Damn. Sorry for noise...
On 02/05, Oleg Nesterov wrote:
>
> +int force_sig_info(int sig, struct siginfo *info, struct task_struct *t)
> +{
> +#ifdef CONFIG_PREEMPT_RT_FULL
> + if (in_atomic()) {
> + if (WARN_ON_ONCE(t != current))
This is certainly wrong in upstream kernel. It does use force_
this way although it shouldn't imho.
But _probably_ this is fine for rt? We are going to take the mutex,
we shouldn't do this in atomic context. But, once again, I do not
really know what in_atomic() means in rt.
Oleg.
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