Re: [Qemu-devel] [PATCH v3 4/8] linux-aio: Implement .cancel_async

2014-09-02 Thread Stefan Hajnoczi
On Wed, Aug 27, 2014 at 10:49:12AM +0800, Fam Zheng wrote: > @@ -110,6 +109,22 @@ static void qemu_laio_completion_cb(EventNotifier *e) > } > } > > +static void laio_cancel_async(BlockDriverAIOCB *blockacb) > +{ > +struct qemu_laiocb *laiocb = (struct qemu_laiocb *)blockacb; > +stru

[Qemu-devel] [PATCH v3 4/8] linux-aio: Implement .cancel_async

2014-08-26 Thread Fam Zheng
Just call io_cancel (2), if it fails, it means the request is not canceled, so the event loop will eventually call qemu_laio_process_completion. In qemu_laio_process_completion, change to call the cb unconditionally. It is required by .cancel_async, and also acceptable by .cancel. Signed-off-by: