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From: Artur Paszkiewicz <artur.paszkiewicz@intel.com>
To: Guoqing Jiang <jgq516@gmail.com>, song@kernel.org
Cc: linux-raid@vger.kernel.org, Guoqing Jiang <jiangguoqing@kylinos.cn>
Subject: Re: [PATCH 2/5] md: the latest try for improve io stats accounting
Date: Wed, 19 May 2021 09:26:21 +0200	[thread overview]
Message-ID: <d788bc1f-3fd9-a293-2f2a-6047fdd45625@intel.com> (raw)
In-Reply-To: <2bfe7f2b-5b5b-634d-3996-3c4ed77e74ff@gmail.com>

On 19.05.2021 03:30, Guoqing Jiang wrote:
> Hmm, raid0 allocates split bio from mddev->bio_set, but raid5 is
> different, it splits bio from r5conf->bio_split. So either let raid5 also
> splits bio from mddev->bio_set, or add an additional checking for
> raid5. Thoughts?

It looks like raid5 has a different bio set for that because it uses
mddev->bio_set for something else - allocating a bio for rdev. So I 
think it can be changed to split from mddev->bio_set and have a private
bio set for the rdev bio allocation.

  reply	other threads:[~2021-05-19  7:26 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-18  5:32 [PATCH 0/5] md: io stats accounting Guoqing Jiang
2021-05-18  5:32 ` [PATCH 1/5] md: revert " Guoqing Jiang
2021-05-18  5:32 ` [PATCH 2/5] md: the latest try for improve " Guoqing Jiang
2021-05-18 10:12   ` Artur Paszkiewicz
2021-05-19  1:30     ` Guoqing Jiang
2021-05-19  7:26       ` Artur Paszkiewicz [this message]
2021-05-19  7:46         ` Christoph Hellwig
2021-05-19  8:09         ` Guoqing Jiang
2021-05-20  0:45           ` Song Liu
2021-05-18 13:35   ` Christoph Hellwig
2021-05-19  1:40     ` Guoqing Jiang
2021-05-18  5:32 ` [PATCH 3/5] md-multipath: enable io accounting Guoqing Jiang
2021-05-18 13:37   ` Christoph Hellwig
2021-05-19  1:46     ` Guoqing Jiang
2021-05-18  5:32 ` [PATCH 4/5] md/raid1: " Guoqing Jiang
2021-05-18 13:40   ` Christoph Hellwig
2021-05-19  1:47     ` Guoqing Jiang
2021-05-18  5:32 ` [PATCH 5/5] md/raid10: " Guoqing Jiang
2021-05-19  0:14 ` [PATCH 0/5] md: io stats accounting Song Liu
2021-05-19  1:50   ` Guoqing Jiang

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