1 /* SPDX-License-Identifier: GPL-2.0 */
33 	char *parent, *child, *parent2 = NULL, *child2 = NULL;  in test_memcg_subtree_control()  local
38 	parent = cg_name(root, "memcg_test_0");  in test_memcg_subtree_control()
39 	child = cg_name(root, "memcg_test_0/memcg_test_1");  in test_memcg_subtree_control()
40 	if (!parent || !child)  in test_memcg_subtree_control()
43 	if (cg_create(parent))  in test_memcg_subtree_control()
46 	if (cg_write(parent, "cgroup.subtree_control", "+memory"))  in test_memcg_subtree_control()
49 	if (cg_create(child))  in test_memcg_subtree_control()
52 	if (cg_read_strstr(child, "cgroup.controllers", "memory"))  in test_memcg_subtree_control()
83 	cg_destroy(child);  in test_memcg_subtree_control()
85 	cg_destroy(parent);  in test_memcg_subtree_control()
87 	free(parent);  in test_memcg_subtree_control()
88 	free(child);  in test_memcg_subtree_control()
98 	int ret = -1;  in alloc_anon_50M_check()
127 	int ret = -1;  in alloc_pagecache_50M_check()
133 		return -1;  in alloc_pagecache_50M_check()
199 		return -1;  in alloc_pagecache_50M_noexit()
232 	for (limit = 10; limit > 0; limit--) {  in cg_test_proc_killed()
238 	return -1;  in cg_test_proc_killed()
273 	char *parent[3] = {NULL};  in test_memcg_protection()  local
284 	parent[0] = cg_name(root, "memcg_test_0");  in test_memcg_protection()
285 	if (!parent[0])  in test_memcg_protection()
288 	parent[1] = cg_name(parent[0], "memcg_test_1");  in test_memcg_protection()
289 	if (!parent[1])  in test_memcg_protection()
292 	parent[2] = cg_name(parent[0], "memcg_test_2");  in test_memcg_protection()
293 	if (!parent[2])  in test_memcg_protection()
296 	if (cg_create(parent[0]))  in test_memcg_protection()
299 	if (cg_read_long(parent[0], attribute)) {  in test_memcg_protection()
306 	if (cg_write(parent[0], "cgroup.subtree_control", "+memory"))  in test_memcg_protection()
309 	if (cg_write(parent[0], "memory.max", "200M"))  in test_memcg_protection()
312 	if (cg_write(parent[0], "memory.swap.max", "0"))  in test_memcg_protection()
315 	if (cg_create(parent[1]))  in test_memcg_protection()
318 	if (cg_write(parent[1], "cgroup.subtree_control", "+memory"))  in test_memcg_protection()
321 	if (cg_create(parent[2]))  in test_memcg_protection()
325 		children[i] = cg_name_indexed(parent[1], "child_memcg", i);  in test_memcg_protection()
339 	if (cg_write(parent[1],   attribute, "50M"))  in test_memcg_protection()
351 	while (!values_close(cg_read_long(parent[1], "memory.current"),  in test_memcg_protection()
358 	if (cg_run(parent[2], alloc_anon, (void *)MB(148)))  in test_memcg_protection()
361 	if (!values_close(cg_read_long(parent[1], "memory.current"), MB(50), 3))  in test_memcg_protection()
376 	rc = cg_run(parent[2], alloc_anon, (void *)MB(170));  in test_memcg_protection()
385 	if (!values_close(cg_read_long(parent[1], "memory.current"), MB(50), 3))  in test_memcg_protection()
412 	for (i = ARRAY_SIZE(children) - 1; i >= 0; i--) {  in test_memcg_protection()
420 	for (i = ARRAY_SIZE(parent) - 1; i >= 0; i--) {  in test_memcg_protection()
421 		if (!parent[i])  in test_memcg_protection()
424 		cg_destroy(parent[i]);  in test_memcg_protection()
425 		free(parent[i]);  in test_memcg_protection()
444 	int ret = -1;  in alloc_pagecache_max_30M()
451 		return -1;  in alloc_pagecache_max_30M()
455 		return -1;  in alloc_pagecache_max_30M()
529 		return -1;  in alloc_anon_mlock()
542 	int ret = KSFT_FAIL, pid, fd = -1;  in test_memcg_high_sync()
693 		if (retries--) {  in test_memcg_reclaim()
713 		to_reclaim = current - MB(30);  in test_memcg_reclaim()
737 		if (err == -EAGAIN && retries--)  in test_memcg_reclaim()
759 	int ret = -1;  in alloc_anon_50M_check_swap()
897 	int sk, client_sk, ctl_fd, yes = 1, ret = -1;  in tcp_server()
899 	close(srv_args->ctl[0]);  in tcp_server()
900 	ctl_fd = srv_args->ctl[1];  in tcp_server()
904 	saddr.sin6_port = htons(srv_args->port);  in tcp_server()
923 		ret = -1;  in tcp_server()
931 	ret = -1;  in tcp_server()
962 	sk = socket(ai->ai_family, ai->ai_socktype, ai->ai_protocol);  in tcp_client()
966 	ret = connect(sk, ai->ai_addr, ai->ai_addrlen);  in tcp_client()
971 	while (retries--) {  in tcp_client()
1018 	while (bind_retries--) {  in test_memcg_sock()
1074  * were propagated to the parent level.
