Re: [PATCH v5 1/6] kprobes: Remove dependency to the module_mutex

[Jarkko Sakkinen]

On Fri, Jul 24, 2020 at 11:46:31PM +0900, Masami Hiramatsu wrote:
> On Fri, 24 Jul 2020 08:05:48 +0300
> Jarkko Sakkinen <jarkko.sakkinen@xxxxxxxxxxxxxxx> wrote:
> 
> > Add lock_modules() and unlock_modules() wrappers for acquiring module_mutex
> > in order to remove the compile time dependency to it.
> 
> This subject is a bit confusing. This is just wrapping modules_mutex in
> kpprobes. We still have compile time dependency, e.g. module_state, right?

Yes. This more like a preliminary change to make that happen. The
actual flagging is in 6/6 ("Remove CONFIG_MODULE dependency").

Maybe a better angle would be to make this update all sites that
deal with module_mutex [*] and base the whole rationale on that?

[*] https://lore.kernel.org/lkml/20200725024227.GD17052@xxxxxxxxxxxxxxx/

/Jarkko