On Wed, Mar 20, 2024 at 03:40:45PM +0800, alexs@xxxxxxxxxx wrote: > @@ -1820,28 +1820,30 @@ static struct page *stable_tree_search(struct page *page) > struct rb_node *parent; > struct ksm_stable_node *stable_node, *stable_node_dup, *stable_node_any; > struct ksm_stable_node *page_node; > + struct folio *folio; > > - page_node = page_stable_node(page); > + folio = (struct folio *)page; These casts make me nervous. Remember that we're heading towards a future where struct page and struct folio don't point to the same memory, and part of that will be finding all these casts and removing them. Please, unless there's a good reason, just use page_folio().
