Re: [PATCH] cred: Use RCU primitives to access RCU pointers

From: Jann Horn
Date: Tue Jan 28 2020 - 04:30:50 EST


On Tue, Jan 28, 2020 at 8:28 AM Amol Grover <frextrite@xxxxxxxxx> wrote:
> task_struct.cred and task_struct.real_cred are annotated by __rcu,

task_struct.cred doesn't actually have RCU semantics though, see
commit d7852fbd0f0423937fa287a598bfde188bb68c22. For task_struct.cred,
it would probably be more correct to remove the __rcu annotation?

> hence use rcu_access_pointer to access them.