On Fri, May 19 2023 at 12:09P -0400, Christoph Hellwig <hch@xxxxxxxxxxxxx> wrote: > FYI, I really don't think this primitive is a good idea. In the > concept of non-overwritable storage (NAND, SMR drives) the entire > concept of a one-shoot 'provisioning' that will guarantee later writes > are always possible is simply bogus. Valid point for sure, such storage shouldn't advertise support (and will return -EOPNOTSUPP). But the primitive still has utility for other classes of storage.