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Re: [PATCH 3/3] blockdev: mirror: avoid potential deadlock when using io

From: Fiona Ebner
Subject: Re: [PATCH 3/3] blockdev: mirror: avoid potential deadlock when using iothread
Date: Fri, 20 Oct 2023 10:46:23 +0200
User-agent: Mozilla Thunderbird 
Am 19.10.23 um 15:19 schrieb Fiona Ebner:
> The bdrv_getlength() function is a generated co-wrapper and uses
> AIO_WAIT_WHILE() to wait for the spawned coroutine. AIO_WAIT_WHILE()
> expects the lock to be acquired exactly once.
> 
> This can happen when the source node is explicitly specified as the
> @replaces parameter or if there is a filter on top of the source node.

Correction: this should read "or if the source node is a filter node".
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