free_unref_page  2907 arch/sparc/mm/init_64.c 		free_unref_page(page);
free_unref_page   568 include/linux/gfp.h extern void free_unref_page(struct page *page);
free_unref_page  4814 mm/page_alloc.c 		free_unref_page(page);
free_unref_page    81 mm/swap.c      	free_unref_page(page);