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

[H. Peter Anvin]

On 05/23/2013 10:36 AM, Steven Rostedt wrote:
> 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.
> 

Right.

	-hpa


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