On 02/23/2017 12:24 PM, Naoya Horiguchi wrote:
> On Fri, Feb 17, 2017 at 10:05:41AM -0500, Zi Yan wrote:
>> From: Zi Yan <ziy@xxxxxxxxxx>
>>
>> This change adds a new migration mode called MIGRATE_MT to enable multi
>> threaded page copy implementation inside copy_huge_page() function by
>> selectively calling copy_pages_mthread() when requested. But it still
>> falls back using the regular page copy mechanism instead the previous
>> multi threaded attempt fails. It also attempts multi threaded copy for
>> regular pages.
>>
>> Signed-off-by: Zi Yan <zi.yan@xxxxxxxxxxxxxx>
>> Signed-off-by: Anshuman Khandual <khandual@xxxxxxxxxxxxxxxxxx>
>> ---
>> include/linux/migrate_mode.h | 1 +
>> mm/migrate.c | 25 ++++++++++++++++++-------
>> 2 files changed, 19 insertions(+), 7 deletions(-)
>>
>> diff --git a/include/linux/migrate_mode.h b/include/linux/migrate_mode.h
>> index 89c170060e5b..d344ad60f499 100644
>> --- a/include/linux/migrate_mode.h
>> +++ b/include/linux/migrate_mode.h
>> @@ -12,6 +12,7 @@ enum migrate_mode {
>> MIGRATE_SYNC_LIGHT = 1<<1,
>> MIGRATE_SYNC = 1<<2,
>> MIGRATE_ST = 1<<3,
>> + MIGRATE_MT = 1<<4,
>
> Could you update the comment above this definition to cover the new flags.
Sure, will do.
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