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Typo Correction bellow
On 1/7/21 11:26 AM, Andrey Grodzovsky
wrote:
Or is the idea to save the struct page * pointer? That feels a
bit like
over-optimizing stuff. Better to have a simple implementation
first and
then tune it if (and only if) any part of it becomes a problem
for normal
usage.
Exactly - the idea is to avoid adding extra pointer to
drm_gem_object,
Christian suggested to instead keep a linked list of dummy pages
to be
allocated on demand once we hit a vm_fault. I will then also
prefault the entire
VA range from vma->vm_end - vma->vm_start to vma->vm_end
and map them
to that single dummy page.
Obviously the range is from vma->vm_start to vma->vm_end
Andrey
Andrey
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