attach_pid() with struct pid parameter
[platform/adaptation/renesas_rcar/renesas_kernel.git] / kernel / pid.c
index d3ad724..d76f593 100644 (file)
@@ -247,13 +247,16 @@ struct pid * fastcall find_pid(int nr)
 }
 EXPORT_SYMBOL_GPL(find_pid);
 
-int fastcall attach_pid(struct task_struct *task, enum pid_type type, int nr)
+/*
+ * attach_pid() must be called with the tasklist_lock write-held.
+ */
+int fastcall attach_pid(struct task_struct *task, enum pid_type type,
+               struct pid *pid)
 {
        struct pid_link *link;
-       struct pid *pid;
 
        link = &task->pids[type];
-       link->pid = pid = find_pid(nr);
+       link->pid = pid;
        hlist_add_head_rcu(&link->node, &pid->tasks[type]);
 
        return 0;