4 files changed, 7 insertions, 7 deletions

diff --git a/include/linux/init_task.h b/include/linux/init_task.h
index 8f8bb422a5c7..4865348ca8bd 100644
--- a/include/linux/init_task.h
+++ b/include/linux/init_task.h
@@ -72,6 +72,7 @@ extern struct nsproxy init_nsproxy;
 #define INIT_NSPROXY(nsproxy) {                                         \
         .count          = ATOMIC_INIT(1),                               \
         .nslock         = SPIN_LOCK_UNLOCKED,                           \
+        .namespace      = NULL,                                         \
 }
 
 #define INIT_SIGHAND(sighand) {                                         \
diff --git a/include/linux/namespace.h b/include/linux/namespace.h
index 3abc8e3b4879..d137009f0b2b 100644
--- a/include/linux/namespace.h
+++ b/include/linux/namespace.h
@@ -4,6 +4,7 @@
 
 #include <linux/mount.h>
 #include <linux/sched.h>
+#include <linux/nsproxy.h>
 
 struct namespace {
         atomic_t                count;
@@ -26,11 +27,8 @@ static inline void put_namespace(struct namespace *namespace)
 
 static inline void exit_namespace(struct task_struct *p)
 {
-        struct namespace *namespace = p->namespace;
+        struct namespace *namespace = p->nsproxy->namespace;
         if (namespace) {
-                task_lock(p);
-                p->namespace = NULL;
-                task_unlock(p);
                 put_namespace(namespace);
         }
 }
diff --git a/include/linux/nsproxy.h b/include/linux/nsproxy.h
index 7bdebfaab6a5..7ebe66670c59 100644
--- a/include/linux/nsproxy.h
+++ b/include/linux/nsproxy.h
@@ -4,6 +4,8 @@
 #include <linux/spinlock.h>
 #include <linux/sched.h>
 
+struct namespace;
+
 /*
  * A structure to contain pointers to all per-process
  * namespaces - fs (mount), uts, network, sysvipc, etc.
@@ -19,6 +21,7 @@
 struct nsproxy {
         atomic_t count;
         spinlock_t nslock;
+        struct namespace *namespace;
 };
 extern struct nsproxy init_nsproxy;
 
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 4fa631fa55e3..670b89a20070 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -238,7 +238,6 @@ extern signed long schedule_timeout_interruptible(signed long timeout);
 extern signed long schedule_timeout_uninterruptible(signed long timeout);
 asmlinkage void schedule(void);
 
-struct namespace;
 struct nsproxy;
 
 /* Maximum number of active map areas.. This is a random (large) number */
@@ -897,8 +896,7 @@ struct task_struct {
         struct fs_struct *fs;
 /* open file information */
         struct files_struct *files;
-/* namespace */
-        struct namespace *namespace;
+/* namespaces */
         struct nsproxy *nsproxy;
 /* signal handlers */
         struct signal_struct *signal;