Because we rely on cp --reflink=auto, we do not have good ext4 support. cp --reflink=auto performs a COW on btrfs/XFS, but ext4 falls back to a painful full copy.
A much better implementation for the COW behavior would be to use overlayfs on ext4, which would completely solve for the aforementioned problem.
Because we rely on
cp --reflink=auto, we do not have goodext4support.cp --reflink=autoperforms a COW on btrfs/XFS, butext4falls back to a painful full copy.A much better implementation for the COW behavior would be to use
overlayfsonext4, which would completely solve for the aforementioned problem.