11a1589223
Files which are installed as-is (any .service and other unit files, .conf files, .policy files, etc), are left as is. My assumption is that SPDX identifiers are not yet that well known, so it's better to retain the extended header to avoid any doubt. I also kept any copyright lines. We can probably remove them, but it'd nice to obtain explicit acks from all involved authors before doing that.
35 lines
1.1 KiB
C
35 lines
1.1 KiB
C
/* SPDX-License-Identifier: LGPL-2.1+ */
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/***
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This file is part of systemd.
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Copyright 2017 Lennart Poettering
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***/
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#include "test-helper.h"
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#include "random-util.h"
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#include "alloc-util.h"
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#include "cgroup-util.h"
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int enter_cgroup_subroot(void) {
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_cleanup_free_ char *cgroup_root = NULL, *cgroup_subroot = NULL;
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CGroupMask supported;
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int r;
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r = cg_pid_get_path(NULL, 0, &cgroup_root);
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if (r == -ENOMEDIUM)
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return log_warning_errno(r, "cg_pid_get_path(NULL, 0, ...) failed: %m");
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assert(r >= 0);
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assert_se(asprintf(&cgroup_subroot, "%s/%" PRIx64, cgroup_root, random_u64()) >= 0);
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assert_se(cg_mask_supported(&supported) >= 0);
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/* If this fails, then we don't mind as the later cgroup operations will fail too, and it's fine if we handle
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* any errors at that point. */
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r = cg_create_everywhere(supported, _CGROUP_MASK_ALL, cgroup_subroot);
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if (r < 0)
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return r;
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return cg_attach_everywhere(supported, cgroup_subroot, 0, NULL, NULL);
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}
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