On Wed 03-04-19 10:41:35, David Hildenbrand wrote: > On 03.04.19 10:37, Michal Hocko wrote: [...] > > That being said it should be the caller of the hotplug code to tell > > the vmemmap allocation strategy. For starter, I would only pack vmemmaps > > for "regular" kernel zone memory. Movable zones should be more careful. > > We can always re-evaluate later when there is a strong demand for huge > > pages on movable zones but this is not the case now because those pages > > are not really movable in practice. > > Remains the issue with potential different user trying to remove memory > it didn't add in some other granularity. We then really have to identify > and isolate that case. Can you give an example of a sensible usecase that would require this? -- Michal Hocko SUSE Labs
