mm: thp: fix the pmd_clear() arguments in pmdp_get_and_clear()

The CONFIG_TRANSPARENT_HUGEPAGE implementation of pmdp_get_and_clear()
calls pmd_clear() with 3 arguments instead of 1.

This happens only for !__HAVE_ARCH_PMDP_GET_AND_CLEAR which doesn't seem
to happen because x86 defines this and it uses pmd_update.

[[email protected]: changelog addition]
Signed-off-by: Catalin Marinas <[email protected]>
Signed-off-by: Steve Capper <[email protected]>
Signed-off-by: Will Deacon <[email protected]>
Cc: Arnd Bergmann <[email protected]>
Reviewed-by: Michal Hocko <[email protected]>
Reviewed-by: Kirill A. Shutemov <[email protected]>
Cc: Gerald Schaefer <[email protected]>
Reviewed-by: Andrea Arcangeli <[email protected]>
Cc: Chris Metcalf <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

include/asm-generic/pgtable.h

@@ -87,7 +87,7 @@ static inline pmd_t pmdp_get_and_clear(struct mm_struct *mm,
 				       pmd_t *pmdp)
 {
 	pmd_t pmd = *pmdp;
-	pmd_clear(mm, address, pmdp);
+	pmd_clear(pmdp);
 	return pmd;
 }
 #endif /* CONFIG_TRANSPARENT_HUGEPAGE */