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Date: Tue, 7 Feb 2012 19:15:46 -0200
From: Marcelo Tosatti <mtosatti@redhat.com>
To: Raghavendra K T <raghavendra.kt@linux.vnet.ibm.com>
Cc: Anthony Liguori <aliguori@us.ibm.com>, KVM <kvm@vger.kernel.org>,
        "H. Peter Anvin" <hpa@zytor.com>, Thomas Gleixner <tglx@linutronix.de>,
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        Avi Kivity <avi@redhat.com>, LKML <linux-kernel@vger.kernel.org>,
        Srivatsa Vaddagiri <vatsa@linux.vnet.ibm.com>,
        Gleb Natapov <gleb@redhat.com>
Subject: Re: [PATCH 1/1] kvm : vmx : Remove yield_on_hlt
Message-ID: <20120207211546.GA23022@amt.cnet>
References: <20120207174919.3848.99779.sendpatchset@oc5400248562.ibm.com>
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On Tue, Feb 07, 2012 at 11:19:20PM +0530, Raghavendra K T wrote:
>   yield_on_hlt was introduced for CPU bandwidth capping. now it is redundant
> with CFS hardlimit.
> 
> yield_on_hlt also complicates the scenario in paravirtual environment, that
> needs to trap halt. for e.g. paravirtualized ticket spinlocks.
> 
> Changelog:
> Remove the support for yield_on_hlt.
> 
> Signed-off-by: Raghavendra K T <raghavendra.kt@linux.vnet.ibm.com>

Applied, thanks.