On Mon, Jul 14, 2025 at 08:52:39AM +0100, John Garry wrote: > On 14/07/2025 06:53, Christoph Hellwig wrote: >> Now we should be able to implement the software atomic writes pretty >> easily for zoned XFS, and funnily they might actually be slightly faster >> than normal writes due to the transaction batching. Now that we're >> getting reasonable test coverage we should be able to give it a spin, but >> I have a few too many things on my plate at the moment. > > Isn't reflink currently incompatible with zoned xfs?
reflink itself yes due to the garbage collection algorithm that is not reflink aware. But all I/O on zoned file RT device uses the same I/O path design as writes that unshare reflinks because it always has to write out of place.
