[Linux-kernel-mentees] [PATCH] cred: Use RCU primitives to access RCU pointers

Jann Horn jannh at google.com
Tue Jan 28 09:30:19 UTC 2020


On Tue, Jan 28, 2020 at 8:28 AM Amol Grover <frextrite at gmail.com> 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.


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