linux-kernel - Re: [PATCH 1/11] ksm: allow trees per NUMA node

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Date:	Sun, 27 Jan 2013 13:55:19 -0800 (PST)
From:	Hugh Dickins <hughd@...gle.com>
To:	Simon Jeons <simon.jeons@...il.com>
cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Petr Holasek <pholasek@...hat.com>,
	Andrea Arcangeli <aarcange@...hat.com>,
	Izik Eidus <izik.eidus@...ellosystems.com>,
	Rik van Riel <riel@...hat.com>,
	David Rientjes <rientjes@...gle.com>,
	Anton Arapov <anton@...hat.com>, linux-kernel@...r.kernel.org,
	linux-mm@...ck.org
Subject: Re: [PATCH 1/11] ksm: allow trees per NUMA node

On Sat, 26 Jan 2013, Simon Jeons wrote:
> On Sat, 2013-01-26 at 18:54 -0800, Hugh Dickins wrote:
> > 
> > So you'd like us to add code for moving a node from one tree to another
> > in ksm_migrate_page() (and what would it do when it collides with an
> 
> Without numa awareness, I still can't understand your explanation why
> can't insert the node to the tree just after page migration instead of
> inserting it at the next scan.

The node is already there in the right (only) tree in that case.

> 
> > existing node?), code which will then be removed a few patches later
> > when ksm page migration is fully enabled?
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