Re: oom: __task_cred() need rcu_read_lock()

[David Howells]

KOSAKI Motohiro <kosaki.motohiro@xxxxxxxxxxxxxx> wrote:

> dump_tasks() can call __task_cred() safely because we are holding
> tasklist_lock. but rcu lock validator don't have enough knowledge and
> it makes following annoying warning.

No, it can't.  The tasklist_lock is not protection against the creds changing
on another CPU.

David
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