linux-kernel - Re: [RFC PATCH] mm: Add helpers for locked

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Date:	Wed, 30 Jul 2014 14:47:48 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Alexey Kardashevskiy <aik@...abs.ru>
Cc:	Davidlohr Bueso <davidlohr@...com>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	"Kirill A . Shutemov" <kirill.shutemov@...ux.intel.com>,
	Rik van Riel <riel@...hat.com>, Mel Gorman <mgorman@...e.de>,
	Johannes Weiner <hannes@...xchg.org>,
	Andrea Arcangeli <aarcange@...hat.com>,
	Sasha Levin <sasha.levin@...cle.com>,
	Wanpeng Li <liwanp@...ux.vnet.ibm.com>,
	Vlastimil Babka <vbabka@...e.cz>,
	"Jo\"rn Engel" <joern@...fs.org>,
	"Paul E . McKenney" <paulmck@...ux.vnet.ibm.com>,
	linux-mm@...ck.org, linux-kernel@...r.kernel.org,
	Alex Williamson <alex.williamson@...hat.com>,
	Alexander Graf <agraf@...e.de>,
	Michael Ellerman <michael@...erman.id.au>
Subject: Re: [RFC PATCH] mm: Add helpers for locked_vm

On Wed, Jul 30, 2014 at 10:30:48PM +1000, Alexey Kardashevskiy wrote:
> 
> No, this is not my intention here. Here I only want to increment the counter.

Full and hard nack on that. It should always be tied to actual pages, we
should not detach this and make it 'a number'.



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