On Fri, Jan 15, 2021 at 12:05:29PM -0800, Mike Kravetz wrote: > I went back and took a closer look. Migration is the reason the existing > page_huge_active interfaces were introduced. And, the only use of the > page_huge_active check is to determine if a page can be migrated. So, > I think 'Migratable' may be the most suitable name. Ok, I did not know that. Let us stick with 'Migratable' then. > To address the concern about not all hugetlb sizes are migratable, we can > just make a check before setting the flag. This should even help in the > migration/offline paths as we will know sooner if the page can be > migrated or not. This sounds like a good idea to me. > We can address naming in the 'migrating free hugetlb pages' issue when > that code is written. Sure, it was just a suggestion as when I though about that something like 'InUse' or 'Active' made more sense to me, but your point is valid. Sorry for the confusion. About that alloc_contig_range topic, I would like to take a look unless someone is already on it or about to be. Thanks Mike for the time ;-) -- Oscar Salvador SUSE L3
