From f1264e9531b0fbadf88e0b9c8143c546343b481c Mon Sep 17 00:00:00 2001 From: Kefeng Wang Date: Tue, 27 Aug 2024 19:47:27 +0800 Subject: mm: migrate: add isolate_folio_to_list() Add isolate_folio_to_list() helper to try to isolate HugeTLB, no-LRU movable and LRU folios to a list, which will be reused by do_migrate_range() from memory hotplug soon, also drop the mf_isolate_folio() since we could directly use new helper in the soft_offline_in_use_page(). Link: https://lkml.kernel.org/r/20240827114728.3212578-5-wangkefeng.wang@huawei.com Signed-off-by: Kefeng Wang Acked-by: David Hildenbrand Acked-by: Miaohe Lin Tested-by: Miaohe Lin Cc: Dan Carpenter Cc: Jonathan Cameron Cc: Naoya Horiguchi Cc: Oscar Salvador Signed-off-by: Andrew Morton --- include/linux/migrate.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include/linux/migrate.h') diff --git a/include/linux/migrate.h b/include/linux/migrate.h index 644be30b69c8..002e49b2ebd9 100644 --- a/include/linux/migrate.h +++ b/include/linux/migrate.h @@ -70,6 +70,7 @@ int migrate_pages(struct list_head *l, new_folio_t new, free_folio_t free, unsigned int *ret_succeeded); struct folio *alloc_migration_target(struct folio *src, unsigned long private); bool isolate_movable_page(struct page *page, isolate_mode_t mode); +bool isolate_folio_to_list(struct folio *folio, struct list_head *list); int migrate_huge_page_move_mapping(struct address_space *mapping, struct folio *dst, struct folio *src); @@ -91,6 +92,8 @@ static inline struct folio *alloc_migration_target(struct folio *src, { return NULL; } static inline bool isolate_movable_page(struct page *page, isolate_mode_t mode) { return false; } +static inline bool isolate_folio_to_list(struct folio *folio, struct list_head *list) + { return false; } static inline int migrate_huge_page_move_mapping(struct address_space *mapping, struct folio *dst, struct folio *src) -- cgit v1.2.3