From: Sukadev Bhattiprolu <sukadev@us.ibm.com>
Subject: [RFC][PATCH]

Remove copy_pid_ns() as its no longer needed.

Signed-off-by: Sukadev Bhattiprolu <sukadev@us.ibm.com>
Cc: Cedric Le Goater <clg@fr.ibm.com>
Cc: Dave Hansen <haveblue@us.ibm.com>
Cc: Serge Hallyn <serue@us.ibm.com>
Cc: containers@lists.osdl.org
---
 include/linux/pid_namespace.h |    1 -
 kernel/pid.c                  |   12 ------------
 2 files changed, 13 deletions(-)

Index: lx26-20-mm2b/include/linux/pid_namespace.h
===================================================================
--- lx26-20-mm2b.orig/include/linux/pid_namespace.h	2007-03-09 19:01:09.000000000 -0800
+++ lx26-20-mm2b/include/linux/pid_namespace.h	2007-03-09 19:02:05.000000000 -0800
@@ -31,7 +31,6 @@ static inline void get_pid_ns(struct pid
 
 extern int unshare_pid_ns(unsigned long unshare_ns_flags,
 			struct pid_nr **new_pid_nr);
-extern int copy_pid_ns(int flags, struct task_struct *tsk);
 extern void free_pid_ns(struct kref *kref);
 extern struct pid_namespace *pid_ns(struct pid * pid);
 
Index: lx26-20-mm2b/kernel/pid.c
===================================================================
--- lx26-20-mm2b.orig/kernel/pid.c	2007-03-09 19:01:09.000000000 -0800
+++ lx26-20-mm2b/kernel/pid.c	2007-03-09 19:02:05.000000000 -0800
@@ -579,18 +579,6 @@ int unshare_pid_ns(unsigned long unshare
 	return 0;
 }
 
-int copy_pid_ns(int flags, struct task_struct *tsk)
-{
-	struct pid_namespace *old_ns = task_pid_ns(tsk);
-	int err = 0;
-
-	if (!old_ns)
-		return 0;
-
-	get_pid_ns(old_ns);
-	return err;
-}
-
 void free_pid_ns(struct kref *kref)
 {
 	struct pid_namespace *ns;
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