pmd_sect
#define pmd_leaf(pmd) pmd_sect(pmd)
if (pmd_sect(pmd)) {
WARN_ON(!pmd_present(pmd) || !pmd_table(pmd) || pmd_sect(pmd));
return pmd_sect(READ_ONCE(*pmdp));
if (!pmd_sect(READ_ONCE(*pmdp)))
BUG_ON(pmd_sect(pmd));
if (pmd_sect(pmd))
if (pmd_sect(val)) {