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Re: [Xen-ia64-devel] [PATCH 0/2] fix p2m traversing race.

To: Isaku Yamahata <yamahata@xxxxxxxxxxxxx>
Subject: Re: [Xen-ia64-devel] [PATCH 0/2] fix p2m traversing race.
From: Alex Williamson <alex.williamson@xxxxxx>
Date: Thu, 30 Nov 2006 16:42:27 -0700
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On Tue, 2006-11-28 at 18:02 +0900, Isaku Yamahata wrote:
> reviewing p2m table destruction patch, I found that traversing
> p2m table isn't SMP-safe. this patchset tries to fix it.
> 
> With this patchset, all pgd_t, pud_t, pmd_t, pte_t are with volatile.
> It's very ugly.
> It strongly indicates that new types and interfaces for the p2m table
> should be defined.
> Although I'm not sure it should be considered,
> I think that it would be a mid-term goal and post-3.0.4. not now.

   I applied these and agree that we should consider a better fix post
3.0.4.  Thanks,

        Alex

-- 
Alex Williamson                             HP Open Source & Linux Org.


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