linux-kernel - Re: [PATCH] md/raid5: Convert stripe_head's "dev" to flexible array member

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Message-ID: <33c61f2b-2391-1199-d760-b438aff2cebe@huaweicloud.com>
Date:   Tue, 23 May 2023 21:46:24 +0800
From:   Yu Kuai <yukuai1@...weicloud.com>
To:     Christoph Hellwig <hch@...radead.org>,
        Yu Kuai <yukuai1@...weicloud.com>
Cc:     Kees Cook <keescook@...omium.org>, Song Liu <song@...nel.org>,
        linux-raid@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-hardening@...r.kernel.org, "yukuai (C)" <yukuai3@...wei.com>
Subject: Re: [PATCH] md/raid5: Convert stripe_head's "dev" to flexible array
 member

Hi,

在 2023/05/23 13:54, Christoph Hellwig 写道:
> On Mon, May 22, 2023 at 07:49:38PM +0800, Yu Kuai wrote:
>> Hi, Christoph
>>
>> 在 2023/05/18 12:27, Christoph Hellwig 写道:
>>
>> It's not related to this patch, just I think I found a problem while
>> reviewing raid5 code, commit e82ed3a4fbb5 ("md/raid6: refactor
>> raid5_read_one_chunk") changes the caculation of 'end_sector',
>> 'end_sector' is compared to 'rdev->recovery_offset', so it should be
>> offset to rdev, but this commit change it to offset to the array.
>>
>> Perhaps following change will make sense:
> 
> Yes, I think it does.  Can you send a patch?
> .
> 

Of course, thanks for your response.

Kuai