On Wed, Oct 07, 2015 at 03:43:11PM +0200, Peter Zijlstra wrote: > On Tue, Oct 06, 2015 at 09:29:23AM -0700, Paul E. McKenney wrote: > > @@ -167,42 +307,18 @@ static void rcu_preempt_note_context_switch(void) > > > - raw_spin_unlock_irqrestore(&rnp->lock, flags); > > This again reminds me that we should move rcu_note_context_switch() > under the IRQ disable section the scheduler already has or remove the > IRQ disable from rcu_note_context_switch().
Ah, this is the unlikely path where we actually need to do work. The normal fast paths no longer require IRQs disabled, you already fixed that last time, good! -- 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/
