linux-kernel - Re: [patch -rt 2/2] KVM: lapic: mark LAPIC timer handler as irqsafe

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Message-ID: <alpine.DEB.2.11.1411252123480.3961@nanos>
Date:	Tue, 25 Nov 2014 21:24:14 +0100 (CET)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	Rik van Riel <riel@...hat.com>
cc:	Marcelo Tosatti <mtosatti@...hat.com>,
	linux-kernel@...r.kernel.org,
	Luiz Capitulino <lcapitulino@...hat.com>,
	Steven Rostedt <srostedt@...hat.com>, kvm@...r.kernel.org
Subject: Re: [patch -rt 2/2] KVM: lapic: mark LAPIC timer handler as
 irqsafe

On Tue, 25 Nov 2014, Rik van Riel wrote:
> On 11/25/2014 12:21 PM, Marcelo Tosatti wrote:
> > Since lapic timer handler only wakes up a simple waitqueue,
> > it can be executed from hardirq context.
> > 
> > Reduces average cyclictest latency by 3us.
> 
> Can this patch be merged in the KVM tree, and go
> upstream via Paolo?

Not really as it has RT dependencies ....

Thanks,

	tglx
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