Re: [PATCH] mm: fix up a spurious page fault whenever it happens

[Steven Rostedt]

On Thu, 2013-05-23 at 10:24 -0700, H. Peter Anvin wrote:
> On 05/23/2013 08:27 AM, Steven Rostedt wrote:
> > On Thu, 2013-05-23 at 08:06 -0700, H. Peter Anvin wrote:
> > 
> >> We don't even need the jump_label infrastructure -- we have
> >> static_cpu_has*() which actually predates jump_label although it uses
> >> the same underlying ideas.
> > 
> > Ah right. I wonder if it would be worth consolidating a lot of these
> > "modifying of code" infrastructures. Which reminds me, I need to update
> > text_poke() to do things similar to what ftrace does, and get rid of the
> > stop machine code.
> > 
> 
> Well, static_cpu_has*() just uses the alternatives infrastructure.

And as it's a boot time change only, it's not quite in the category of
jump_labels and function tracing.

-- Steve


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