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.