[PATCH v2 02/11] asm-generic/pgtable: Adds dummy functions to monitor lockless pgtable walks
John Hubbard
jhubbard at nvidia.com
Tue Sep 24 06:53:31 AEST 2019
On 9/23/19 1:48 PM, Leonardo Bras wrote:
> Thanks for the feedback,
>
> On Mon, 2019-09-23 at 13:39 -0700, John Hubbard wrote:
>> Please remember to include linux-mm if there is a v2.
>
> Sure, I will include on v3.
>
>> Nit: seems like it would be nicer to just put it all in one place, and use
>> positive logic, and also I think people normally don't compress the empty
>> functions quite that much. So like this:
>
> I did this by following the default on the rest of this file.
> As you can see, all other features use the standard of
> #ifndef SOMETHING
> dummy/generic functions
> #endif
>
> Declaring the functions become responsibility of the arch.
I noticed that, but...well, I guess you're right. Follow the way
it is. :)
thanks,
--
John Hubbard
NVIDIA
>
>> #ifdef __HAVE_ARCH_LOCKLESS_PGTBL_WALK_COUNTER
>> void start_lockless_pgtbl_walk(struct mm_struct *mm);
>> void end_lockless_pgtbl_walk(struct mm_struct *mm);
>> int running_lockless_pgtbl_walk(struct mm_struct *mm);
>>
>> #else
>> static inline void start_lockless_pgtbl_walk(struct mm_struct *mm)
>> {
>> }
>> static inline void end_lockless_pgtbl_walk(struct mm_struct *mm)
>> {
>> }
>> static inline int running_lockless_pgtbl_walk(struct mm_struct *mm)
>> {
>> return 0;
>> }
>> #endif
>>
>> thanks,
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