1278 	VM_BUG_ON_VMA(!vma->anon_vma, vma);  in do_huge_pmd_wp_page()
1414 	struct anon_vma *anon_vma = NULL;  in do_huge_pmd_numa_page()  local
1484 	anon_vma = page_lock_anon_vma_read(page, NULL);  in do_huge_pmd_numa_page()
1496 	if (unlikely(!anon_vma)) {  in do_huge_pmd_numa_page()
1557 	if (anon_vma)  in do_huge_pmd_numa_page()
1558 		page_unlock_anon_vma_read(anon_vma);  in do_huge_pmd_numa_page()
2665 	struct anon_vma *anon_vma = NULL;  in split_huge_page_to_list()  local
2687 		anon_vma = page_get_anon_vma(head);  in split_huge_page_to_list()
2688 		if (!anon_vma) {  in split_huge_page_to_list()
2694 		anon_vma_lock_write(anon_vma);  in split_huge_page_to_list()
2704 		anon_vma = NULL;  in split_huge_page_to_list()
2771 	if (anon_vma) {  in split_huge_page_to_list()
2772 		anon_vma_unlock_write(anon_vma);  in split_huge_page_to_list()
2773 		put_anon_vma(anon_vma);  in split_huge_page_to_list()