1 // SPDX-License-Identifier: GPL-2.0
28 void print_cachestat(struct cachestat *cs)  in print_cachestat()  argument
32 	cs->nr_cache, cs->nr_dirty, cs->nr_writeback,  in print_cachestat()
33 	cs->nr_evicted, cs->nr_recently_evicted);  in print_cachestat()
51 		goto out;  in write_exactly()
73 		remained -= read_len;  in write_exactly()
89 		remained -= write_len;  in write_exactly()
98 out:  in write_exactly()
131 	struct cachestat cs;  in test_cachestat()  local
136 	if (fd == -1) {  in test_cachestat()
139 		goto out;  in test_cachestat()
152 	syscall_ret = syscall(__NR_cachestat, fd, &cs_range, &cs, 0);  in test_cachestat()
157 		ksft_print_msg("Cachestat returned non-zero.\n");  in test_cachestat()
162 		print_cachestat(&cs);  in test_cachestat()
165 			if (cs.nr_cache + cs.nr_evicted != num_pages) {  in test_cachestat()
180 			syscall_ret = syscall(__NR_cachestat, fd, &cs_range, &cs, 0);  in test_cachestat()
186 				print_cachestat(&cs);  in test_cachestat()
188 				if (cs.nr_dirty) {  in test_cachestat()
194 				ksft_print_msg("Cachestat (after fsync) returned non-zero.\n");  in test_cachestat()
206 out:  in test_cachestat()
230 	struct cachestat cs;  in run_cachestat_test()  local
243 		goto out;  in run_cachestat_test()
276 	syscall_ret = syscall(__NR_cachestat, fd, &cs_range, &cs, 0);  in run_cachestat_test()
279 		ksft_print_msg("Cachestat returned non-zero.\n");  in run_cachestat_test()
283 		print_cachestat(&cs);  in run_cachestat_test()
284 		if (cs.nr_cache + cs.nr_evicted != num_pages) {  in run_cachestat_test()
293 out:  in run_cachestat_test()
303 	ret = syscall(__NR_cachestat, -1, NULL, NULL, 0);  in main()
304 	if (ret == -1 && errno == ENOSYS)  in main()
309 	if (ret == -1 && errno == EBADF) {  in main()