Re: [PATCH 1/7] Introduce the pagetable_operations and associated helper macros.

From: William Lee Irwin III
Date: Wed Mar 21 2007 - 19:37:41 EST


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
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/