uml: 64-bit tlb fixes

Some 64-bit tlb fixes -
	moved pmd_page_vaddr to pgtable.h since it's the same for both
2-level and 3-level page tables
	fixed a bogus cast on pud_page_vaddr
	made the address checking in update_*_range more careful

Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 3 insertions, 0 deletions

diff --git a/include/asm-um/pgtable.h b/include/asm-um/pgtable.h
index fb477774a2e9..4102b443e925 100644
--- a/include/asm-um/pgtable.h
+++ b/include/asm-um/pgtable.h
@@ -308,6 +308,9 @@ static inline pte_t pte_modify(pte_t pte, pgprot_t newprot)
 #define pmd_page_vaddr(pmd) ((unsigned long) __va(pmd_val(pmd) & PAGE_MASK))
 #define pmd_index(address) (((address) >> PMD_SHIFT) & (PTRS_PER_PMD-1))
 
+#define pmd_page_vaddr(pmd) \
+        ((unsigned long) __va(pmd_val(pmd) & PAGE_MASK))
+
 /*
  * the pte page can be thought of an array like this: pte_t[PTRS_PER_PTE]
  *