On 09/10/2012 04:19 PM, Peter Zijlstra wrote:
On Mon, 2012-09-10 at 15:12 -0500, Andrew Theurer wrote:
+ /*
+ * if the target task is not running, then only yield if the
+ * current task is in guest mode
+ */
+ if (!(p_rq->curr->flags & PF_VCPU))
+ goto out_irq;
This would make yield_to() only ever work on KVM, not that I mind this
too much, its a horrid thing and making it less useful for (ab)use is a
good thing, still this probably wants mention somewhere :-)
Also, it would not preempt a non-kvm task, even if we need
to do that to boost a VCPU. I think the lines above should
be dropped.
--
All rights reversed
--
To unsubscribe from this list: send the line "unsubscribe kvm" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
