[PATCH v2] mm: alloc_pages_bulk: remove assumption of populating only NULL elements

[NeilBrown]

On Wed, 05 Mar 2025, Yunsheng Lin wrote:
> 
> For the existing btrfs and sunrpc case, I am agreed that there
> might be valid use cases too, we just need to discuss how to
> meet the requirements of different use cases using simpler, more
> unified and effective APIs.

We don't need "more unified".

If there are genuinely two different use cases with clearly different
needs - even if only slightly different - then it is acceptable to have
two different interfaces.  Be sure to choose names which emphasise the
differences.

Thanks,
NeilBrown