On Thu, Jul 11, 2024 at 07:27:27PM +0200, David Hildenbrand wrote: > > PG_owner_priv_1 maps to PG_swapcache? :) > > Maybe the combination !swapbacked && swapcache could be used to indicate > such folios. (we will never set swapbacked) > > But likely we have to be a bit careful here. We don't want > folio_test_swapcache() to return for folios that ... are not in the > swapcache. I was thinking that too, but I'm afraid it's going to be another whack-a-mole nightmare. Even for things like task_mmu in procfs that show stats, that's going to be wonky. Any other flags we can overload that aren't going to be already used in our case? Jason
