Hi: On 2021/2/5 16:22, Oscar Salvador wrote: > On Fri, Feb 05, 2021 at 03:29:43PM +0800, Miaohe Lin wrote: >>> + if (likely(vmemmap_pages > RESERVE_VMEMMAP_NR)) >>> + h->nr_free_vmemmap_pages = vmemmap_pages - RESERVE_VMEMMAP_NR; >> >> Not a problem. Should we set h->nr_free_vmemmap_pages to 0 in 'else' case explicitly ? > > No, hstate fields are already zeroed. I know hstate fields are already zeroed. What I mean is should we set nr_free_vmemmap_pages to 0 _explicitly_ like nr_huge_pages and free_huge_pages in hugetlb_add_hstate() ? But this is really trival. Many thanks for reply. > >