From dfe5c51c6029af0a6c302a0d5dcde3cc4e298a47 Mon Sep 17 00:00:00 2001 From: Miaohe Lin Date: Wed, 30 Jun 2021 18:47:46 -0700 Subject: [PATCH] mm/huge_memory.c: use page->deferred_list Now that we can represent the location of ->deferred_list instead of ->mapping + ->index, make use of it to improve readability. Link: https://lkml.kernel.org/r/20210511134857.1581273-3-linmiaohe@huawei.com Signed-off-by: Miaohe Lin Reviewed-by: Yang Shi Reviewed-by: David Hildenbrand Cc: Alexey Dobriyan Cc: "Aneesh Kumar K . V" Cc: Anshuman Khandual Cc: Hugh Dickins Cc: Johannes Weiner Cc: Kirill A. Shutemov Cc: Matthew Wilcox Cc: Minchan Kim Cc: Ralph Campbell Cc: Rik van Riel Cc: Song Liu Cc: William Kucharski Cc: Zi Yan Cc: Mike Kravetz Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/huge_memory.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/mm/huge_memory.c b/mm/huge_memory.c index 6d2a0119fc58..a76b3835251d 100644 --- a/mm/huge_memory.c +++ b/mm/huge_memory.c @@ -2870,7 +2870,7 @@ static unsigned long deferred_split_scan(struct shrinker *shrink, spin_lock_irqsave(&ds_queue->split_queue_lock, flags); /* Take pin on all head pages to avoid freeing them under us */ list_for_each_safe(pos, next, &ds_queue->split_queue) { - page = list_entry((void *)pos, struct page, mapping); + page = list_entry((void *)pos, struct page, deferred_list); page = compound_head(page); if (get_page_unless_zero(page)) { list_move(page_deferred_list(page), &list); @@ -2885,7 +2885,7 @@ static unsigned long deferred_split_scan(struct shrinker *shrink, spin_unlock_irqrestore(&ds_queue->split_queue_lock, flags); list_for_each_safe(pos, next, &list) { - page = list_entry((void *)pos, struct page, mapping); + page = list_entry((void *)pos, struct page, deferred_list); if (!trylock_page(page)) goto next; /* split_huge_page() removes page from list on success */ -- 2.39.5