On Thu, Jun 13, 2019 at 08:01:55PM +0000, Jason Gunthorpe wrote: > On Thu, Jun 13, 2019 at 11:43:24AM +0200, Christoph Hellwig wrote: > > All the mm/hmm.c code is better keyed off HMM_MIRROR. Also let nouveau > > depend on it instead of the mix of a dummy dependency symbol plus the > > actually selected one. Drop various odd dependencies, as the code is > > pretty portable. > > I don't really know, but I thought this needed the arch restriction > for the same reason get_user_pages has various unique arch specific > implementations (it does seem to have some open coded GUP like thing)? > > I was hoping we could do this after your common gup series? But sooner > is better too. Ok, I've added the arch and 64-bit dependency back in for now. It does not look proper to me, and is certainly underdocumented, but the whole pagetable walking code will need a lot of love eventually anyway, and the Kconfig stuff for it can be done properly then.
