linux-kernel - Re: [PATCH RFC 4/7] md/raid10: convert read/write to use bio_submit

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Message-ID: <b45b719c-109c-46ce-8ab8-6ef2410c2a45@oracle.com>
Date: Tue, 2 Sep 2025 15:46:17 +0100
From: John Garry <john.g.garry@...cle.com>
To: Yu Kuai <yukuai1@...weicloud.com>, Christoph Hellwig <hch@...radead.org>
Cc: anthony <antmbox@...ngman.org.uk>, colyli@...nel.org, hare@...e.de,
        tieren@...as.com, axboe@...nel.dk, tj@...nel.org, josef@...icpanda.com,
        song@...nel.org, akpm@...ux-foundation.org, neil@...wn.name,
        linux-block@...r.kernel.org, linux-kernel@...r.kernel.org,
        cgroups@...r.kernel.org, linux-raid@...r.kernel.org,
        yi.zhang@...wei.com, yangerkun@...wei.com, johnny.chenyi@...wei.com,
        "yukuai (C)" <yukuai3@...wei.com>
Subject: Re: [PATCH RFC 4/7] md/raid10: convert read/write to use
 bio_submit_split()

On 02/09/2025 09:25, Yu Kuai wrote:
>> There does not look to be some switch to turn off bad block support. 
>> That's from briefly checking raid10.c anyway. Kuai, any thoughts on 
>> whether we should allow this to be disabled?
>>
> 
> I remember that I used to suggest always enable failfast in this case,
> and badblocks can be bypassed. Anyway, I think it's good to allow this
> to be disabled, it will behave very similar to failfast.

ok, I can put this on my TODO list, unless someone else wants it.

Thanks,
John