On Mon, Jun 15, 2020 at 02:57:01PM +0200, David Sterba wrote: > On Sun, Jun 14, 2020 at 09:50:17AM -0700, Linus Torvalds wrote: > > On Sun, Jun 14, 2020 at 4:56 AM David Sterba <dste...@suse.com> wrote: > > > > > > Reverts are not great, but under current circumstances I don't see > > > better options. > > > > Pulled. Are people discussing how to make iomap work for everybody? > > It's a bit sad if we can't have the major filesystems move away from > > the old buffer head interfaces to a common more modern one.. > > Yes, it's fixable and we definitely want to move to iomap. The direct to > buffered fallback would fix one of the problems, but this would also > mean that xfs would start doing that. Such change should be treated more > like a feature development than a bugfix, imposed by another filesystem, > and xfs people rightfully complained.
We can trivially key that off a flag at least for 5.8. I suspect the fallback actually is the right thing for XFS in the long run for that particular case.