On 4/5/26 14:51, Muchun Song wrote:
Overview:
This patch series generalizes the HugeTLB Vmemmap Optimization (HVO)
into a generic vmemmap optimization framework that can be used by both
HugeTLB and DAX.
Background:
Currently, the vmemmap optimization feature is highly coupled with
HugeTLB. However, DAX also has similar requirements for optimizing vmemmap
pages to save memory.
guest_memfd also wants to make use of this (e.g., through folios
allocated from hugetlb, where it might have to undo HVO).
CCing Ackerley.
--
Cheers,
David
