linux-kernel - Re: [PATCH RFC v3 14/15] block: fix disordered IO in the case recursive split

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Message-ID: <ad353972-085f-42a3-b8f0-20416312479b@yukuai.org.cn>
Date: Thu, 4 Sep 2025 00:59:49 +0800
From: Yu Kuai <hailan@...uai.org.cn>
To: Christoph Hellwig <hch@...radead.org>, Yu Kuai <yukuai1@...weicloud.com>
Cc: colyli@...nel.org, hare@...e.de, dlemoal@...nel.org, tieren@...as.com,
 axboe@...nel.dk, tj@...nel.org, josef@...icpanda.com, song@...nel.org,
 kmo@...erainc.com, satyat@...gle.com, ebiggers@...gle.com, neil@...wn.name,
 akpm@...ux-foundation.org, linux-block@...r.kernel.org,
 linux-kernel@...r.kernel.org, cgroups@...r.kernel.org,
 linux-raid@...r.kernel.org, yukuai3@...wei.com, yi.zhang@...wei.com,
 yangerkun@...wei.com, johnny.chenyi@...wei.com
Subject: Re: [PATCH RFC v3 14/15] block: fix disordered IO in the case
 recursive split

Hi,

在 2025/9/3 21:34, Christoph Hellwig 写道:
> Btw disordered IO sounds a bit odd to me.  I'm not a native english
> sepaker, but in the past we've used the term "I/O reordering" for
> issues like this.
>
>> +		if (split && !bdev_is_zoned(bio->bi_bdev))
> Why are zoned devices special cased here?
>
I'm not that sure about zoned device before, I'll remove this checking,
and mention the problem Bart met in commit message in the next version.

Thanks,
Kuai