selftests/mm/gup_test.c

52 	struct gup_test gup = *(struct gup_test *)data;
59 			gup.size = size;
60 			status = ioctl(gup_fd, cmd, &gup);
66 				       cmd_to_str(cmd), gup.get_delta_usec,
67 				       gup.put_delta_usec);
68 			if (gup.size != size)
69 				ksft_print_msg(", truncated (size: %lld)", gup.size);
74 		gup.size = size;
75 		status = ioctl(gup_fd, cmd, &gup);
81 		if (gup.size != size)
82 			ksft_print_msg("Truncated (size: %lld)\n", gup.size);
93 	struct gup_test gup = { 0 };
120 			gup.which_pages[0] = 1;
124 			gup.test_flags |= GUP_TEST_FLAG_DUMP_PAGES_USE_PIN;
128 			gup.gup_flags = strtol(optarg, 0, 0);
171 			/* fault pages in gup, do not fault in userland */
197 			gup.which_pages[extra_arg_count] = page_index;
210 	gup.nr_pages_per_call = nr_pages;
212 		gup.gup_flags |= FOLL_WRITE;
237 	gup.addr = (unsigned long)p;
251 		gup.gup_flags |= FOLL_TOUCH;
253 		for (; (unsigned long)p < gup.addr + size; p += psize())
260 		ret = pthread_create(&tid[i], NULL, gup_thread, &gup);