1 #ifndef _LINUX_NSPROXY_H
2 #define _LINUX_NSPROXY_H
4 #include <linux/spinlock.h>
5 #include <linux/sched.h>
10 * A structure to contain pointers to all per-process
11 * namespaces - fs (mount), uts, network, sysvipc, etc.
13 * 'count' is the number of tasks holding a reference.
14 * The count for each namespace, then, will be the number
15 * of nsproxies pointing to it, not the number of tasks.
17 * The nsproxy is shared by tasks which share all namespaces.
18 * As soon as a single namespace is cloned or unshared, the
24 struct namespace *namespace;
26 extern struct nsproxy init_nsproxy;
28 struct nsproxy *dup_namespaces(struct nsproxy *orig);
29 int copy_namespaces(int flags, struct task_struct *tsk);
30 void get_task_namespaces(struct task_struct *tsk);
31 void free_nsproxy(struct nsproxy *ns);
33 static inline void put_nsproxy(struct nsproxy *ns)
35 if (atomic_dec_and_test(&ns->count)) {
40 static inline void exit_task_namespaces(struct task_struct *p)
42 struct nsproxy *ns = p->nsproxy;