Martin Schwidefsky 89d6fff074 mm: introduce mm_[p4d|pud|pmd]_folded ...

[ Upstream commit 1071fc5779 ]

Add three architecture overrideable functions to test if the
p4d, pud, or pmd layer of a page table is folded or not.

Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2018-12-29 13:37:58 +01:00

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