linux-kernel - Re: [PATCH RFC md-6.16 v3 11/19] md/md-llbitmap: implement bitmap IO

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Message-ID: <20250512132502.GB31781@lst.de>
Date: Mon, 12 May 2025 15:25:02 +0200
From: Christoph Hellwig <hch@....de>
To: Yu Kuai <yukuai1@...weicloud.com>
Cc: Christoph Hellwig <hch@....de>, xni@...hat.com, colyli@...nel.org,
	agk@...hat.com, snitzer@...nel.org, mpatocka@...hat.com,
	song@...nel.org, linux-kernel@...r.kernel.org,
	dm-devel@...ts.linux.dev, 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 md-6.16 v3 11/19] md/md-llbitmap: implement bitmap
 IO

On Mon, May 12, 2025 at 04:15:34PM +0800, Yu Kuai wrote:
>>> +static bool is_raid456(struct mddev *mddev)
>>> +{
>>> +	return (mddev->level == 4 || mddev->level == 5 || mddev->level == 6);
>>> +}
>>
>> This really should be in a common helper somewhere..
>
> Perhaps md.h?

Sounds good.