Re: [PATCH v2 1/4] introduce for_each_thread() to replace thebuggy while_each_thread()

From: Oleg Nesterov
Date: Thu Dec 05 2013 - 13:15:29 EST


On 12/04, David Rientjes wrote:
>
> Acked-by: David Rientjes <rientjes@xxxxxxxxxx>

Thanks!

> Minor: should the definitions of thread_{head,node} be annotated with
> __rcu for users of CONFIG_SPARSE_RCU_POINTER?

Perhaps. And perhaps task_struct->tasks. And perhaps we should add
rcu_read_lock_held() || lockdep_is_held(tasklist) || lockdep_is_held(siglock)
into for_each_process/thead.

But lets do this later. At least we should avoid the false positives.

Oleg.

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