59 lines
1.4 KiB
C
59 lines
1.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _LINUX_CGROUP_NAMESPACE_H
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#define _LINUX_CGROUP_NAMESPACE_H
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#include <linux/ns_common.h>
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struct cgroup_namespace {
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struct ns_common ns;
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struct user_namespace *user_ns;
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struct ucounts *ucounts;
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struct css_set *root_cset;
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};
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extern struct cgroup_namespace init_cgroup_ns;
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#ifdef CONFIG_CGROUPS
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static inline struct cgroup_namespace *to_cg_ns(struct ns_common *ns)
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{
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return container_of(ns, struct cgroup_namespace, ns);
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}
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void free_cgroup_ns(struct cgroup_namespace *ns);
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struct cgroup_namespace *copy_cgroup_ns(u64 flags,
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struct user_namespace *user_ns,
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struct cgroup_namespace *old_ns);
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int cgroup_path_ns(struct cgroup *cgrp, char *buf, size_t buflen,
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struct cgroup_namespace *ns);
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static inline void get_cgroup_ns(struct cgroup_namespace *ns)
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{
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ns_ref_inc(ns);
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}
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static inline void put_cgroup_ns(struct cgroup_namespace *ns)
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{
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if (ns_ref_put(ns))
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free_cgroup_ns(ns);
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}
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#else /* !CONFIG_CGROUPS */
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static inline void free_cgroup_ns(struct cgroup_namespace *ns) { }
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static inline struct cgroup_namespace *
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copy_cgroup_ns(u64 flags, struct user_namespace *user_ns,
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struct cgroup_namespace *old_ns)
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{
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return old_ns;
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}
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static inline void get_cgroup_ns(struct cgroup_namespace *ns) { }
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static inline void put_cgroup_ns(struct cgroup_namespace *ns) { }
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#endif /* !CONFIG_CGROUPS */
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#endif /* _LINUX_CGROUP_NAMESPACE_H */
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