5 #include <linux/mount.h>
6 #include <linux/sched.h>
10 struct vfsmount * root;
11 struct list_head list;
12 struct rw_semaphore sem;
15 extern int copy_namespace(int, struct task_struct *);
16 extern void __put_namespace(struct namespace *namespace);
18 static inline void put_namespace(struct namespace *namespace)
20 if (atomic_dec_and_test(&namespace->count))
21 __put_namespace(namespace);
24 static inline void exit_namespace(struct task_struct *p)
26 struct namespace *namespace = p->namespace;
31 put_namespace(namespace);
35 static inline void get_namespace(struct namespace *namespace)
37 atomic_inc(&namespace->count);