set_bit(PG_highmem, &page->flags); 
void map_high_region(unsigned long start_pfn, unsigned long end_pfn){	unsigned long tmp;#ifdef CONFIG_DEBUG_HIGHMEM	printk("mapping high region %08lx - %08lx\n", start_pfn, end_pfn);#endif	for (tmp = start_pfn; tmp < end_pfn; tmp++) {		struct page *page = pfn_to_page(tmp);		ClearPageReserved(page);		set_bit(PG_highmem, &page->flags);		set_page_count(page, 1);		__free_page(page);		totalhigh_pages++;	}}
10457	/local/tlutelli/issta_data/temp/c/2005_temp/2005/10457/cbe37d093707762fc0abb280781e6a82a9d8d568/init.c/clean/arch/sparc/mm/init.c