On 2/24/20 6:03 AM, Anshuman Khandual wrote: > This replaces all remaining open encodings with vma_is_anonymous(). > > Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> > Cc: linux-mm@xxxxxxxxx > Cc: linux-kernel@xxxxxxxxxxxxxxx > Signed-off-by: Anshuman Khandual <anshuman.khandual@xxxxxxx> Acked-by: Vlastimil Babka <vbabka@xxxxxxx > --- > mm/gup.c | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-) > > diff --git a/mm/gup.c b/mm/gup.c > index c8ffe2e61f03..58c8cbfeded6 100644 > --- a/mm/gup.c > +++ b/mm/gup.c > @@ -146,7 +146,8 @@ static struct page *no_page_table(struct vm_area_struct *vma, > * But we can only make this optimization where a hole would surely > * be zero-filled if handle_mm_fault() actually did handle it. > */ > - if ((flags & FOLL_DUMP) && (!vma->vm_ops || !vma->vm_ops->fault)) > + if ((flags & FOLL_DUMP) && > + (vma_is_anonymous(vma) || !vma->vm_ops->fault)) > return ERR_PTR(-EFAULT); > return NULL; > } >
