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From: Peter Zijlstra <peterz@infradead.org>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Christopher Yeoh <cyeoh@au1.ibm.com>, linux-kernel@vger.kernel.org
Subject: Re: [RFC][PATCH] Cross Memory Attach
Date: Thu, 16 Sep 2010 19:47:07 +0200	[thread overview]
Message-ID: <1284659227.2275.595.camel@laptop> (raw)
In-Reply-To: <AANLkTikquj_2DE4UhTFAoDxL+1g=_BocCQJ5agrwC4NU@mail.gmail.com>

On Thu, 2010-09-16 at 10:34 -0700, Linus Torvalds wrote:
> 
> Of course, these days I would seriously suggest against trying to
> optimize the kmap() case. It only matters on crap hardware these days.
> Anybody running HIGHMEM in 2010 and thinks that it makes sense
> deserves the pain the get. We should not complicate the kernel further
> for it, and sane architectures will have a no-op kmap(). 

OK, fully agreed. Someone ought to tell ARM though :-)


  reply	other threads:[~2010-09-16 17:47 UTC|newest]

Thread overview: 62+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-09-15  1:18 [RFC][PATCH] Cross Memory Attach Christopher Yeoh
2010-09-15  8:02 ` Ingo Molnar
2010-09-15  8:02   ` Ingo Molnar
2010-09-15  8:16   ` Ingo Molnar
2010-09-15  8:16     ` Ingo Molnar
2010-09-15 13:23     ` Christopher Yeoh
2010-09-15 13:23       ` Christopher Yeoh
2010-09-15 13:20   ` Christopher Yeoh
2010-09-15 13:20     ` Christopher Yeoh
2010-09-15 10:58 ` Avi Kivity
2010-09-15 10:58   ` Avi Kivity
2010-09-15 13:51   ` Ingo Molnar
2010-09-15 13:51     ` Ingo Molnar
2010-09-15 16:10     ` Avi Kivity
2010-09-15 16:10       ` Avi Kivity
2010-09-15 14:42   ` Christopher Yeoh
2010-09-15 14:42     ` Christopher Yeoh
2010-09-15 14:52     ` Linus Torvalds
2010-09-15 14:52       ` Linus Torvalds
2010-09-15 15:44       ` Robin Holt
2010-09-15 15:44         ` Robin Holt
2010-09-16  6:32     ` Brice Goglin
2010-09-16  6:32       ` Brice Goglin
2010-09-16  9:15       ` Brice Goglin
2010-09-16  9:15         ` Brice Goglin
2010-09-16 14:00         ` Christopher Yeoh
2010-09-16 14:00           ` Christopher Yeoh
2010-09-15 14:46   ` Bryan Donlan
2010-09-15 14:46     ` Bryan Donlan
2010-09-15 16:13     ` Avi Kivity
2010-09-15 16:13       ` Avi Kivity
2010-09-15 19:35       ` Eric W. Biederman
2010-09-15 19:35         ` Eric W. Biederman
2010-09-16  1:18     ` Christopher Yeoh
2010-09-16  1:18       ` Christopher Yeoh
2010-09-16  9:26       ` Avi Kivity
2010-09-16  9:26         ` Avi Kivity
2010-11-02  3:37         ` Christopher Yeoh
2010-11-02  3:37           ` Christopher Yeoh
2010-11-02 11:10           ` Avi Kivity
2010-11-02 11:10             ` Avi Kivity
2010-09-16  1:58     ` KOSAKI Motohiro
2010-09-16  1:58       ` KOSAKI Motohiro
2010-09-16  8:08       ` Ingo Molnar
2010-09-16  8:08         ` Ingo Molnar
2010-09-15 15:11 ` Linus Torvalds
2010-09-15 15:14   ` Linus Torvalds
2010-09-16  2:25     ` Christopher Yeoh
2010-09-16 16:27   ` Peter Zijlstra
2010-09-16 16:54     ` Linus Torvalds
2010-09-16 17:13       ` Peter Zijlstra
2010-09-16 17:34         ` Linus Torvalds
2010-09-16 17:47           ` Peter Zijlstra [this message]
2010-09-16 17:54             ` Linus Torvalds
2010-09-16 18:00               ` Linus Torvalds
2010-09-19  4:44                 ` Yuhong Bao
2010-09-19 19:20               ` Yuhong Bao
2010-09-19 21:48                 ` Russell King - ARM Linux
2010-09-19 22:47                   ` Yuhong Bao
2010-09-19  4:55           ` Yuhong Bao
2010-09-15 16:07 ` Valdis.Kletnieks
2010-09-16  2:17   ` Christopher Yeoh

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