha@redhat.com>2014-09-22 11:38:57 +0100
commitf197fe2b2c77259b6570620f288d905bfa38e2da (patch)
treee9dcfaa75bbd9bc93ae309bbd2129207dc1e36b6 /include
parent0d910cfeaf2076b116b4517166d5deb0fea76394 (diff)
block: Add refcnt in BlockDriverAIOCB
This will be useful in synchronous cancel emulation with bdrv_aio_cancel_async. Signed-off-by: Fam Zheng <famz@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Diffstat (limited to 'include')
-rw-r--r--include/block/aio.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/block/aio.h b/include/block/aio.h
index 4603c0f066..2626fc745f 100644
--- a/include/block/aio.h
+++ b/include/block/aio.h
@@ -35,11 +35,13 @@ struct BlockDriverAIOCB {
BlockDriverState *bs;
BlockDriverCompletionFunc *cb;
void *opaque;
+ int refcnt;
};
void *qemu_aio_get(const AIOCBInfo *aiocb_info, BlockDriverState *bs,
BlockDriverCompletionFunc *cb, void *opaque);
void qemu_aio_release(void *p);
+void qemu_aio_ref(void *p);
typedef struct AioHandler AioHandler;
typedef void QEMUBHFunc(void *opaque);