On Thu, Jan 25, 2018 at 1:08 PM, Andy Lutomirski <l...@kernel.org> wrote: > > With retpoline, the retpoline in the trampoline sucks. I don't need > perf for that -- I've benchmarked it both ways. It sucks. I'll fix > it, but it'll be kind of complicated.
Ahh, I'd forgotten about that (and obviously didn't see it in the profiles).
But yeah, that is fixable even if it does require a page per CPU. Or
did you have some clever scheme in mind?
But that's independent of the slow/fast path.
Linus
