On 5/14/19 9:21 AM, Peter Zijlstra wrote:
On Mon, May 13, 2019 at 07:02:30PM -0700, Andy Lutomirski wrote:
This sounds like a great use case for static_call(). PeterZ, do you
suppose we could wire up static_call() with the module infrastructure
to make it easy to do "static_call to such-and-such GPL module symbol
if that symbol is in a loaded module, else nop"?
You're basically asking it to do dynamic linking. And I suppose that is
technically possible.
However, I'm really starting to think kvm (or at least these parts of it
that want to play these games) had better not be a module anymore.
Maybe we can use an atomic notifier (e.g. page_fault_notifier)?
alex.
