On 13/12/17, Peter Zijlstra wrote:
> On Mon, Dec 16, 2013 at 05:20:51PM -0500, Richard Guy Briggs wrote:
>
> > static inline bool is_idle_task(const struct task_struct *p)
> > {
> > - return p->pid == 0;
> > + return task_pid(p) == &init_struct_pid;
> > }
>
> > I'll stick with task_pid_nr(p) == 0.
>
> We're going to probably switch to:
>
> return p->flags & PF_IDLE;
>
> Soon, because people are playing silly tricks and want normal threads
> to temporarily appear to be the idle thread (idle time injection).
Ok, this addresses my concerns. I'll stay out of the way.
- RGB
--
Richard Guy Briggs <rbri...@redhat.com>
Senior Software Engineer, Kernel Security, AMER ENG Base Operating Systems, Red
Hat
Remote, Ottawa, Canada
Voice: +1.647.777.2635, Internal: (81) 32635, Alt: +1.613.693.0684x3545
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