On Thu, Apr 04, 2019 at 11:08:33PM +0000, Mike Kravetz wrote: > On 4/3/19 10:48 PM, Huang Shijie wrote: > > We have the pra.mapcount already, and there is no need to call > > the page_mapped() which may do some complicated computing > > for compound page. > > > > Signed-off-by: Huang Shijie <sjhuang@xxxxxxxxxxx> > > This looks good to me. I had to convince myself that there were no > issues if we were operating on a sub-page of a compound-page. However, > Kirill is the expert here and would know of any subtle issues I may have > overlooked. Looks good to me. Acked-by: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx> -- Kirill A. Shutemov