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SubjectRe: [PATCH 1/7] Introduce the pagetable_operations and associated helper macros.
Adam Litke wrote:
>> We didn't want to bloat the size of the vm_ops struct for all of its
>> users.

On Thu, Mar 22, 2007 at 10:02:07AM +1100, Nick Piggin wrote:
> But vmas are surely far more numerous than vm_ops, aren't they?

It should be clarified that the pointer to the operations structure
in once-per-mmap() vmas is a bigger overhead than once-per-driver
function pointers in the vm_ops structure.


-- wli
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