On Wed, Mar 11, 2020 at 03:35:05PM -0300, Jason Gunthorpe wrote: > From: Jason Gunthorpe <jgg@xxxxxxxxxxxx> > > hmm_range_fault() should never return 0 if the caller requested a valid > page, but the pfns output for that page would be HMM_PFN_ERROR. > > hmm_pte_need_fault() must always be called before setting HMM_PFN_ERROR to > detect if the page is in faulting mode or not. > > Fix two cases in hmm_vma_walk_pmd() and reorganize some of the duplicated > code. Looks good, Reviewed-by: Christoph Hellwig <hch@xxxxxx>
