On Wed, 21 Nov 2012, Andrew Morton wrote:
The proposed API bugs me a bit. It seems simplistic. I need to have a quality think about this. Maybe the result of that think will be to suggest an interface which can be extended in a back-compatible fashion later on, if/when the simplistic nature becomes a problem.
That's exactly why I made a generic vmevent_fd() syscall, not a 'vm pressure' specific ABI.
Pekka