Re: [patch RT 1/4] rtmutex: Make lock_killable work

Peter Zijlstra
2017-04-04T07:13:15Z

On Mon, Apr 03, 2017 at 11:21:26AM -0400, Steven Rostedt wrote:
> On Sat, 01 Apr 2017 12:50:59 +0200
> Thomas Gleixner <tglx@linutronix.de> wrote:
>
> > Locking an rt mutex killable does not work because signal handling is
> > restricted to TASK_INTERRUPTIBLE.
> >
> > Use signal_pending_state() unconditionaly.
>
> Does this mean rt mutex killable is not INTERRUPTIBLE? because the
> change log seems to just assume that.

> > - if (unlikely(state == TASK_INTERRUPTIBLE)) {

#define TASK_KILLABLE (TASK_WAKEKILL | TASK_UNINTERRUPTIBLE)

I don't think we need to consider people who don't know where to find
the TASK_state definitions.