linux-kernel - Re: [PATCH v4 06/11] md/md-bitmap: delay registration of bitmap

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Message-ID: <23cec763-21e6-41d8-898b-55e3a42beeec@suse.de>
Date: Tue, 22 Jul 2025 08:07:43 +0200
From: Hannes Reinecke <hare@...e.de>
To: Yu Kuai <yukuai@...nel.org>, corbet@....net, agk@...hat.co,
 snitzer@...nel.org, mpatocka@...hat.com, hch@....de, song@...nel.org
Cc: linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org,
 dm-devel@...ts.linux.dev, linux-raid@...r.kernel.org, yukuai3@...wei.com,
 yangerkun@...wei.com, yi.zhang@...wei.com, johnny.chenyi@...wei.com
Subject: Re: [PATCH v4 06/11] md/md-bitmap: delay registration of bitmap_ops
 until creating bitmap

On 7/21/25 19:15, Yu Kuai wrote:
> From: Yu Kuai <yukuai3@...wei.com>
> 
> Currently bitmap_ops is registered while allocating mddev, this is fine
> when there is only one bitmap_ops.
> 
> Delay setting bitmap_ops until creating bitmap, so that user can choose
> which bitmap to use before running the array.
> 
> Signed-off-by: Yu Kuai <yukuai3@...wei.com>
> ---
>   Documentation/admin-guide/md.rst |  3 ++
>   drivers/md/md.c                  | 81 ++++++++++++++++++++------------
>   2 files changed, 55 insertions(+), 29 deletions(-)
> 
Reviewed-by: Hannes Reinecke <hare@...e.de>

Cheers,

Hannes
-- 
Dr. Hannes Reinecke                  Kernel Storage Architect
hare@...e.de                                +49 911 74053 688
SUSE Software Solutions GmbH, Frankenstr. 146, 90461 Nürnberg
HRB 36809 (AG Nürnberg), GF: I. Totev, A. McDonald, W. Knoblich