On Mon, May 11, 2026 at 04:05:33PM +0200, David Hildenbrand (Arm) wrote:
> We removed the last user of NODE_INFO in commit 119c31caa59e ("mm/sparse:
> remove !CONFIG_SPARSEMEM_VMEMMAP leftovers for CONFIG_MEMORY_HOTPLUG").
>
> But it really was never used it besides for safety-checks ever since it was
> introduced in commit 04753278769f ("memory hotplug: register section/node
> id to free"), where we had the comment:
>
> 5) The node information like pgdat has similar issues. But, this
> will be able to be solved too by this.
> (Not implemented yet, but, remembering node id in the pages.)
>
> Of course, that never happened, and we are not planning on freeing the
> node data (pgdat/pglist_data), during memory hotunplug.
>
> So let's just stop marking the pgdat as NODE_INFO.
>
> Signed-off-by: David Hildenbrand (Arm) <[email protected]>
Acked-by: Oscar Salvador <[email protected]>
--
Oscar Salvador
SUSE Labs
