Re: [PATCH v2 00/19] Free some vmemmap pages of hugetlb page

[Matthew Wilcox]

On Mon, Oct 26, 2020 at 10:50:55PM +0800, Muchun Song wrote:
> For tail pages, the value of compound_dtor is the same. So we can reuse

compound_dtor is only set on the first tail page.  compound_head is
what you mean here, I think.