Subject: Re: [PATCH 0/2] Make the Unevictable LRU available on NOMMU
From: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
To: David Howells <dhowells@redhat.com>
Cc: Minchan Kim <minchan.kim@gmail.com>,
       Andrew Morton <akpm@linux-foundation.org>,
       kosaki.motohiro@jp.fujitsu.com, torvalds@linux-foundation.org,
       peterz@infradead.org, nrik.Berkhan@ge.com, uclinux-dev@uclinux.org,
       linux-kernel@vger.kernel.org, linux-mm@kvack.org, hannes@cmpxchg.org,
       riel@surriel.com
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Date: Fri, 20 Mar 2009 14:30:15 -0400
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On Fri, 2009-03-20 at 16:24 +0000, David Howells wrote:
> Lee Schermerhorn <Lee.Schermerhorn@hp.com> wrote:
> 
> > I just want to point out [again :)] that removing the ramfs pages from
> > the lru will prevent them from being migrated
> 
> This is less of an issue for NOMMU kernels, since you can't migrate pages that
> are mapped.


Agreed.  So, you could eliminate them [ramfs pages] from the lru for
just the nommu kernels, if you wanted to go that route.

Lee

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