The reason we want to do this is to facilitate transparent huge page
support.
Right now PMD's cover 8MB of address space, and our huge page size is
4MB. The current transparent hugepage support is not able to handle
HPAGE_SIZE != PMD_SIZE.
So make PTE tables be sized to half of a page instead
The reason we want to do this is to facilitate transparent huge page
support.
Right now PMD's cover 8MB of address space, and our huge page size is
4MB. The current transparent hugepage support is not able to handle
HPAGE_SIZE != PMD_SIZE.
So make PTE tables be sized to half of a page instead
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