Re: [PATCH] blk-mq: make synchronous hw_queue runs RT friendly

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To: Christoph Hellwig <hch@xxxxxxxxxxxxx>
Subject: Re: [PATCH] blk-mq: make synchronous hw_queue runs RT friendly
From: Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx>
Date: Mon, 13 Dec 2021 14:52:03 +0100
Cc: Davidlohr Bueso <dave@xxxxxxxxxxxx>, axboe@xxxxxxxxx, tglx@xxxxxxxxxxxxx, linux-block@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, Davidlohr Bueso <dbueso@xxxxxxx>
In-reply-to: <YbdFeHVnQbT0E5kR@infradead.org>
References: <20211213054425.28121-1-dave@stgolabs.net> <YbdFeHVnQbT0E5kR@infradead.org>

On 2021-12-13 05:07:04 [-0800], Christoph Hellwig wrote:
> But more importantly:  why isn't migrate_disable/enable doing the right
> thing for !PREEMPT_RT to avoid this mess?

Thank you for asking the question.

Sebastian

References:
- [PATCH] blk-mq: make synchronous hw_queue runs RT friendly
  - From: Davidlohr Bueso
- Re: [PATCH] blk-mq: make synchronous hw_queue runs RT friendly
  - From: Christoph Hellwig

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