> There is also a
>
> low_pfn += pageblock_nr_pages;
> low_pfn = ALIGN(low_pfn, pageblock_nr_pages) - 1;
>
> that looks suspicious for similar reasons. Maybe
>
> low_pfn = ALIGN(low_pfn + 1, pageblock_nr_pages) - 1;
>
> instead? Although that *can* result in the same low_pfn in the end, so
> maybe that one was correct after all? I just did some grepping, no
> actual semantic analysis...
Here is a totally obscure version:
low_pfn |= pageblock_nr_pages - 1;
It simply moves to the very end of the block, which seems to be what
was intended.
Henrik
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