Re: [PATCH] x86/mm: Do not split_large_page() for set_kernel_text_rw()

From: Peter Zijlstra
Date: Mon Aug 26 2019 - 08:45:06 EST


On Mon, Aug 26, 2019 at 07:33:08AM -0400, Steven Rostedt wrote:
> Anyway, I believe Nadav has some patches that converts ftrace to use
> the shadow page modification trick somewhere.
>
> Or we also need the text_poke batch processing (did that get upstream?).

It did. And I just did that patch; I'll send out in a bit.

It seems to work, but this is the very first time I've looked at this
code.