linux-kernel - Re: [RFC PATCH kernel vfio] mm: vfio: Move pages out of CMA before pinning

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Message-ID: <20150831134854.GN19282@twins.programming.kicks-ass.net>
Date:	Mon, 31 Aug 2015 15:48:54 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Alexey Kardashevskiy <aik@...abs.ru>
Cc:	Vlastimil Babka <vbabka@...e.cz>, linux-mm@...ck.org,
	Alexander Duyck <alexander.h.duyck@...hat.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	David Gibson <david@...son.dropbear.id.au>,
	Johannes Weiner <hannes@...xchg.org>,
	Joonsoo Kim <js1304@...il.com>, Mel Gorman <mgorman@...e.de>,
	Michal Hocko <mhocko@...e.cz>,
	Paul Mackerras <paulus@...ba.org>,
	Sasha Levin <sasha.levin@...cle.com>,
	linux-kernel@...r.kernel.org,
	Alex Williamson <alex.williamson@...hat.com>,
	Alexander Graf <agraf@...e.de>,
	Paolo Bonzini <pbonzini@...hat.com>,
	"Aneesh Kumar K . V" <aneesh.kumar@...ux.vnet.ibm.com>
Subject: Re: [RFC PATCH kernel vfio] mm: vfio: Move pages out of CMA before
 pinning

On Mon, Aug 17, 2015 at 07:11:01PM +1000, Alexey Kardashevskiy wrote:
> >OK such conversation should probably start by mentioning the VM_PINNED
> >effort by Peter Zijlstra: https://lkml.org/lkml/2014/5/26/345
> >
> >It's more general approach to dealing with pinned pages, and moving them
> >out of CMA area (and compacting them in general) prior pinning is one of
> >the things that should be done within that framework.
> 
> 
> And I assume these patches did not go anywhere, right?...

I got lost in the IB code :/

Its on the TODO pile somewhere
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