sched: Use lockdep-based checking on rcu_dereference()

[deliverable/linux.git] / include / linux / cred.h

diff --git a/include/linux/cred.h b/include/linux/cred.h
index 4e3387a89cb92a8549e2c2479c37ac7fd2443956..4db09f89b637539e3d3e76bdc8565d51c0f11a7b 100644 (file)
--- a/include/linux/cred.h
+++ b/include/linux/cred.h
@@ -280,7 +280,7 @@ static inline void put_cred(const struct cred *_cred)
  * task or by holding tasklist_lock to prevent it from being unlinked.
  */
 #define __task_cred(task) \
-       ((const struct cred *)(rcu_dereference((task)->real_cred)))
+       ((const struct cred *)(rcu_dereference_check((task)->real_cred, rcu_read_lock_held() || lockdep_is_held(&tasklist_lock))))
 
 /**
  * get_task_cred - Get another task's objective credentials