Re: [PATCH RFC 14/29] mm/migrate: remove __ClearPageMovable()

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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still mention it, but that whole docs is destined to get outdated and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@xxxxxxxxxx>
---
  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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