linux-ext4 - Re: [PATCH] buffer: Associate the meta bio with blkg from buffer page

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Message-ID: <5c6c1aa7-eae9-fe0f-aaf4-626a5f273234@huaweicloud.com>
Date: Sat, 31 Aug 2024 17:48:57 +0800
From: Yu Kuai <yukuai1@...weicloud.com>
To: Tejun Heo <tj@...nel.org>, Yu Kuai <yukuai1@...weicloud.com>
Cc: Haifeng Xu <haifeng.xu@...pee.com>, viro@...iv.linux.org.uk,
 brauner@...nel.org, jack@...e.cz, tytso@....edu, yi.zhang@...weicloud.com,
 linux-ext4@...r.kernel.org, linux-block@...r.kernel.org,
 linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
 "yukuai (C)" <yukuai3@...wei.com>
Subject: Re: [PATCH] buffer: Associate the meta bio with blkg from buffer page

Hi,

在 2024/08/31 16:03, Tejun Heo 写道:
> Hello,
> 
> On Sat, Aug 31, 2024 at 02:11:08PM +0800, Yu Kuai wrote:
> ...
>>> I think the right way to do it is marking the bio with REQ_META and
>>> implement forced charging in blk-throtl similar to blk-iocost.
>>
>> This is the exact thing I did in the code I attached in the other
>> thread, do you take a look?
>>
>> https://lore.kernel.org/all/97fc38e6-a226-5e22-efc2-4405beb6d75b@huaweicloud.com/
> 
> Sorry about missing it but yeah that *looks* like the right direction to be
> headed. Would you mind testing it and turning it into a proper patch?

Of course.

Thanks!
Kuai

> 
> Thanks.
>