parisc: convert /proc/pdc/{lcd,led} to seq_file

[safe/jmp/linux-2.6] / include / linux / pid_namespace.h

diff --git a/include/linux/pid_namespace.h b/include/linux/pid_namespace.h
index ddb9a4c..38d1032 100644 (file)
--- a/include/linux/pid_namespace.h
+++ b/include/linux/pid_namespace.h
@@ -4,7 +4,6 @@
 #include <linux/sched.h>
 #include <linux/mm.h>
 #include <linux/threads.h>
-#include <linux/pid.h>
 #include <linux/nsproxy.h>
 #include <linux/kref.h>
 
@@ -15,32 +14,73 @@ struct pidmap {
 
 #define PIDMAP_ENTRIES         ((PID_MAX_LIMIT + 8*PAGE_SIZE - 1)/PAGE_SIZE/8)
 
+struct bsd_acct_struct;
+
 struct pid_namespace {
        struct kref kref;
        struct pidmap pidmap[PIDMAP_ENTRIES];
        int last_pid;
        struct task_struct *child_reaper;
+       struct kmem_cache *pid_cachep;
+       unsigned int level;
+       struct pid_namespace *parent;
+#ifdef CONFIG_PROC_FS
+       struct vfsmount *proc_mnt;
+#endif
+#ifdef CONFIG_BSD_PROCESS_ACCT
+       struct bsd_acct_struct *bacct;
+#endif
 };
 
 extern struct pid_namespace init_pid_ns;
 
+#ifdef CONFIG_PID_NS
 static inline struct pid_namespace *get_pid_ns(struct pid_namespace *ns)
 {
-       kref_get(&ns->kref);
+       if (ns != &init_pid_ns)
+               kref_get(&ns->kref);
        return ns;
 }
 
 extern struct pid_namespace *copy_pid_ns(unsigned long flags, struct pid_namespace *ns);
 extern void free_pid_ns(struct kref *kref);
+extern void zap_pid_ns_processes(struct pid_namespace *pid_ns);
 
 static inline void put_pid_ns(struct pid_namespace *ns)
 {
-       kref_put(&ns->kref, free_pid_ns);
+       if (ns != &init_pid_ns)
+               kref_put(&ns->kref, free_pid_ns);
 }
 
-static inline struct task_struct *child_reaper(struct task_struct *tsk)
+#else /* !CONFIG_PID_NS */
+#include <linux/err.h>
+
+static inline struct pid_namespace *get_pid_ns(struct pid_namespace *ns)
 {
-       return init_pid_ns.child_reaper;
+       return ns;
 }
 
+static inline struct pid_namespace *
+copy_pid_ns(unsigned long flags, struct pid_namespace *ns)
+{
+       if (flags & CLONE_NEWPID)
+               ns = ERR_PTR(-EINVAL);
+       return ns;
+}
+
+static inline void put_pid_ns(struct pid_namespace *ns)
+{
+}
+
+
+static inline void zap_pid_ns_processes(struct pid_namespace *ns)
+{
+       BUG();
+}
+#endif /* CONFIG_PID_NS */
+
+extern struct pid_namespace *task_active_pid_ns(struct task_struct *tsk);
+void pidhash_init(void);
+void pidmap_init(void);
+
 #endif /* _LINUX_PID_NS_H */