linux-kernel - Re: [PATCH v8 05/15] xfs: ignore HW which cannot atomic write a single block

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Message-ID: <20250423154615.GA31899@lst.de>
Date: Wed, 23 Apr 2025 17:46:15 +0200
From: Christoph Hellwig <hch@....de>
To: "Darrick J. Wong" <djwong@...nel.org>
Cc: Christoph Hellwig <hch@....de>, John Garry <john.g.garry@...cle.com>,
	brauner@...nel.org, viro@...iv.linux.org.uk, jack@...e.cz,
	cem@...nel.org, linux-fsdevel@...r.kernel.org, dchinner@...hat.com,
	linux-xfs@...r.kernel.org, linux-kernel@...r.kernel.org,
	ojaswin@...ux.ibm.com, ritesh.list@...il.com,
	martin.petersen@...cle.com, linux-ext4@...r.kernel.org,
	linux-block@...r.kernel.org, catherine.hoang@...cle.com,
	linux-api@...r.kernel.org
Subject: Re: [PATCH v8 05/15] xfs: ignore HW which cannot atomic write a
 single block

On Wed, Apr 23, 2025 at 08:12:24AM -0700, Darrick J. Wong wrote:
> I disagree, leaving the hardware awu_min/max in the buftarg makes more
> sense to me because the buftarg is our abstraction for a block device,
> and these fields describe the atomic write units that we can use with
> that block device.

Yeah.  If you want to keep it I'd suggest we go back to my earlier
suggestion.