On 4/14/26 12:22, Michael S. Tsirkin wrote: > On Tue, Apr 14, 2026 at 11:18:02AM +0200, David Hildenbrand (Arm) wrote: >> On 4/13/26 22:35, Michael S. Tsirkin wrote: >>> >>> >>> So here's an only alternative I see: a page flag for when page is in >>> buddy and a new "prezero" bool that we have to propagate everywhere >>> else. This is a patch on top. More elegant? Please tell me if you prefer >>> that. >>> If yes I will squash it into the appropriate patches. >> >> I'd be interesting to know how this would look without the GFP flag, >> when we don't have to leak any of this out of the buddy. >> >> -- >> Cheers, >> >> David > > But the zeroing takes place outside of the buddy now, it's more > "reporting" than "leaking".
Exposing some buddy internals using questionable GFP flags, however you want to call that hack ;) > > You mean, moving the zeroing into buddy? Yes. Such that it doesn't really matter how we maintain this information internally. A page flag is probably still nicer for that purpose. -- Cheers, David
