1324 	VM_BUG_ON_VMA(!vma->anon_vma, vma);  in do_huge_pmd_wp_page()
1536 	struct anon_vma *anon_vma = NULL;  in do_huge_pmd_numa_page()  local
1606 	anon_vma = page_lock_anon_vma_read(page);  in do_huge_pmd_numa_page()
1618 	if (unlikely(!anon_vma)) {  in do_huge_pmd_numa_page()
1679 	if (anon_vma)  in do_huge_pmd_numa_page()
1680 		page_unlock_anon_vma_read(anon_vma);  in do_huge_pmd_numa_page()
2698 	struct anon_vma *anon_vma = NULL;  in split_huge_page_to_list()  local
2721 		anon_vma = page_get_anon_vma(head);  in split_huge_page_to_list()
2722 		if (!anon_vma) {  in split_huge_page_to_list()
2728 		anon_vma_lock_write(anon_vma);  in split_huge_page_to_list()
2738 		anon_vma = NULL;  in split_huge_page_to_list()
2825 	if (anon_vma) {  in split_huge_page_to_list()
2826 		anon_vma_unlock_write(anon_vma);  in split_huge_page_to_list()
2827 		put_anon_vma(anon_vma);  in split_huge_page_to_list()