linux-kernel - Re: Regarding WQ_MEM

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Message-ID: <Ywe5TlXr2cR3inuG@slm.duckdns.org>
Date:   Thu, 25 Aug 2022 08:02:54 -1000
From:   "tj@...nel.org" <tj@...nel.org>
To:     "Xue, Zhan" <zhan.xue@...el.com>
Cc:     "florian@...kler.org" <florian@...kler.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: Regarding WQ_MEM_RECLAIM

On Wed, Aug 24, 2022 at 06:10:56AM +0000, Xue, Zhan wrote:
> Convert to plain text..

The email's formatting is too painful to reply directly.

Here are two brief points:

* Just don't share the same workqueue between work items which need forward
  progress guarantee and ones which don't.

* If something can block memory reclaim, it is in the memory reclaim path by
  definition.

Thanks.

-- 
tejun