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SubjectRe: [PATCH -next 8/8] block: fix null-pointer dereference in ioc_pd_init
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Hi,

在 2022/11/29 22:25, Christoph Hellwig 写道:
> On Mon, Nov 28, 2022 at 11:44:34PM +0800, Li Nan wrote:
>> Fix problem by moving rq_qos_exit() to disk_release().
>
> No, that now means it is removed to later. You need to add proper
> synchronization.
> .
>

Can you explain a bit more? Maybe I'm being noob, here disk is about to
be freed, and I can think of any contention.

Thanks,
Kuai

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