Re: [PATCH 07/19] dm-snap: use blkdev_issue_flush instead of open coding it

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To: Christoph Hellwig <hch@xxxxxx>
Subject: Re: [PATCH 07/19] dm-snap: use blkdev_issue_flush instead of open coding it
From: Mike Snitzer <snitzer@xxxxxxxxxx>
Date: Thu, 27 Jan 2022 12:11:06 -0500
Cc: Jens Axboe <axboe@xxxxxxxxx>, Pavel Begunkov <asml.silence@xxxxxxxxx>, Ryusuke Konishi <konishi.ryusuke@xxxxxxxxx>, Konstantin Komarov <almaz.alexandrovich@xxxxxxxxxxxxxxxxxxxx>, Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>, "Md . Haris Iqbal " <haris.iqbal@xxxxxxxxx>, Jack Wang <jinpu.wang@xxxxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxx>, Philipp Reisner <philipp.reisner@xxxxxxxxxx>, Lars Ellenberg <lars.ellenberg@xxxxxxxxxx>, linux-block@xxxxxxxxxxxxxxx, dm-devel@xxxxxxxxxx, linux-fsdevel@xxxxxxxxxxxxxxx, linux-nfs@xxxxxxxxxxxxxxx, linux-nilfs@xxxxxxxxxxxxxxx, ntfs3@xxxxxxxxxxxxxxx, xen-devel@xxxxxxxxxxxxxxxxxxxx, drbd-dev@xxxxxxxxxxxxxxxx
In-reply-to: <20220124091107.642561-8-hch@lst.de>

On Mon, Jan 24 2022 at  4:10P -0500,
Christoph Hellwig <hch@xxxxxx> wrote:

> Use blkdev_issue_flush, which uses an on-stack bio instead of an
> opencoded version with a bio embedded into struct dm_snapshot.
> 
> Signed-off-by: Christoph Hellwig <hch@xxxxxx>

Acked-by: Mike Snitzer <snitzer@xxxxxxxxxx>

References:
- improve the bio allocation interface v2
  - From: Christoph Hellwig
- [PATCH 07/19] dm-snap: use blkdev_issue_flush instead of open coding it
  - From: Christoph Hellwig

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