On Tue 16-02-21 09:13:09, David Hildenbrand wrote: > On 15.02.21 20:02, Michal Hocko wrote: > > Would it be feasible to reused parts of the freed page in > > the worst case? > > As already discussed, this is only possible when the huge page does not > reside on ZONE_MOVABLE/CMA. Right. But usually this is not the case so it would be at least something. > In addition, we can no longer form a huge page at that memory location ever. Yes, that's why I am saying in the worst case. E.g. when dissolving is really necessary like in hwpoison case. Maybe we are really far from needing something like that. I just wanted to mention this option and I was not aware this has been discussed previously. -- Michal Hocko SUSE Labs
