On Sat, Mar 23, 2024 at 11:16:43AM -0400, peterx@xxxxxxxxxx wrote: > From: Peter Xu <peterx@xxxxxxxxxx> > > The comment in the code explains the reasons. We took a different approach > comparing to pmd_pfn() by providing a fallback function. > > Another option is to provide some lower level config options (compare to > HUGETLB_PAGE or THP) to identify which layer an arch can support for such > huge mappings. However that can be an overkill. > > Cc: Mike Rapoport (IBM) <rppt@xxxxxxxxxx> > Cc: Matthew Wilcox <willy@xxxxxxxxxxxxx> > Reported-by: kernel test robot <lkp@xxxxxxxxx> > Closes: https://lore.kernel.org/oe-kbuild-all/202403231529.HRev1zcD-lkp@xxxxxxxxx/ > Signed-off-by: Peter Xu <peterx@xxxxxxxxxx> > --- Reviewed-by: Jason Gunthorpe <jgg@xxxxxxxxxx> Jason
