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Re: [Qemu-devel] [PATCH 08/14] block-backend: Add .drained_poll callback

From: Fam Zheng
Subject: Re: [Qemu-devel] [PATCH 08/14] block-backend: Add .drained_poll callback
Date: Tue, 11 Sep 2018 16:26:40 +0800
User-agent: Mutt/1.10.1 (2018-07-13)

On Fri, 09/07 18:15, Kevin Wolf wrote:
> A bdrv_drain operation must ensure that all parents are quiesced, this
> includes BlockBackends. Otherwise, callbacks called by requests that are
> completed on the BDS layer, but not quite yet on the BlockBackend layer
> could still create new requests.
> Signed-off-by: Kevin Wolf <address@hidden>

Reviewed-by: Fam Zheng <address@hidden>

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