1 // SPDX-License-Identifier: GPL-2.0
50 	/* If present (63th bit), PFN is at bit 0 -- 54. */  in pagemap_get_pfn()
53 	return -1ul;  in pagemap_get_pfn()
65 	close(fd);  in clear_softdirty()
86 	if (fd == -1)  in read_pmd_pagesize()
91 		close(fd);  in read_pmd_pagesize()
95 	close(fd);  in read_pmd_pagesize()
103 	uint64_t thp = -1;  in __check_huge()
109 	ret = snprintf(addr_pattern, MAX_LINE_LENGTH, "%08lx-",  in __check_huge()
160 		 MAP_NORESERVE | MAP_PRIVATE, -1, 0) != ptr)  in allocate_transhuge()
170 		  (uintptr_t)ptr >> (pshift() - 3)) != sizeof(ent))  in allocate_transhuge()
175 	    !(PAGEMAP_PFN(ent[0]) & ((1 << (HPAGE_SHIFT - pshift())) - 1)))  in allocate_transhuge()
178 	return -1;  in allocate_transhuge()
216 		if (entry->d_type != DT_DIR)  in detect_hugetlb_page_sizes()
218 		if (sscanf(entry->d_name, "hugepages-%zukB", &kb) != 1)  in detect_hugetlb_page_sizes()
228 /* If `ioctls' non-NULL, the allowed ioctls will be returned into the var */
243 	uffdio_register.range.start = (unsigned long)addr;  in uffd_register_with_ioctls()
244 	uffdio_register.range.len = len;  in uffd_register_with_ioctls()
247 	if (ioctl(uffd, UFFDIO_REGISTER, &uffdio_register) == -1)  in uffd_register_with_ioctls()
248 		ret = -errno;  in uffd_register_with_ioctls()
264 	struct uffdio_range range = { .start = (uintptr_t)addr, .len = len };  in uffd_unregister()  local
267 	if (ioctl(uffd, UFFDIO_UNREGISTER, &range) == -1)  in uffd_unregister()
268 		ret = -errno;  in uffd_unregister()