Re: [RFC PATCH] md: split bio by io_opt size in md_submit_bio()

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To: Coly Li <i@xxxxxxx>
Subject: Re: [RFC PATCH] md: split bio by io_opt size in md_submit_bio()
From: Christoph Hellwig <hch@xxxxxx>
Date: Wed, 16 Jul 2025 13:45:33 +0200
Cc: Christoph Hellwig <hch@xxxxxx>, colyli@xxxxxxxxxx, linux-raid@xxxxxxxxxxxxxxx, linux-block@xxxxxxxxxxxxxxx, Yu Kuai <yukuai3@xxxxxxxxxx>, Xiao Ni <xni@xxxxxxxxxx>, Hannes Reinecke <hare@xxxxxxx>, Martin Wilck <mwilck@xxxxxxxx>, Keith Busch <kbusch@xxxxxxxxxx>
In-reply-to: <D12A8BDA-5C2B-4FA7-9C92-731BD321A611@coly.li>
References: <20250715180241.29731-1-colyli@kernel.org> <20250716113737.GA31369@lst.de> <437E98DD-7D64-49BF-9F2C-04CB0A142A88@coly.li> <20250716114121.GA32207@lst.de> <D12A8BDA-5C2B-4FA7-9C92-731BD321A611@coly.li>
User-agent: Mutt/1.5.17 (2007-11-01)

On Wed, Jul 16, 2025 at 07:44:38PM +0800, Coly Li wrote:
> Do you mean setting max_hw_sectors as (chunk_size * data_disks)?

If that is what works best: yes.

Follow-Ups:
- Re: [RFC PATCH] md: split bio by io_opt size in md_submit_bio()
  - From: Coly Li

References:
- [RFC PATCH] md: split bio by io_opt size in md_submit_bio()
  - From: colyli
- Re: [RFC PATCH] md: split bio by io_opt size in md_submit_bio()
  - From: Christoph Hellwig
- Re: [RFC PATCH] md: split bio by io_opt size in md_submit_bio()
  - From: Christoph Hellwig
- Re: [RFC PATCH] md: split bio by io_opt size in md_submit_bio()
  - From: Coly Li

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