linux-master/mm/migrate.c

186 	DEFINE_FOLIO_VMA_WALK(pvmw, old, vma, addr, PVMW_SYNC | PVMW_MIGRATION);
188 	while (page_vma_mapped_walk(&pvmw)) {
198 			idx = linear_page_index(vma, pvmw.address) - pvmw.pgoff;
203 		if (!pvmw.pte) {
206 			remove_migration_pmd(&pvmw, new);
213 		old_pte = ptep_get(pvmw.pte);
255 				hugetlb_add_anon_rmap(folio, vma, pvmw.address,
259 			set_huge_pte_at(vma->vm_mm, pvmw.address, pvmw.pte, pte,
266 							pvmw.address, rmap_flags);
269 			set_pte_at(vma->vm_mm, pvmw.address, pvmw.pte, pte);
274 		trace_remove_migration_pte(pvmw.address, pte_val(pte),
278 		update_mmu_cache(vma, pvmw.address, pvmw.pte);