On Fri, Jun 20, 2014 at 12:12:36PM -0700, Paul E. McKenney wrote: > o Make cond_resched() a no-op for PREEMPT=y. This might well turn > out to be a good thing, but it doesn't help give RCU the quiescent > states that it needs.
What about doing this, together with letting the fqs logic poke un-quiesced kernel code as needed? That way, rather than having cond_resched do any work, you have the fqs logic recognize that a particular CPU has gone too long without quiescing, without disturbing that CPU at all if it hasn't gone too long. - Josh Triplett -- 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/
