Merge branch 'for-linus-1' of git://git.infradead.org/mtd-2.6

[sfrench/cifs-2.6.git] / ipc / namespace.c

diff --git a/ipc/namespace.c b/ipc/namespace.c
index aa1889962693d72820fd337a76c60f3493a6dc74..8054c8e5faf1da309ef7b44d9ecebd4000883277 100644 (file)
--- a/ipc/namespace.c
+++ b/ipc/namespace.c
@@ -15,7 +15,8 @@
 
 #include "util.h"
 
-static struct ipc_namespace *create_ipc_ns(struct ipc_namespace *old_ns)
+static struct ipc_namespace *create_ipc_ns(struct task_struct *tsk,
+                                          struct ipc_namespace *old_ns)
 {
        struct ipc_namespace *ns;
        int err;
@@ -44,17 +45,19 @@ static struct ipc_namespace *create_ipc_ns(struct ipc_namespace *old_ns)
        ipcns_notify(IPCNS_CREATED);
        register_ipcns_notifier(ns);
 
-       ns->user_ns = old_ns->user_ns;
-       get_user_ns(ns->user_ns);
+       ns->user_ns = get_user_ns(task_cred_xxx(tsk, user)->user_ns);
 
        return ns;
 }
 
-struct ipc_namespace *copy_ipcs(unsigned long flags, struct ipc_namespace *ns)
+struct ipc_namespace *copy_ipcs(unsigned long flags,
+                               struct task_struct *tsk)
 {
+       struct ipc_namespace *ns = tsk->nsproxy->ipc_ns;
+
        if (!(flags & CLONE_NEWIPC))
                return get_ipc_ns(ns);
-       return create_ipc_ns(ns);
+       return create_ipc_ns(tsk, ns);
 }
 
 /*
@@ -101,7 +104,6 @@ static void free_ipc_ns(struct ipc_namespace *ns)
        sem_exit_ns(ns);
        msg_exit_ns(ns);
        shm_exit_ns(ns);
-       kfree(ns);
        atomic_dec(&nr_ipc_ns);
 
        /*
@@ -110,6 +112,7 @@ static void free_ipc_ns(struct ipc_namespace *ns)
         */
        ipcns_notify(IPCNS_REMOVED);
        put_user_ns(ns->user_ns);
+       kfree(ns);
 }
 
 /*