Re: [PATCH V2 3/3] block: use blk_mq_no_io() for avoiding lock dependency

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On Thu, Apr 03, 2025 at 10:52:10AM +0800, Ming Lei wrote:
> Lock implied in blk_mq_enter_no_io() won't connect with any lock in IO
> code paths now, so use it to prevent IO from entering queue for avoiding
> lock dependency between freeze lock and elevator lock, and we have got
> many such reports.

Please explain what this actually fixes here.





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