On Sat, Mar 13, 2021 at 8:09 AM Adam Borowski <kilobyte@xxxxxxxxxx> wrote: > > On Wed, Mar 10, 2021 at 02:26:43PM +0000, Matthew Wilcox wrote: > > On Wed, Mar 10, 2021 at 08:21:59AM -0600, Goldwyn Rodrigues wrote: > > > DAX on btrfs has been attempted[1]. Of course, we could not > > > > But why? A completeness fetish? I don't understand why you decided > > to do this work. > > * xfs can shapshot only single files, btrfs entire subvolumes > * btrfs-send|receive > * enumeration of changed parts of a file > XFS cannot do snapshots since it lacks metadata COW. XFS reflinking is primarily for space efficiency. -- 真実はいつも一つ！/ Always, there's only one truth!
