1 // SPDX-License-Identifier: GPL-2.0
38 			"/something-non-existent-with-a-long-name-%64lu-%d",  in alloc_dcache()
101 	int ret = -1;  in alloc_kmem_smp()
105 		return -1;  in alloc_kmem_smp()
111 			return -1;  in alloc_kmem_smp()
125 static int cg_run_in_subcgroups(const char *parent,  in cg_run_in_subcgroups()  argument
129 	char *child;  in cg_run_in_subcgroups()  local
133 		child = cg_name_indexed(parent, "child", i);  in cg_run_in_subcgroups()
134 		if (!child)  in cg_run_in_subcgroups()
135 			return -1;  in cg_run_in_subcgroups()
137 		if (cg_create(child)) {  in cg_run_in_subcgroups()
138 			cg_destroy(child);  in cg_run_in_subcgroups()
139 			free(child);  in cg_run_in_subcgroups()
140 			return -1;  in cg_run_in_subcgroups()
143 		if (cg_run(child, fn, NULL)) {  in cg_run_in_subcgroups()
144 			cg_destroy(child);  in cg_run_in_subcgroups()
145 			free(child);  in cg_run_in_subcgroups()
146 			return -1;  in cg_run_in_subcgroups()
149 		cg_destroy(child);  in cg_run_in_subcgroups()
150 		free(child);  in cg_run_in_subcgroups()
159  * threads. Then it checks the sanity of numbers on the parent level:
167 	char *parent;  in test_kmem_memcg_deletion()  local
169 	parent = cg_name(root, "kmem_memcg_deletion_test");  in test_kmem_memcg_deletion()
170 	if (!parent)  in test_kmem_memcg_deletion()
173 	if (cg_create(parent))  in test_kmem_memcg_deletion()
176 	if (cg_write(parent, "cgroup.subtree_control", "+memory"))  in test_kmem_memcg_deletion()
179 	if (cg_run_in_subcgroups(parent, alloc_kmem_smp, NULL, 100))  in test_kmem_memcg_deletion()
182 	current = cg_read_long(parent, "memory.current");  in test_kmem_memcg_deletion()
183 	slab = cg_read_key_long(parent, "memory.stat", "slab ");  in test_kmem_memcg_deletion()
184 	anon = cg_read_key_long(parent, "memory.stat", "anon ");  in test_kmem_memcg_deletion()
185 	file = cg_read_key_long(parent, "memory.stat", "file ");  in test_kmem_memcg_deletion()
186 	kernel_stack = cg_read_key_long(parent, "memory.stat", "kernel_stack ");  in test_kmem_memcg_deletion()
192 	if (abs(sum - current) < MAX_VMSTAT_ERROR) {  in test_kmem_memcg_deletion()
204 	cg_destroy(parent);  in test_kmem_memcg_deletion()
205 	free(parent);  in test_kmem_memcg_deletion()
248 	int ret = -1;  in spawn_1000_threads()
252 		return -1;  in spawn_1000_threads()
258 			return(-1);  in spawn_1000_threads()
298  * This test sequentionally creates 30 child cgroups, allocates some
300  * that the number of dying cgroups on the parent level is 0.
305 	char *parent;  in test_kmem_dead_cgroups()  local
309 	parent = cg_name(root, "kmem_dead_cgroups_test");  in test_kmem_dead_cgroups()
310 	if (!parent)  in test_kmem_dead_cgroups()
313 	if (cg_create(parent))  in test_kmem_dead_cgroups()
316 	if (cg_write(parent, "cgroup.subtree_control", "+memory"))  in test_kmem_dead_cgroups()
319 	if (cg_run_in_subcgroups(parent, alloc_dcache, (void *)100, 30))  in test_kmem_dead_cgroups()
323 		dead = cg_read_key_long(parent, "cgroup.stat",  in test_kmem_dead_cgroups()
337 	cg_destroy(parent);  in test_kmem_dead_cgroups()
338 	free(parent);  in test_kmem_dead_cgroups()
344  * This test creates a sub-tree with 1000 memory cgroups.
345  * Then it checks that the memory.current on the parent level
352 	char *parent, *child;  in test_percpu_basic()  local
356 	parent = cg_name(root, "percpu_basic_test");  in test_percpu_basic()
357 	if (!parent)  in test_percpu_basic()
360 	if (cg_create(parent))  in test_percpu_basic()
363 	if (cg_write(parent, "cgroup.subtree_control", "+memory"))  in test_percpu_basic()
367 		child = cg_name_indexed(parent, "child", i);  in test_percpu_basic()
368 		if (!child)  in test_percpu_basic()
369 			return -1;  in test_percpu_basic()
371 		if (cg_create(child))  in test_percpu_basic()
374 		free(child);  in test_percpu_basic()
377 	current = cg_read_long(parent, "memory.current");  in test_percpu_basic()
378 	percpu = cg_read_key_long(parent, "memory.stat", "percpu ");  in test_percpu_basic()
380 	if (current > 0 && percpu > 0 && abs(current - percpu) <  in test_percpu_basic()
389 		child = cg_name_indexed(parent, "child", i);  in test_percpu_basic()
390 		cg_destroy(child);  in test_percpu_basic()
391 		free(child);  in test_percpu_basic()
395 	cg_destroy(parent);  in test_percpu_basic()
396 	free(parent);  in test_percpu_basic()