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SubjectRe: [patch 12/13] GRU Driver V3 - export is_uv_system(), zap_page_range() & follow_page()
Christoph Hellwig wrote:
> On Thu, Jul 03, 2008 at 04:34:00PM -0500, steiner@sgi.com wrote:
>> +EXPORT_SYMBOL_GPL(zap_page_range);
>>
>> /*
>> * Do a quick page-table lookup for a single page.
>> @@ -1089,6 +1090,7 @@ no_page_table:
>> }
>> return page;
>> }
>> +EXPORT_SYMBOL_GPL(follow_page);
>
> NACK.
>
> These should never be called by a driver and suggest you need to rething
> your VM integration in this driver.

Well here we cannot run get_user_pages() since the context is atomic. What other choice is there?



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