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[Xen-devel] question on get_page_and_type()
- To: <xen-devel@xxxxxxxxxxxxxxxxxxx>
- From: "Santos, Jose Renato G" <joserenato.santos@xxxxxx>
- Date: Fri, 13 Apr 2007 21:51:58 -0000
- Delivery-date: Fri, 13 Apr 2007 14:51:08 -0700
- List-id: Xen developer discussion <xen-devel.lists.xensource.com>
- Thread-index: Acd+AnYdtNWvBOn1EduH7gAWy6hiGQADAu5w
- Thread-topic: question on get_page_and_type()
Could someone please explain the
following
What is the purpose of get_page_and_type(page, domain,
PGT_writable_page) and why is it needed when doing a grant copy in
__gnttab_copy()?
Why can't we just use get_page() to prevent the page
from being freed while we are doing the copy?
Thanks
Renato
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