Re: [for-next][PATCH 1/4] ftrace/x86: Add dynamic allocated trampoline for ftrace_ops

[Borislav Petkov]

On Thu, Nov 06, 2014 at 08:57:15AM -0500, Steven Rostedt wrote:
> > > +/* Trampolines can only be created if modules are supported */
> > 
> > Just for my own understanding: why? You're not loading additional .ko's
> > right?
> 
> It goes back to the EXEC issue. The module allocation goes through
> leaps and bounds to get memory allocated for EXEC correct. I wasn't
> about to duplicate that.
> 
> Ideally, there should be a generic way to allocate memory that will be
> used for executing code, but right now we depend on module code.

Yah, that could be a nice addition (in a separate patch, ontop, as you
say) to explain the dependency on CONFIG_MODULES, which is not trivially
apparent.

-- 
Regards/Gruss,
    Boris.

Sent from a fat crate under my desk. Formatting is fine.
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