Merge tag 'linux-kselftest-5.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest

Pull Kselftest fixes from Shuah Khan:

- fixes to cgroup tests (Alex Shi)

- fix to userfaultfd compiler warning (Alakesh Haloi)

- fix to vm install to include test script to run the test (Naresh
Kamboju)

* tag 'linux-kselftest-5.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
selftests: vm: install test_vmalloc.sh for run_vmtests
userfaultfd: selftest: fix compiler warning
kselftest/cgroup: fix incorrect test_core skip
kselftest/cgroup: fix unexpected testing failure on test_core
kselftest/cgroup: fix unexpected testing failure on test_memcontrol

tools/testing/selftests/cgroup/test_core.c

···
 	char *parent = NULL, *child = NULL;
 
 	if (cg_read_strstr(root, "cgroup.controllers", "cpu") ||
-	    cg_read_strstr(root, "cgroup.subtree_control", "cpu")) {
+	    cg_write(root, "cgroup.subtree_control", "+cpu")) {
 		ret = KSFT_SKIP;
 		goto cleanup;
 	}
···
 
 	if (cg_find_unified_root(root, sizeof(root)))
 		ksft_exit_skip("cgroup v2 isn't mounted\n");
+
+	if (cg_read_strstr(root, "cgroup.subtree_control", "memory"))
+		if (cg_write(root, "cgroup.subtree_control", "+memory"))
+			ksft_exit_skip("Failed to set memory controller\n");
+
 	for (i = 0; i < ARRAY_SIZE(tests); i++) {
 		switch (tests[i].fn(root)) {
 		case KSFT_PASS:

tools/testing/selftests/cgroup/test_memcontrol.c

···
 	if (cg_read_strstr(root, "cgroup.controllers", "memory"))
 		ksft_exit_skip("memory controller isn't available\n");
 
+	if (cg_read_strstr(root, "cgroup.subtree_control", "memory"))
+		if (cg_write(root, "cgroup.subtree_control", "+memory"))
+			ksft_exit_skip("Failed to set memory controller\n");
+
 	for (i = 0; i < ARRAY_SIZE(tests); i++) {
 		switch (tests[i].fn(root)) {
 		case KSFT_PASS:

tools/testing/selftests/vm/Makefile

···
 
 TEST_PROGS := run_vmtests
 
+TEST_FILES := test_vmalloc.sh
+
 KSFT_KHDR_INSTALL := 1
 include ../lib.mk
 

tools/testing/selftests/vm/userfaultfd.c

···
 	fprintf(stderr, "Supported <test type>: anon, hugetlb, "
 		"hugetlb_shared, shmem\n\n");
 	fprintf(stderr, "Examples:\n\n");
-	fprintf(stderr, examples);
+	fprintf(stderr, "%s", examples);
 	exit(1);
 }