Re: [Xen-devel] [PATCH] Remove physmap page upon granttab xfer

To:	Isaku Yamahata <yamahata@xxxxxxxxxxxxx>
Subject:	Re: [Xen-devel] [PATCH] Remove physmap page upon granttab xfer
From:	Keir Fraser <keir.fraser@xxxxxxxxxxxxx>
Date:	Thu, 29 May 2008 11:15:31 +0100
Cc:	xen-devel@xxxxxxxxxxxxxxxxxxx, Espen Skoglund <espen.skoglund@xxxxxxxxxxxxx>, xen-ia64-devel@xxxxxxxxxxxxxxxxxxx
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On 29/5/08 11:10, "Keir Fraser" <keir.fraser@xxxxxxxxxxxxx> wrote:

>> Thank you for explanation.
>> The patch breaks ia64 granttab xfer breakage so that it have to be fixed.
>> However the operation is now obsoleted one, so I don't want to make
>> big effort to fix.
>> What do you think about the following patch?
> 
> How does grant transfer work on ia64? Looking at netback I don't even see
> how the 'hole' left by transfer of the old page gets filled by mapping in a
> new page.

Oh, I see you do it steal_page(). Okay, I think best to make the
remove_page() call ifndef ia64 then.

 -- Keir



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