linux-kernel - Re: [PATCH AUTOSEL 5.15 25/31] dm-log-writes: set dma_alignment limit in io

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Message-ID: <Y342hZgFQdLfTfdx@kbusch-mbp.dhcp.thefacebook.com>
Date:   Wed, 23 Nov 2022 08:04:37 -0700
From:   Keith Busch <kbusch@...nel.org>
To:     Sasha Levin <sashal@...nel.org>
Cc:     linux-kernel@...r.kernel.org, stable@...r.kernel.org,
        Mike Snitzer <snitzer@...nel.org>,
        Jens Axboe <axboe@...nel.dk>, agk@...hat.com,
        dm-devel@...hat.com
Subject: Re: [PATCH AUTOSEL 5.15 25/31] dm-log-writes: set dma_alignment
 limit in io_hints

On Wed, Nov 23, 2022 at 07:42:26AM -0500, Sasha Levin wrote:
> From: Keith Busch <kbusch@...nel.org>
> 
> [ Upstream commit 50a893359cd2643ee1afc96eedc9e7084cab49fa ]
> 
> This device mapper needs bio vectors to be sized and memory aligned to
> the logical block size. Set the minimum required queue limit
> accordingly.

Probably harmless, but these dm dma_alignment patches are not needed
prior to 6.0.