On Thu, Jul 09, 2020 at 11:11:11PM +0800, Alex Shi wrote: > Hi Kirill & Matthew, > > In the func call chain, from split_huge_page() to lru_add_page_tail(), > Seems tail pages are added to lru list at line 963, but in this scenario > the head page has no lru bit and isn't set the bit later. Why we do this? > or do I miss sth? I don't understand how we get to split_huge_page() with a page that's not on an LRU list. Both anonymous and page cache pages should be on an LRU list. What am I missing?
