linux-kernel - Re: [RFC][PATCH] Cross Memory Attach

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Message-ID: <1284659227.2275.595.camel@laptop>
Date:	Thu, 16 Sep 2010 19:47:07 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	Christopher Yeoh <cyeoh@....ibm.com>, linux-kernel@...r.kernel.org
Subject: Re: [RFC][PATCH] Cross Memory Attach

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 :-)

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