On 12/17/20 4:12 AM, Muchun Song wrote: > The HUGETLB_PAGE_FREE_VMEMMAP option is used to enable the freeing > of unnecessary vmemmap associated with HugeTLB pages. The config > option is introduced early so that supporting code can be written > to depend on the option. The initial version of the code only > provides support for x86-64. > > Like other code which frees vmemmap, this config option depends on > HAVE_BOOTMEM_INFO_NODE. The routine register_page_bootmem_info() is > used to register bootmem info. Therefore, make sure > register_page_bootmem_info is enabled if HUGETLB_PAGE_FREE_VMEMMAP > is defined. > > Signed-off-by: Muchun Song <songmuchun@xxxxxxxxxxxxx> > --- > arch/x86/mm/init_64.c | 2 +- > fs/Kconfig | 18 ++++++++++++++++++ > 2 files changed, 19 insertions(+), 1 deletion(-) Thanks for updating, Acked-by: Mike Kravetz <mike.kravetz@xxxxxxxxxx> -- Mike Kravetz
