On Mon, Oct 26, 2020 at 11:53 PM Matthew Wilcox <willy@xxxxxxxxxxxxx> wrote: > > On Mon, Oct 26, 2020 at 10:50:55PM +0800, Muchun Song wrote: > > For tail pages, the value of compound_dtor is the same. So we can reuse > > compound_dtor is only set on the first tail page. compound_head is > what you mean here, I think. > Yes, that's right. Sorry for the confusion. Thanks. -- Yours, Muchun