From: Andrew Morton <akpm@zip.com.au>
To: Daniel Phillips <phillips@arcor.de>
Cc: Rik van Riel <riel@conectiva.com.br>,
Matti Aarnio <matti.aarnio@zmailer.org>,
Dave McCracken <dmccr@us.ibm.com>,
Linux Memory Management <linux-mm@kvack.org>
Subject: Re: [PATCH] Optimize away pte_chains for single mappings
Date: Mon, 15 Jul 2002 13:57:01 -0700 [thread overview]
Message-ID: <3D33371D.6003AAAE@zip.com.au> (raw)
In-Reply-To: <E17U8vA-0003ca-00@starship>
Daniel Phillips wrote:
>
> On Monday 15 July 2002 18:34, Rik van Riel wrote:
> > On Mon, 15 Jul 2002, Daniel Phillips wrote:
> >
> > > None of these cases apply, the low bit is always masked off before being
> > > used as a pointer.
> >
> > Too ugly to live.
>
> That's a nonargument. I presume you weren't able to think of a
> substantive reason.
How about "Linus will roast our nuts if we do that"?
Plus accessing the same storage with both atomic and non-atomic
ops may be a problem on some hardware.
Let's wait until we run out of page flags first...
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next prev parent reply other threads:[~2002-07-15 20:57 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-07-09 18:35 Dave McCracken
2002-07-13 13:13 ` Daniel Phillips
2002-07-15 14:02 ` Dave McCracken
2002-07-15 14:56 ` Daniel Phillips
2002-07-15 15:40 ` Matti Aarnio
2002-07-15 16:10 ` Daniel Phillips
2002-07-15 16:34 ` Rik van Riel
2002-07-15 16:42 ` Daniel Phillips
2002-07-15 20:57 ` Andrew Morton [this message]
2002-07-16 4:50 ` Daniel Phillips
2002-07-15 16:30 ` Daniel Phillips
2002-07-15 16:55 ` Matti Aarnio
2002-07-15 17:50 ` Daniel Phillips
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