Matthew Wilcox <wi...@infradead.org> wrote:
> > +void end_page_private_2(struct page *page)
> > +{
> > + page = compound_head(page);
> > + VM_BUG_ON_PAGE(!PagePrivate2(page), page);
> > + clear_bit_unlock(PG_private_2, &page->flags);
> > + wake_up_page_bit(page, PG_private_2);
>
> ... but when we try to end on a tail, we actually wake up the head ...Question is, should I remove compound_head() here or add it into the other functions? David
