From mboxrd@z Thu Jan  1 00:00:00 1970
From: Marcelo Tosatti <mtosatti@redhat.com>
Subject: Re: [PATCH 1/1] kvm : vmx : Remove yield_on_hlt
Date: Tue, 7 Feb 2012 19:15:46 -0200
Message-ID: <20120207211546.GA23022@amt.cnet>
References: <20120207174919.3848.99779.sendpatchset@oc5400248562.ibm.com>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Cc: Anthony Liguori <aliguori@us.ibm.com>, KVM <kvm@vger.kernel.org>,
	"H. Peter Anvin" <hpa@zytor.com>,
	Thomas Gleixner <tglx@linutronix.de>, X86 <x86@kernel.org>,
	Ingo Molnar <mingo@redhat.com>, Avi Kivity <avi@redhat.com>,
	LKML <linux-kernel@vger.kernel.org>,
	Srivatsa Vaddagiri <vatsa@linux.vnet.ibm.com>,
	Gleb Natapov <gleb@redhat.com>
To: Raghavendra K T <raghavendra.kt@linux.vnet.ibm.com>
Return-path: <linux-kernel-owner@vger.kernel.org>
Content-Disposition: inline
In-Reply-To: <20120207174919.3848.99779.sendpatchset@oc5400248562.ibm.com>
Sender: linux-kernel-owner@vger.kernel.org
List-Id: kvm.vger.kernel.org

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.