Messages in this thread |  | | Date | Thu, 9 Jul 2020 16:50:02 +0100 | From | Matthew Wilcox <> | Subject | Re: a question of split_huge_page |
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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?
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