On Sun, 25 Dec 2016 12:13:20 +0900 Masami Hiramatsu <mhira...@kernel.org> wrote:
> On Thu, 22 Dec 2016 00:42:19 -0600 > Josh Poimboeuf <jpoim...@redhat.com> wrote: > > > Hi Masami, > > > > I would like to make __kernel_text_address() be able to detect whether > > an address belongs to code which was generated by kprobes. As far as I > > can tell, that information seems to be in the 'pages' lists of > > kprobe_insn_slots and kprobe_optinsn_slots. But they seem to be > > protected by mutexes. > > Right. It is currently under mutex because it may kick > page allocation. But I think it is easy to fix that :) Hmm, IMHO, it seems that we should add a dummy (auto-generated) symbol for optprobe trampoline code to kallsyms so that __kernel_text_address() automatically returns true on it. Thank you, -- Masami Hiramatsu <mhira...@kernel.org>
