while (page_vma_mapped_walk(&pvmw)) {
addr = pvmw.address;
if (pvmw.pte) {
- referenced = ptep_clear_young_notify(vma, addr,
- pvmw.pte);
+ /*
+ * For PTE-mapped THP, one sub page is referenced,
+ * the whole THP is referenced.
+ */
+ if (ptep_clear_young_notify(vma, addr, pvmw.pte))
+ referenced = true;
} else if (IS_ENABLED(CONFIG_TRANSPARENT_HUGEPAGE)) {
- referenced = pmdp_clear_young_notify(vma, addr,
- pvmw.pmd);
+ if (pmdp_clear_young_notify(vma, addr, pvmw.pmd))
+ referenced = true;
} else {
/* unexpected pmd-mapped page? */
WARN_ON_ONCE(1);