Re: [PATCH 06/13] md: update the optimal I/O size on reshape

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To: Christoph Hellwig <hch@xxxxxx>
Subject: Re: [PATCH 06/13] md: update the optimal I/O size on reshape
From: "Martin K. Petersen" <martin.petersen@xxxxxxxxxx>
Date: Thu, 24 Sep 2020 11:53:29 -0400
Cc: Jens Axboe <axboe@xxxxxxxxx>, Song Liu <song@xxxxxxxxxx>, Hans de Goede <hdegoede@xxxxxxxxxx>, Coly Li <colyli@xxxxxxx>, Richard Weinberger <richard@xxxxxx>, Minchan Kim <minchan@xxxxxxxxxx>, Johannes Thumshirn <Johannes.Thumshirn@xxxxxxx>, Justin Sanders <justin@xxxxxxxxxx>, linux-mtd@xxxxxxxxxxxxxxxxxxx, dm-devel@xxxxxxxxxx, linux-block@xxxxxxxxxxxxxxx, linux-bcache@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, drbd-dev@xxxxxxxxxxxxxxx, linux-raid@xxxxxxxxxxxxxxx, linux-fsdevel@xxxxxxxxxxxxxxx, linux-mm@xxxxxxxxx, cgroups@xxxxxxxxxxxxxxx
In-reply-to: <20200924065140.726436-7-hch@lst.de> (Christoph Hellwig's message of "Thu, 24 Sep 2020 08:51:33 +0200")
Organization: Oracle Corporation
References: <20200924065140.726436-1-hch@lst.de> <20200924065140.726436-7-hch@lst.de>

Christoph,

> The raid5 and raid10 drivers currently update the read-ahead size, but
> not the optimal I/O size on reshape.  To prepare for deriving the
> read-ahead size from the optimal I/O size make sure it is updated as
> well.

Reviewed-by: Martin K. Petersen <martin.petersen@xxxxxxxxxx>

-- 
Martin K. Petersen	Oracle Linux Engineering

References:
- bdi cleanups v7
  - From: Christoph Hellwig
- [PATCH 06/13] md: update the optimal I/O size on reshape
  - From: Christoph Hellwig

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