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Re: [Qemu-devel] [RFC PATCH 1/9] block: Add bdrv_aio_cancel_async
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From: |
Paolo Bonzini |
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Subject: |
Re: [Qemu-devel] [RFC PATCH 1/9] block: Add bdrv_aio_cancel_async |
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Date: |
Fri, 22 Aug 2014 10:14:55 +0200 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.7.0 |
Il 22/08/2014 03:23, Fam Zheng ha scritto:
> What about we save cb and opaque locally, and set acb->cb to a nop. When
> cancel
> is done we can call the original cb?
That might work but needs some auditing. Right now the AIOCB is still
valid when the callback is called, and this would be changed.
Also, having different semantics for cancellation vs. completion would
be painful.
Paolo
Re: [Qemu-devel] [RFC PATCH 1/9] block: Add bdrv_aio_cancel_async, Stefan Hajnoczi, 2014/08/21
[Qemu-devel] [RFC PATCH 2/9] tests: Add testing code for bdrv_aio_cancel_async, Fam Zheng, 2014/08/21
[Qemu-devel] [RFC PATCH 3/9] iscsi: Implement .cancel_async in acb info, Fam Zheng, 2014/08/21
[Qemu-devel] [RFC PATCH 4/9] linux-aio: Implement .cancel_async, Fam Zheng, 2014/08/21
[Qemu-devel] [RFC PATCH 5/9] thread-pool: Implement .cancel_async, Fam Zheng, 2014/08/21