Re: [PATCH 10/10] hugetlb: make hugetlb selects SYSFS if !SYSCTL

[Miaohe Lin]

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