Re: [PATCHv3 2/4] x86/64/mm: Make SPARSEMEM_VMEMMAP the only memory model

[H. Peter Anvin]

On May 16, 2025 8:46:07 AM PDT, Dave Hansen <dave.hansen@xxxxxxxxx> wrote:
>On 5/16/25 08:35, Ingo Molnar wrote:
>>   .config.opensuse.default:    CONFIG_SPARSEMEM_VMEMMAP_ENABLE=y
>>   .config.ubuntu.localinstall: CONFIG_SPARSEMEM_VMEMMAP_ENABLE=y
>>   .config.fedora.generic:      CONFIG_SPARSEMEM_VMEMMAP_ENABLE=y
>>   .config.rhel.generic:        CONFIG_SPARSEMEM_VMEMMAP_ENABLE=y
>
>That reminds me...
>
>Does everybody keep their own local copies of these configs in their
>environment? I do, and I refresh them periodically from the distros. I
>assume everybody else is doing something similar.
>
>Is there a better way?

What I do is keep a set of minimal configs which are the deltas from the default.