1079 	char *parent, *child;  in test_memcg_oom_group_leaf_events()  local
1082 	parent = cg_name(root, "memcg_test_0");  in test_memcg_oom_group_leaf_events()
1083 	child = cg_name(root, "memcg_test_0/memcg_test_1");  in test_memcg_oom_group_leaf_events()
1085 	if (!parent || !child)  in test_memcg_oom_group_leaf_events()
1088 	if (cg_create(parent))  in test_memcg_oom_group_leaf_events()
1091 	if (cg_create(child))  in test_memcg_oom_group_leaf_events()
1094 	if (cg_write(parent, "cgroup.subtree_control", "+memory"))  in test_memcg_oom_group_leaf_events()
1097 	if (cg_write(child, "memory.max", "50M"))  in test_memcg_oom_group_leaf_events()
1100 	if (cg_write(child, "memory.swap.max", "0"))  in test_memcg_oom_group_leaf_events()
1103 	if (cg_write(child, "memory.oom.group", "1"))  in test_memcg_oom_group_leaf_events()
1106 	cg_run_nowait(parent, alloc_anon_noexit, (void *) MB(60));  in test_memcg_oom_group_leaf_events()
1107 	cg_run_nowait(child, alloc_anon_noexit, (void *) MB(1));  in test_memcg_oom_group_leaf_events()
1108 	cg_run_nowait(child, alloc_anon_noexit, (void *) MB(1));  in test_memcg_oom_group_leaf_events()
1109 	if (!cg_run(child, alloc_anon, (void *)MB(100)))  in test_memcg_oom_group_leaf_events()
1112 	if (cg_test_proc_killed(child))  in test_memcg_oom_group_leaf_events()
1115 	if (cg_read_key_long(child, "memory.events", "oom_kill ") <= 0)  in test_memcg_oom_group_leaf_events()
1119 			parent, "memory.events", "oom_kill ");  in test_memcg_oom_group_leaf_events()
1121 	 * If memory_localevents is not enabled (the default), the parent should  in test_memcg_oom_group_leaf_events()
1133 	if (child)  in test_memcg_oom_group_leaf_events()
1134 		cg_destroy(child);  in test_memcg_oom_group_leaf_events()
1135 	if (parent)  in test_memcg_oom_group_leaf_events()
1136 		cg_destroy(parent);  in test_memcg_oom_group_leaf_events()
1137 	free(child);  in test_memcg_oom_group_leaf_events()
1138 	free(parent);  in test_memcg_oom_group_leaf_events()
1146  * processes in the parent and leaf were killed.
1151 	char *parent, *child;  in test_memcg_oom_group_parent_events()  local
1153 	parent = cg_name(root, "memcg_test_0");  in test_memcg_oom_group_parent_events()
1154 	child = cg_name(root, "memcg_test_0/memcg_test_1");  in test_memcg_oom_group_parent_events()
1156 	if (!parent || !child)  in test_memcg_oom_group_parent_events()
1159 	if (cg_create(parent))  in test_memcg_oom_group_parent_events()
1162 	if (cg_create(child))  in test_memcg_oom_group_parent_events()
1165 	if (cg_write(parent, "memory.max", "80M"))  in test_memcg_oom_group_parent_events()
1168 	if (cg_write(parent, "memory.swap.max", "0"))  in test_memcg_oom_group_parent_events()
1171 	if (cg_write(parent, "memory.oom.group", "1"))  in test_memcg_oom_group_parent_events()
1174 	cg_run_nowait(parent, alloc_anon_noexit, (void *) MB(60));  in test_memcg_oom_group_parent_events()
1175 	cg_run_nowait(child, alloc_anon_noexit, (void *) MB(1));  in test_memcg_oom_group_parent_events()
1176 	cg_run_nowait(child, alloc_anon_noexit, (void *) MB(1));  in test_memcg_oom_group_parent_events()
1178 	if (!cg_run(child, alloc_anon, (void *)MB(100)))  in test_memcg_oom_group_parent_events()
1181 	if (cg_test_proc_killed(child))  in test_memcg_oom_group_parent_events()
1183 	if (cg_test_proc_killed(parent))  in test_memcg_oom_group_parent_events()
1189 	if (child)  in test_memcg_oom_group_parent_events()
1190 		cg_destroy(child);  in test_memcg_oom_group_parent_events()
1191 	if (parent)  in test_memcg_oom_group_parent_events()
1192 		cg_destroy(parent);  in test_memcg_oom_group_parent_events()
1193 	free(child);  in test_memcg_oom_group_parent_events()
1194 	free(parent);  in test_memcg_oom_group_parent_events()