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From: Rusty Russell <rusty@rustcorp.com.au>
To: Arjan van de Ven <arjan@infradead.org>
Cc: Zachary Amsden <zach@vmware.com>, Ingo Molnar <mingo@elte.hu>,
	Andrew Morton <akpm@osdl.org>,
	linux-kernel@vger.kernel.org, Adrian Bunk <bunk@stusta.de>
Subject: Re: [patch] paravirt: isolate module ops
Date: Sat, 06 Jan 2007 16:34:01 +1100	[thread overview]
Message-ID: <1168061641.20372.17.camel@localhost.localdomain> (raw)
In-Reply-To: <1168049229.3101.15.camel@laptopd505.fenrus.org>

On Fri, 2007-01-05 at 18:07 -0800, Arjan van de Ven wrote:
> > 
> > I would suggest a slightly different carving.  For one, no TLB flushes.  
> > If you can't modify PTEs, why do you need to have TLB flushes?  And I 
> > would allow CR0 read / write for code which saves and restores FPU state 
> 
> no that is abstracted away by kernel_fpu_begin/end. Modules have no
> business doing that themselves

Sure, but it'll take some time to fix the raid modules (which are the
ones which abuse this).

I'm testing a patch now, I'll send the clts removal patch on top of that
once it's done.

Rusty.


      parent reply	other threads:[~2007-01-06  5:34 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-01-06  0:07 [patch] paravirt: isolate module ops Ingo Molnar
2007-01-06  0:31 ` Zachary Amsden
2007-01-06  6:25   ` Rusty Russell
2007-01-06  7:08     ` Ingo Molnar
2007-01-06  7:12       ` Ingo Molnar
2007-01-06 17:42       ` Rusty Russell
2007-01-06 18:32         ` Ingo Molnar
2007-01-06 20:55         ` Zachary Amsden
2007-01-07  1:09           ` Rusty Russell
2007-01-07 14:07             ` Zachary Amsden
2007-01-06  7:14     ` Ingo Molnar
2007-01-06  9:50       ` Zachary Amsden
2007-01-06 10:52         ` Arjan van de Ven
2007-01-06 16:18       ` Rusty Russell
2007-01-06 19:31         ` Christoph Hellwig
2007-01-07  5:35           ` Rusty Russell
2007-01-07 18:39           ` Christoph Hellwig
2007-01-07 18:43             ` Ingo Molnar
2007-01-08  0:54             ` Dave Airlie
2007-01-06  1:02 ` Zachary Amsden
2007-01-06  2:07   ` Arjan van de Ven
2007-01-06  4:41     ` Zachary Amsden
2007-01-06  5:34     ` Rusty Russell [this message]

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