On 2022/8/27 9:59, Muchun Song wrote: > > >> On Aug 26, 2022, at 17:24, Miaohe Lin <linmiaohe@xxxxxxxxxx> wrote: >> >> If CONFIG_SYSFS and CONFIG_SYSCTL are both undefined, hugetlb doesn't work >> now as there's no way to set max huge pages. Make sure at least one of the >> above configs is defined to make hugetlb works as expected. > > Right. I think the majority of the people are usually use /proc knob to > reserve HugeTLB pages than /sys fs. So I suggest to add a “depends on SYSCTL” > item. What’s your thoughts? It seems some functions, e.g. demotion, is exported via SYSFS instead of SYSCTL. So maybe "depends on SYSFS || SYSCTL", i.e. depends on (X86 || IA64 || SPARC64 || ARCH_SUPPORTS_HUGETLBFS || BROKEN) && (SYSFS || SYSCTL) will be more suitable? Thanks, Miaohe Lin
