Re: [PATCH v5 4/4] mm/hwpoison: introduce per-memory_block hwpoison counter counter

[David Hildenbrand]

>   /*
> @@ -2414,6 +2417,10 @@ int unpoison_memory(unsigned long pfn)
>   unlock_mutex:
>   	mutex_unlock(&mf_mutex);
>   	if (!ret || freeit) {
> +		/*
> +		 * TODO: per-memory_block counter might break when the page
> +		 * size to be unpoisoned is larger than a memory_block.
> +		 */

Hmm, but that happens easily e.g., with 1 GiB hugetlb page and 128 MiB 
memory section/block size. What would be the right thing to do here? The 
TODO should rather spell that out instead of just stating the problem.

--
Thanks,

David / dhildenb