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Re: [Qemu-devel] [PATCH 14/14] test-bdrv-drain: Test nested poll in bdrv

From: Fam Zheng
Subject: Re: [Qemu-devel] [PATCH 14/14] test-bdrv-drain: Test nested poll in bdrv_drain_poll_top_level()
Date: Tue, 11 Sep 2018 16:37:30 +0800
User-agent: Mutt/1.10.1 (2018-07-13)

On Fri, 09/07 18:15, Kevin Wolf wrote:
> This is a regression test for a deadlock that could occur in callbacks
> called from the aio_poll() in bdrv_drain_poll_top_level(). The
> AioContext lock wasn't released and therefore would be taken a second
> time in the callback. This would cause a possible AIO_WAIT_WHILE() in
> the callback to hang.
> Signed-off-by: Kevin Wolf <address@hidden>

Reviewed-by: Fam Zheng <address@hidden>

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