Peter Watkins wrote:
> There are a number of changes required to support larger page sizes, but
> this one I thought worth sending up right away.
> The code in pgtable-64.h assumes TASK_SIZE is always bigger than a first
> level PGDIR_SIZE. This is not the case for 64K pages, where task size is
> 40 bits (1TB) and a pgd entry can map 42 bits. This leads to
> USER_PTRS_PER_PGD being zero for 64K pages.
> If there is interest in other changes for 64K pages, I can send more.
Please do so. :-)