On 01.03.19 23:12, Kirill A. Shutemov wrote: > On Wed, Feb 27, 2019 at 07:54:22PM +0100, Helge Deller wrote: >> On 27.02.19 18:05, Steven Price wrote: >>> walk_page_range() is going to be allowed to walk page tables other than >>> those of user space. For this it needs to know when it has reached a >>> 'leaf' entry in the page tables. This information is provided by the >>> p?d_large() functions/macros. >>> >>> For parisc, we don't support large pages, so add stubs returning 0. >> >> We do support huge pages on parisc, but not yet on those levels. > > Just curious, what level do parisc supports huge pages on? > AFAICS, it can have 2- or 3- level paging and the patch defines helpers > for two level: pgd and pmd. Hm? You are correct. My comment was misleading and meant to say that we do support generic huge pages for applications. Helge
