On 1 Sep 2026, at 11:55, Steven Rostedt wrote:

> On Mon, 31 Aug 2026 15:25:37 -0400
> Zi Yan <[email protected]> wrote:
>
>> diff --git a/include/trace/events/mmflags.h b/include/trace/events/mmflags.h
>> index 935893e5ea53b..caf090cd6f85e 100644
>> --- a/include/trace/events/mmflags.h
>> +++ b/include/trace/events/mmflags.h
>> @@ -144,7 +144,7 @@ TRACE_DEFINE_ENUM(___GFP_LAST_BIT);
>>      DEF_PAGEFLAG_NAME(owner_2),                                     \
>>      DEF_PAGEFLAG_NAME(arch_1),                                      \
>>      DEF_PAGEFLAG_NAME(reserved),                                    \
>> -    DEF_PAGEFLAG_NAME(private),                                     \
>> +    { 1UL << __PG_folio, "folio" },                                 \
>>      DEF_PAGEFLAG_NAME(private_2),                                   \
>>      DEF_PAGEFLAG_NAME(writeback),                                   \
>>      DEF_PAGEFLAG_NAME(head),                                        \
>
> Hmm, just for consistency sake, can we create a:
>
>  #define __DEF_PAGEFLAG_NAME(_name) { 1UL <<  __PG_##_name, 
> __stringify(_name) }
>
> Which is similar to:
>
>  #define DEF_PAGEFLAG_NAME(_name) { 1UL <<  PG_##_name, __stringify(_name) }
>
> But adds the "__" to the name. Then the above would look like:
>
>       DEF_PAGEFLAG_NAME(reserved),                                    \
>       __DEF_PAGEFLAG_NAME(folio),                                     \
>       DEF_PAGEFLAG_NAME(private_2),                                   \
>       DEF_PAGEFLAG_NAME(writeback),                                   \
>
> Where the __DEF_PAGEFLAG_NAME() with the "__" still stands out, but the
> code looks better than open coding it in the middle and making one wonder
> why it was open coded. (It took me a bit to noticed the "__" difference.)
>

No problem.

BTW, the plan is to add PG_folio after this series is picked up by Andrew/David.
So the new __DEF_PAGEFLAG_NAME() will have no user then and can be deleted.
It should be fine, right?

Best Regards,
Yan, Zi

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