On Fri, Jan 11, 2019 at 01:10:47PM -0800, Linus Torvalds wrote: > On Fri, Jan 11, 2019 at 1:05 PM Andy Lutomirski <l...@kernel.org> wrote: > > > > > Yeah, my suggestion doesn't allow for batching, since it would > > > basically generate one trampoline for every rewritten instruction. > > > > Sure it does. Just make 1000 trampolines and patch 1000 sites in a > > batch :) As long as the number of trampolines is smallish (e.g. fits > > in a page), then we should be in good shape. > > Yeah, I guess that's true. > > But let's not worry about it. I don't think we do batching for any > alternative instruction rewriting right now, do we?
Not at the moment, but Daniel has been working on some patches to do so: https://lkml.kernel.org/r/cover.1545228276.git.bris...@redhat.com -- Josh
