linux-kernel - Re: [RFC PATCH 0/8] xfs: single block atomic writes for buffered IO

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Message-ID: <aRcsFF5eCCsx5kYh@casper.infradead.org>
Date: Fri, 14 Nov 2025 13:18:12 +0000
From: Matthew Wilcox <willy@...radead.org>
To: Ojaswin Mujoo <ojaswin@...ux.ibm.com>
Cc: Dave Chinner <david@...morbit.com>,
	Ritesh Harjani <ritesh.list@...il.com>,
	Christoph Hellwig <hch@....de>,
	Christian Brauner <brauner@...nel.org>, djwong@...nel.org,
	john.g.garry@...cle.com, tytso@....edu, dchinner@...hat.com,
	linux-xfs@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-ext4@...r.kernel.org, linux-fsdevel@...r.kernel.org,
	linux-mm@...ck.org, jack@...e.cz, nilay@...ux.ibm.com,
	martin.petersen@...cle.com, rostedt@...dmis.org, axboe@...nel.dk,
	linux-block@...r.kernel.org, linux-trace-kernel@...r.kernel.org
Subject: Re: [RFC PATCH 0/8] xfs: single block atomic writes for buffered IO

On Fri, Nov 14, 2025 at 02:50:25PM +0530, Ojaswin Mujoo wrote:
> buffered IO. Further, many DBs support both direct IO and buffered IO
> well and it may not be fair to force them to stick to direct IO to get
> the benefits of atomic writes.

It may not be fair to force kernel developers to support a feature that
has no users.