[PATCH RFC 14/29] mm/migrate: remove __ClearPageMovable()
David Hildenbrand
david at redhat.com
Tue Jun 24 01:43:42 AEST 2025
On 20.06.25 22:15, Zi Yan wrote:
> On 18 Jun 2025, at 13:39, David Hildenbrand wrote:
>
>> Unused, let's remove it.
>>
>> The Chinese docs in Documentation/translations/zh_CN/mm/page_migration.rst
>> still mention it, but that whole docs is destined to get outdated and
>> updated by somebody that actually speaks that language.
>>
>> Signed-off-by: David Hildenbrand <david at redhat.com>
>> ---
>> include/linux/migrate.h | 4 ----
>> mm/compaction.c | 11 -----------
>> 2 files changed, 15 deletions(-)
>>
>
> The comment for struct movable_operations needs an update too.
> "
> If page migration is successful, the driver should call
> __ClearPageMovable(@src) and return MIGRATEPAGE_SUCCESS.
> "
Ah, thanks, it will simply be "should return MIGRATEPAGE_SUCCESS".
There is more magic to it (the driver must setup the dst page as
movable), but probably that might all be reworked soon.
--
Cheers,
David / dhildenb
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