170 	char *one_page;  in split_pmd_thp()  local
175 	one_page = memalign(pmd_pagesize, len);  in split_pmd_thp()
177 	if (!one_page) {  in split_pmd_thp()
182 	madvise(one_page, len, MADV_HUGEPAGE);  in split_pmd_thp()
185 		one_page[i] = (char)i;  in split_pmd_thp()
187 	thp_size = check_huge(one_page);  in split_pmd_thp()
194 	write_debugfs(PID_FMT, getpid(), (uint64_t)one_page,  in split_pmd_thp()
195 		(uint64_t)one_page + len);  in split_pmd_thp()
198 		if (one_page[i] != (char)i) {  in split_pmd_thp()
204 	thp_size = check_huge(one_page);  in split_pmd_thp()
211 	free(one_page);  in split_pmd_thp()
216 	char *one_page, *pte_mapped, *pte_mapped2;  in split_pte_mapped_thp()  local
244 	one_page = mmap((void *)(1UL << 30), len, PROT_READ | PROT_WRITE,  in split_pte_mapped_thp()
247 	madvise(one_page, len, MADV_HUGEPAGE);  in split_pte_mapped_thp()
250 		one_page[i] = (char)i;  in split_pte_mapped_thp()
252 	thp_size = check_huge(one_page);  in split_pte_mapped_thp()
259 	pte_mapped = mremap(one_page, pagesize, pagesize, MREMAP_MAYMOVE);  in split_pte_mapped_thp()
263 		pte_mapped2 = mremap(one_page + pmd_pagesize * i + pagesize * i,  in split_pte_mapped_thp()
307 	munmap(one_page, len);  in split_pte_mapped_thp()