Re: mmotm 2020-07-08-19-28 uploaded (mm/migrate.c)

[Anshuman Khandual]

On 07/09/2020 09:17 AM, Randy Dunlap wrote:
> On 7/8/20 7:29 PM, Andrew Morton wrote:
>> The mm-of-the-moment snapshot 2020-07-08-19-28 has been uploaded to
>>
>>    http://www.ozlabs.org/~akpm/mmotm/
>>
>> mmotm-readme.txt says
>>
>> README for mm-of-the-moment:
>>
>> http://www.ozlabs.org/~akpm/mmotm/
>>
>> This is a snapshot of my -mm patch queue.  Uploaded at random hopefully
>> more than once a week.
>>
> 
> on i386:
> 
> CONFIG_MIGRATION=y
> # CONFIG_TRANSPARENT_HUGEPAGE is not set
> 
> ../mm/migrate.c: In function âmigrate_pagesâ:
> ../mm/migrate.c:1528:19: error: âTHP_MIGRATION_SUCCESSâ undeclared (first use in this function); did you mean âPGMIGRATE_SUCCESSâ?
>    count_vm_events(THP_MIGRATION_SUCCESS, nr_thp_succeeded);
>                    ^~~~~~~~~~~~~~~~~~~~~
>                    PGMIGRATE_SUCCESS
> ../mm/migrate.c:1528:19: note: each undeclared identifier is reported only once for each function it appears in
> ../mm/migrate.c:1530:19: error: âTHP_MIGRATION_FAILUREâ undeclared (first use in this function); did you mean âTHP_MIGRATION_SUCCESSâ?
>    count_vm_events(THP_MIGRATION_FAILURE, nr_thp_failed);
>                    ^~~~~~~~~~~~~~~~~~~~~
>                    THP_MIGRATION_SUCCESS
> ../mm/migrate.c:1532:19: error: âTHP_MIGRATION_SPLITâ undeclared (first use in this function); did you mean âTHP_MIGRATION_FAILUREâ?
>    count_vm_events(THP_MIGRATION_SPLIT, nr_thp_split);
>                    ^~~~~~~~~~~~~~~~~~~
>                    THP_MIGRATION_FAILURE

These events should always be available without any config dependency
including CONFIG_TRANSPARENT_HUGEPAGE. Will fix this and update the
patch.