[PATCH] cpuset: update_nodemask code reformat

[linux.git] / kernel / fork.c

diff --git a/kernel/fork.c b/kernel/fork.c
index fb8572a4229743baef22241dbab6ae8356f633c7..7fe3adfa65cb54025eda3093be23086a876435d4 100644 (file)
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -743,6 +743,14 @@ int unshare_files(void)
 
 EXPORT_SYMBOL(unshare_files);
 
+void sighand_free_cb(struct rcu_head *rhp)
+{
+       struct sighand_struct *sp;
+
+       sp = container_of(rhp, struct sighand_struct, rcu);
+       kmem_cache_free(sighand_cachep, sp);
+}
+
 static inline int copy_sighand(unsigned long clone_flags, struct task_struct * tsk)
 {
        struct sighand_struct *sig;
@@ -752,7 +760,7 @@ static inline int copy_sighand(unsigned long clone_flags, struct task_struct * t
                return 0;
        }
        sig = kmem_cache_alloc(sighand_cachep, GFP_KERNEL);
-       tsk->sighand = sig;
+       rcu_assign_pointer(tsk->sighand, sig);
        if (!sig)
                return -ENOMEM;
        spin_lock_init(&sig->siglock);