try_to_merge_with_ksm_page 1320 mm/ksm.c err = try_to_merge_with_ksm_page(rmap_item, page, NULL); try_to_merge_with_ksm_page 1322 mm/ksm.c err = try_to_merge_with_ksm_page(tree_rmap_item, try_to_merge_with_ksm_page 2079 mm/ksm.c err = try_to_merge_with_ksm_page(rmap_item, page, kpage);