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To: Tejun Heo <teheo@novell.com>
Cc: Jan Beulich <JBeulich@novell.com>, Ingo Molnar <mingo@elte.hu>,
       linux-kernel@vger.kernel.org
Subject: Re: remap allocator for per-CPU memory
From: Andi Kleen <andi@firstfloor.org>
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Date: Wed, 13 May 2009 13:05:37 +0200
In-Reply-To: <4A0A9C70.6090803@novell.com> (Tejun Heo's message of "Wed, 13 May 2009 19:09:52 +0900")
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Tejun Heo <teheo@novell.com> writes:
>
> Okay, just glanced over the pageattr code.  I don't think we need any
> special provisions for this as long as the TLB is fine with having
> overlapping PMD and PTE mappings with different attributes (please
> note that these two mappings aren't occupying the same linear
> addresses - they're aliases).  This is allowed, right?

Nope.

-Andi

-- 
ak@linux.intel.com -- Speaking for myself only.