linux-kernel - Re: [PATCH] Kconfig: CONFIG_UNEVICTABLE

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Message-ID: <20090513143400.GC31071@waste.org>
Date:	Wed, 13 May 2009 09:34:00 -0500
From:	Matt Mackall <mpm@...enic.com>
To:	David Woodhouse <dwmw2@...radead.org>
Cc:	Minchan Kim <minchan.kim@...il.com>,
	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>,
	LKML <linux-kernel@...r.kernel.org>,
	linux-mm <linux-mm@...ck.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Lee Schermerhorn <Lee.Schermerhorn@...com>
Subject: Re: [PATCH] Kconfig: CONFIG_UNEVICTABLE_LRU move into EMBEDDED submenu

On Wed, May 13, 2009 at 11:37:17AM +0100, David Woodhouse wrote:
> On Wed, 2009-05-13 at 19:12 +0900, Minchan Kim wrote:
> > > No.
> > > As far as I know, many embedded guys use this configuration.
> > > they hate unexpected latency by reclaim. !UNEVICTABLE_LRU increase
> > > unexpectability largely.
> > 
> > As I said previous(http://lkml.org/lkml/2009/3/16/209), Many embedded
> > environment have a small ram. It doesn't have a big impact in such
> > case. 
> > 
> > Let CCed embedded matainers. 
> > I won't have a objection if embedded maintainers ack this. 
> 
> I probably wouldn't be cheerleading for it if you wanted to make it
> optional when it wasn't before -- but I suppose we might as well
> preserve the option under CONFIG_EMBEDDED if the alternative is to lose
> it completely.

As the person who introduced CONFIG_EMBEDDED, I've occasionally
thought we should rename it to CONFIG_NONSTANDARD to make the
semantics clearer. It's less about cell phones and more about going
way off the beaten path.

-- 
Mathematics is the supreme nostalgia of our time.
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