[PATCH v2 05/29] mm/balloon_compaction: make PageOffline sticky until the page is freed
David Hildenbrand
david at redhat.com
Fri Jul 4 20:24:59 AEST 2025
Let the page freeing code handle clearing the page type. Being able to
identify balloon pages until actually freed is a requirement for
upcoming movable_ops migration changes.
Acked-by: Zi Yan <ziy at nvidia.com>
Acked-by: Harry Yoo <harry.yoo at oracle.com>
Reviewed-by: Lorenzo Stoakes <lorenzo.stoakes at oracle.com>
Signed-off-by: David Hildenbrand <david at redhat.com>
---
include/linux/balloon_compaction.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/linux/balloon_compaction.h b/include/linux/balloon_compaction.h
index b9f19da37b089..bfc6e50bd004b 100644
--- a/include/linux/balloon_compaction.h
+++ b/include/linux/balloon_compaction.h
@@ -140,7 +140,7 @@ static inline void balloon_page_finalize(struct page *page)
__ClearPageMovable(page);
set_page_private(page, 0);
}
- __ClearPageOffline(page);
+ /* PageOffline is sticky until the page is freed to the buddy. */
}
/*
--
2.49.0
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