diff options
| -rw-r--r-- | include/linux/mm_inline.h | 10 | ||||
| -rw-r--r-- | mm/migrate.c | 1 |
2 files changed, 11 insertions, 0 deletions
diff --git a/include/linux/mm_inline.h b/include/linux/mm_inline.h index f4fe593c1400..6f801c7b36e2 100644 --- a/include/linux/mm_inline.h +++ b/include/linux/mm_inline.h @@ -291,6 +291,12 @@ static inline bool lru_gen_del_folio(struct lruvec *lruvec, struct folio *folio, return true; } +static inline void folio_migrate_refs(struct folio *new, struct folio *old) +{ + unsigned long refs = READ_ONCE(old->flags) & LRU_REFS_MASK; + + set_mask_bits(&new->flags, LRU_REFS_MASK, refs); +} #else /* !CONFIG_LRU_GEN */ static inline bool lru_gen_enabled(void) @@ -313,6 +319,10 @@ static inline bool lru_gen_del_folio(struct lruvec *lruvec, struct folio *folio, return false; } +static inline void folio_migrate_refs(struct folio *new, struct folio *old) +{ + +} #endif /* CONFIG_LRU_GEN */ static __always_inline diff --git a/mm/migrate.c b/mm/migrate.c index dfa24e41e8f9..72c6657f4f72 100644 --- a/mm/migrate.c +++ b/mm/migrate.c @@ -695,6 +695,7 @@ void folio_migrate_flags(struct folio *newfolio, struct folio *folio) if (folio_test_idle(folio)) folio_set_idle(newfolio); + folio_migrate_refs(newfolio, folio); /* * Copy NUMA information to the new page, to prevent over-eager * future migrations of this same page. |