On Sat, Jan 5, 2019 at 4:22 PM Linus Torvalds
[off-list ref] wrote:

But I think my patch to just rip out all that page lookup, and just
base it on the page table state has the fundamental advantage that it
gets rid of code. Maybe I should jst commit it, and see if anything
breaks? We do have options in case things break, and then we'd at
least know who cares (and perhaps a lot more information of _why_ they
care).

Slightly updated patch in case somebody wants to try things out.

Also, any comments about the pmd_trans_unstable() case?

                    Linus