Re: [PATCH v4 0/2] mm/memory hotplug/unplug: Optimize zone contiguous check when changing pfn range

[David Hildenbrand (Arm)]

On 4/21/26 14:55, Yuan Liu wrote:
> This series cleans up the overlap memory map init check and
> optimizes zone contiguous check when changing pfn range.
> 
> In addition to providing a significant improvement for VM hotplug
> (see the second patch for reference), it brings benefits for CXL
> hotplug as well. The link is as follows
> https://lore.kernel.org/all/20260409023552.GA2807@AE/
> 
> v3 link:
>     https://lore.kernel.org/all/20260408031615.1831922-1-yuan1.liu@xxxxxxxxx/
> 
> v4 changes:
>     Add a new patch for clean up overlap memory map init check

Didn't you also wanted to add a patch to improve shrink_zone_span to check both
sides of the PAGES_PER_SUBSECTION block for fitting nid+zid?

-- 
Cheers,

David