I checked. __pmd() works.

BTW, my sparc32 fix was added in linux-next on August 11th
and __pmd() is there, too. This means __pmd() + my fix has survived
for almost a month in linux-next. It should be good.

--
Best Regards
Yan Zi

On 7 Sep 2017, at 23:43, Stephen Rothwell wrote:

> Hi all,
>
> On Fri, 8 Sep 2017 12:49:59 +1000 Stephen Rothwell <sfr@canb.auug.org.au> wrote:
>>
>> OK, so today I have applied this instead (which is the same as dropping
>> mm-thp-enable-thp-migration-in-generic-path-fix-fix-fix):
>>
>> From: Stephen Rothwell <sfr@canb.auug.org.au>
>> Date: Fri, 8 Sep 2017 12:40:39 +1000
>> Subject: [PATCH] mm-thp-enable-thp-migration-in-generic-path-fix-fix
>>
>> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
>> ---
>>  include/linux/swapops.h | 2 +-
>>  1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/include/linux/swapops.h b/include/linux/swapops.h
>> index b88441d284e2..291c4b534658 100644
>> --- a/include/linux/swapops.h
>> +++ b/include/linux/swapops.h
>> @@ -291,7 +291,7 @@ static inline swp_entry_t pmd_to_swp_entry(pmd_t pmd)
>>
>>  static inline pmd_t swp_entry_to_pmd(swp_entry_t entry)
>>  {
>> -	return (pmd_t){};
>> +	return __pmd(0);
>>  }
>>
>>  static inline int is_pmd_migration_entry(pmd_t pmd)
>
> That survived my "during the day" builds (including sparc32).  Some one
> should just check the overnight build results:
> https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fkisskb.ellerman.id.au%2Flinux-next&data=02%7C01%7Czi.yan%40cs.rutgers.edu%7C2fd0d9ae031f4c49a49208d4f66bcc34%7Cb92d2b234d35447093ff69aca6632ffe%7C1%7C0%7C636404390233531971&sdata=%2F2RdKh9%2Fl5P8F1sIticPEnTLJaWyt0xR%2BV6YXFBhsRs%3D&reserved=0
> -- 
> Cheers,
> Stephen Rothwell