On Tue, Sep 23, 2014 at 07:45:22AM -0400, Rik van Riel wrote: > > I really thing the preempt_disable/enable is not needed. > > > > Paul, Thomas, care to comment? > > I suspect you are right. On normal kernels, rcu_read_lock() will > ensure preemption is disabled. > > On -rt, the locks within are all sleepable mutexes. > > Either way, things should be ok.
But with CONFIG_PREEMPT we get preemptible RCU but not the spinlock->rt_mutex conversion. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
