On Mon, Nov 23, 2020 at 12:01:35AM +0000, Edgecombe, Rick P wrote: > Another option could be putting the new metadata in vm_struct and just > return that, like get_vm_area(). Then we don't need to invent a new > struct. But then normal vmalloc()'s would have a bit of wasted memory > since they don't need this metadata.
That would seem most natural to me. We'll need to figure out how we can do that without bloating vm_struct too much. One option would be a bigger structure that embedds vm_struct and can be retreived using container_of().
