Re: [PATCH 5/8] mm/bootmem_info: stop marking the pgdat as NODE_INFO

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