From: Christoph Hellwig <hch@lst.de>
To: Dave Chinner <david@fromorbit.com>
Cc: Christoph Hellwig <hch@lst.de>,
John Garry <john.g.garry@oracle.com>,
"Darrick J. Wong" <djwong@kernel.org>,
linux-fsdevel@vger.kernel.org, linux-xfs@vger.kernel.org,
linux-block@vger.kernel.org, linux-nvme@lists.infradead.org
Subject: Re: Do we need an opt-in for file systems use of hw atomic writes?
Date: Tue, 15 Jul 2025 08:05:09 +0200 [thread overview]
Message-ID: <20250715060509.GD18349@lst.de> (raw)
In-Reply-To: <aHVuSU3TB4eNRq8V@dread.disaster.area>
On Tue, Jul 15, 2025 at 06:53:29AM +1000, Dave Chinner wrote:
> This isn't a filesystem question - this is a question about what
> features the block device should expose by default to the
> user/filesystem by default.
It's both. As I said before we've spent a lot of time making the file
systems less reliant on hardware getting everything right by adding
checksums (for metadata everywhere, and non-XFS file systems for data),
lsn verifications, etc. And now we go all in to trust a new (in case
of nvme very much misdesigned) feature.
I'm perfectly fine offering that use, but I'm a lot less excited by
automatically using using it due to my deep mistrust of hardware.
next prev parent reply other threads:[~2025-07-15 6:05 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-07-14 13:17 Do we need an opt-in for file systems use of hw atomic writes? Christoph Hellwig
2025-07-14 13:24 ` Theodore Ts'o
2025-07-14 13:30 ` Christoph Hellwig
2025-07-14 16:04 ` Darrick J. Wong
2025-07-15 6:00 ` Christoph Hellwig
2025-07-15 3:22 ` Martin K. Petersen
2025-07-15 6:00 ` Christoph Hellwig
2025-07-15 12:45 ` Martin K. Petersen
2025-07-14 13:39 ` John Garry
2025-07-14 13:50 ` Christoph Hellwig
2025-07-14 15:53 ` John Garry
2025-07-15 6:02 ` Christoph Hellwig
2025-07-15 8:42 ` John Garry
2025-07-15 9:03 ` Christoph Hellwig
2025-08-19 11:42 ` John Garry
2025-08-19 13:39 ` Christoph Hellwig
2025-08-19 14:36 ` John Garry
2025-08-19 14:43 ` Darrick J. Wong
2025-08-19 14:45 ` Christoph Hellwig
2025-08-21 14:01 ` Keith Busch
2025-07-15 10:02 ` Christian Brauner
2025-07-15 11:29 ` Christoph Hellwig
2025-07-15 12:20 ` Christian Brauner
2025-07-15 11:58 ` Theodore Ts'o
2025-07-14 20:53 ` Dave Chinner
2025-07-15 6:05 ` Christoph Hellwig [this message]
2025-07-15 20:56 ` Keith Busch
2025-07-16 5:50 ` Nilay Shroff
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