linux-kernel - Re: [RFC PATCHv2] block: set bdi congested when no tag available

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Message-ID: <281b7645-5ce3-0339-78d9-bbc737e4c50e@kernel.dk>
Date:   Thu, 16 Jun 2022 09:27:43 -0600
From:   Jens Axboe <axboe@...nel.dk>
To:     "zhaoyang.huang" <zhaoyang.huang@...soc.com>,
        Mel Gorman <mgorman@...hsingularity.net>,
        Zhaoyang Huang <huangzhaoyang@...il.com>,
        linux-block@...r.kernel.org, linux-kernel@...r.kernel.org,
        ke.wang@...soc.com
Subject: Re: [RFC PATCHv2] block: set bdi congested when no tag available

On 6/16/22 6:30 AM, zhaoyang.huang wrote:
> From: Zhaoyang Huang <zhaoyang.huang@...soc.com>
> 
> In previous version, block layer will set bdi to be congested when
> get_request fail, which may throttle direct_reclaim. Move them back
> under current blk-mq design.

bdi congestion doesn't exist anymore, not sure what this patch is
against?

-- 
Jens Axboe