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Date: Tue, 12 Dec 2023 05:10:42 -0800
From: Christoph Hellwig <hch@infradead.org>
To: John Garry <john.g.garry@oracle.com>
Cc: Ojaswin Mujoo <ojaswin@linux.ibm.com>, linux-ext4@vger.kernel.org,
	Theodore Ts'o <tytso@mit.edu>,
	Ritesh Harjani <ritesh.list@gmail.com>,
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	"Darrick J . Wong" <djwong@kernel.org>, linux-block@vger.kernel.org,
	linux-xfs@vger.kernel.org, linux-fsdevel@vger.kernel.org,
	dchinner@redhat.com
Subject: Re: [RFC 0/7] ext4: Allocator changes for atomic write support with
 DIO
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On Tue, Dec 12, 2023 at 07:46:51AM +0000, John Garry wrote:
> It is assumed that the user will fallocate/dd the complete file before
> issuing atomic writes, and we will have extent alignment and length as
> required.

I don't think that's a long time maintainable usage model.