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Message-ID: <1492809331.25766.172.camel@kernel.crashing.org>
Subject: Re: [RFC 0/4] RFC - Coherent Device Memory (Not for inclusion)
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date: Sat, 22 Apr 2017 07:15:31 +1000
In-Reply-To: <alpine.DEB.2.20.1704211108120.14734@east.gentwo.org>
References: <20170419075242.29929-1-bsingharora@gmail.com>
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	 <alpine.DEB.2.20.1704201025360.26403@east.gentwo.org>
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To: Christoph Lameter <cl@linux.com>
Cc: Balbir Singh <bsingharora@gmail.com>, linux-mm@kvack.org, akpm@linux-foundation.org, khandual@linux.vnet.ibm.com, aneesh.kumar@linux.vnet.ibm.com, paulmck@linux.vnet.ibm.com, srikar@linux.vnet.ibm.com, haren@linux.vnet.ibm.com, jglisse@redhat.com, mgorman@techsingularity.net, mhocko@kernel.org, arbab@linux.vnet.ibm.com, vbabka@suse.cz

On Fri, 2017-04-21 at 11:13 -0500, Christoph Lameter wrote:
> > Other things are possibly more realistic to do that way, such as
> > taking
> > KSM and AutoNuma off the picture for it.
> 
> Well just pinning those pages or mlocking those will stop these
> scans.

But that will stop migration too :-) These are mostly policy
adjustement, we need to look at other options here.

Cheers,
Ben.

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