expected_mapping  698 mm/ksm.c       	void *expected_mapping;
expected_mapping  701 mm/ksm.c       	expected_mapping = (void *)((unsigned long)stable_node |
expected_mapping  706 mm/ksm.c       	if (READ_ONCE(page->mapping) != expected_mapping)
expected_mapping  733 mm/ksm.c       	if (READ_ONCE(page->mapping) != expected_mapping) {
expected_mapping  747 mm/ksm.c       		if (READ_ONCE(page->mapping) != expected_mapping) {