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DateWed, 14 Mar 2007 08:35:07 +0000
FromMatt Keenan <>
SubjectRe: copy_one_pte()
Christoph Hellwig wrote:
> On Tue, Mar 13, 2007 at 08:15:25PM +0100, Zoltan Menyhart wrote:
> 
>> I had a look at copy_one_pte().
>> I cannot see any ioproc_update_page() call, not even for the COW pages.
>> Is it intentional?
>> 
>
> There is no such thing as ioproc_update_page in any mainline tree.
> You must be looking at some vendor tree with braindead patches applied.
>
> 
It looks like this function exists as a part of patches to support 
Quadrics NICs / RDMA (HPC platforms).  The patches are there so the 
driver doesn't need to pin pages, it can be informed of page updates 
directly.  A patch was submitted to l-k sometime in 2005.

Matt
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