On Tue, Sep 22, 2020 at 12:21:44PM +0100, Matthew Wilcox wrote: > Actually, vfree() will work today; I cc'd you on a documentation update > to make it clear that this is permitted. vfree calls __free_pages, the i915 and a lot of other code calls put_page. They are mostly the same, but not quite and everytime I look into that mess I'm more confused than before. Can someone in the know write sensible documentation on when to use __free_page(s) vs put_page?
