page_trans_huge_mapcount  740 include/linux/mm.h int page_trans_huge_mapcount(struct page *page, int *total_mapcount);
page_trans_huge_mapcount  603 include/linux/swap.h 	(page_trans_huge_mapcount(page, total_map_swapcount) == 1)
page_trans_huge_mapcount 1595 mm/swapfile.c  		mapcount = page_trans_huge_mapcount(page, total_mapcount);