linux-kernel - Re: [PATCH v4 00/14] forcealign for xfs

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Message-ID: <20240923033305.GA30200@lst.de>
Date: Mon, 23 Sep 2024 05:33:05 +0200
From: Christoph Hellwig <hch@....de>
To: Dave Chinner <david@...morbit.com>
Cc: John Garry <john.g.garry@...cle.com>,
	Ritesh Harjani <ritesh.list@...il.com>, chandan.babu@...cle.com,
	djwong@...nel.org, dchinner@...hat.com, hch@....de,
	viro@...iv.linux.org.uk, brauner@...nel.org, jack@...e.cz,
	linux-xfs@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-fsdevel@...r.kernel.org, catherine.hoang@...cle.com,
	martin.petersen@...cle.com
Subject: Re: [PATCH v4 00/14] forcealign for xfs

On Mon, Sep 23, 2024 at 12:57:32PM +1000, Dave Chinner wrote:
> Ok, but that's not going to be widespread. Very little storage
> hardware out there supports atomic writes - the vast majority of
> deployments will be new hardware that will have mkfs run on it.

Just about every enterprise NVMe SSD supports atomic write size
larger than a single LBA, because it is completely natural fallout
from FTL deѕign.  That beeing said to support those SSDs a block
size of 16 or 32k would be a lot more natural than all the forcealign
madness.