2bf25eeff8
The result of unit_get_sibling_mask returns bits for the sibling cgroups even if they are not supported in the local system. I caught this on a machine where my kernel was misconfigured with CONFIG_MEMCG unset, but the rest of the cgroup infrastructure enabled. Tested with `make check` on a host running a kernel where CONFIG_MEMCG is not set.
105 lines
4.9 KiB
C
105 lines
4.9 KiB
C
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
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/***
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This file is part of systemd.
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Copyright 2013 David Strauss
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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***/
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#include <stdio.h>
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#include "manager.h"
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#include "unit.h"
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#include "macro.h"
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#include "test-helper.h"
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static int test_cgroup_mask(void) {
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Manager *m = NULL;
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Unit *son, *daughter, *parent, *root, *grandchild, *parent_deep;
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FILE *serial = NULL;
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FDSet *fdset = NULL;
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int r;
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/* Prepare the manager. */
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assert_se(set_unit_path(TEST_DIR) >= 0);
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r = manager_new(MANAGER_USER, true, &m);
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if (r == -EPERM || r == -EACCES) {
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puts("manager_new: Permission denied. Skipping test.");
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return EXIT_TEST_SKIP;
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}
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assert_se(r >= 0);
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assert_se(manager_startup(m, serial, fdset) >= 0);
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/* Load units and verify hierarchy. */
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assert_se(manager_load_unit(m, "parent.slice", NULL, NULL, &parent) >= 0);
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assert_se(manager_load_unit(m, "son.service", NULL, NULL, &son) >= 0);
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assert_se(manager_load_unit(m, "daughter.service", NULL, NULL, &daughter) >= 0);
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assert_se(manager_load_unit(m, "grandchild.service", NULL, NULL, &grandchild) >= 0);
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assert_se(manager_load_unit(m, "parent-deep.slice", NULL, NULL, &parent_deep) >= 0);
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assert_se(parent->load_state == UNIT_LOADED);
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assert_se(son->load_state == UNIT_LOADED);
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assert_se(daughter->load_state == UNIT_LOADED);
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assert_se(grandchild->load_state == UNIT_LOADED);
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assert_se(parent_deep->load_state == UNIT_LOADED);
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assert_se(UNIT_DEREF(son->slice) == parent);
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assert_se(UNIT_DEREF(daughter->slice) == parent);
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assert_se(UNIT_DEREF(parent_deep->slice) == parent);
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assert_se(UNIT_DEREF(grandchild->slice) == parent_deep);
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root = UNIT_DEREF(parent->slice);
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/* Verify per-unit cgroups settings. */
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assert_se(unit_get_cgroup_mask(son) == (CGROUP_CPU | CGROUP_CPUACCT));
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assert_se(unit_get_cgroup_mask(daughter) == 0);
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assert_se(unit_get_cgroup_mask(grandchild) == 0);
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assert_se(unit_get_cgroup_mask(parent_deep) == CGROUP_MEMORY);
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assert_se(unit_get_cgroup_mask(parent) == CGROUP_BLKIO);
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assert_se(unit_get_cgroup_mask(root) == 0);
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/* Verify aggregation of member masks */
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assert_se(unit_get_members_mask(son) == 0);
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assert_se(unit_get_members_mask(daughter) == 0);
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assert_se(unit_get_members_mask(grandchild) == 0);
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assert_se(unit_get_members_mask(parent_deep) == 0);
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assert_se(unit_get_members_mask(parent) == (CGROUP_CPU | CGROUP_CPUACCT | CGROUP_MEMORY));
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assert_se(unit_get_members_mask(root) == (CGROUP_CPU | CGROUP_CPUACCT | CGROUP_BLKIO | CGROUP_MEMORY));
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/* Verify aggregation of sibling masks. */
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assert_se(unit_get_siblings_mask(son) == (CGROUP_CPU | CGROUP_CPUACCT | CGROUP_MEMORY));
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assert_se(unit_get_siblings_mask(daughter) == (CGROUP_CPU | CGROUP_CPUACCT | CGROUP_MEMORY));
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assert_se(unit_get_siblings_mask(grandchild) == 0);
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assert_se(unit_get_siblings_mask(parent_deep) == (CGROUP_CPU | CGROUP_CPUACCT | CGROUP_MEMORY));
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assert_se(unit_get_siblings_mask(parent) == (CGROUP_CPU | CGROUP_CPUACCT | CGROUP_BLKIO | CGROUP_MEMORY));
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assert_se(unit_get_siblings_mask(root) == (CGROUP_CPU | CGROUP_CPUACCT | CGROUP_BLKIO | CGROUP_MEMORY));
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/* Verify aggregation of target masks. */
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assert_se(unit_get_target_mask(son) == ((CGROUP_CPU | CGROUP_CPUACCT | CGROUP_MEMORY) & m->cgroup_supported));
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assert_se(unit_get_target_mask(daughter) == ((CGROUP_CPU | CGROUP_CPUACCT | CGROUP_MEMORY) & m->cgroup_supported));
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assert_se(unit_get_target_mask(grandchild) == 0);
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assert_se(unit_get_target_mask(parent_deep) == ((CGROUP_CPU | CGROUP_CPUACCT | CGROUP_MEMORY) & m->cgroup_supported));
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assert_se(unit_get_target_mask(parent) == ((CGROUP_CPU | CGROUP_CPUACCT | CGROUP_BLKIO | CGROUP_MEMORY) & m->cgroup_supported));
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assert_se(unit_get_target_mask(root) == ((CGROUP_CPU | CGROUP_CPUACCT | CGROUP_BLKIO | CGROUP_MEMORY) & m->cgroup_supported));
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manager_free(m);
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return 0;
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}
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int main(int argc, char* argv[]) {
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int rc = 0;
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TEST_REQ_RUNNING_SYSTEMD(rc = test_cgroup_mask());
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return rc;
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}
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