X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=include%2Flinux%2Fpid_namespace.h;h=fcd61fa2c833e415ab823e03532bd4880b16be79;hb=3e4ab747efa8e78562ec6782b08bbf21a00aba1b;hp=0135c76c76c6dc8005d4cb2d42353fd3320624b1;hpb=b461cc03828c743aed6b3855b9ab0d39a9d54ec5;p=linux-2.6

diff --git a/include/linux/pid_namespace.h b/include/linux/pid_namespace.h
index 0135c76c76..fcd61fa2c8 100644
--- a/include/linux/pid_namespace.h
+++ b/include/linux/pid_namespace.h
@@ -29,6 +29,7 @@ struct pid_namespace {
 
 extern struct pid_namespace init_pid_ns;
 
+#ifdef CONFIG_PID_NS
 static inline struct pid_namespace *get_pid_ns(struct pid_namespace *ns)
 {
 	if (ns != &init_pid_ns)
@@ -38,6 +39,7 @@ static inline struct pid_namespace *get_pid_ns(struct pid_namespace *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)
 {
@@ -45,6 +47,33 @@ static inline void put_pid_ns(struct pid_namespace *ns)
 		kref_put(&ns->kref, free_pid_ns);
 }
 
+#else /* !CONFIG_PID_NS */
+#include <linux/err.h>
+
+static inline struct pid_namespace *get_pid_ns(struct pid_namespace *ns)
+{
+	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 */
+
 static inline struct pid_namespace *task_active_pid_ns(struct task_struct *tsk)
 {
 	return tsk->nsproxy->pid_ns;