mm: replace list_move_tail() with add_page_to_lru_list_tail() (e7a1aaf2) · Commits · 戴 / test

mm/swap.c

+6 −8

Original line number	Diff line number	Diff line
		@@ -515,7 +515,6 @@ static void lru_deactivate_file_fn(struct page page, struct lruvec lruvec,
		del_page_from_lru_list(page, lruvec, lru + active);
		ClearPageActive(page);
		ClearPageReferenced(page);
		add_page_to_lru_list(page, lruvec, lru);

		if (PageWriteback(page) \|\| PageDirty(page)) {
		/*
		@@ -523,13 +522,14 @@ static void lru_deactivate_file_fn(struct page page, struct lruvec lruvec,
		* It can make readahead confusing. But race window
		* is _really_ small and it's non-critical problem.
		*/
		add_page_to_lru_list(page, lruvec, lru);
		SetPageReclaim(page);
		} else {
		/*
		* The page's writeback ends up during pagevec
		* We moves tha page into tail of inactive.
		*/
		list_move_tail(&page->lru, &lruvec->lists[lru]);
		add_page_to_lru_list_tail(page, lruvec, lru);
		__count_vm_event(PGROTATED);
		}

		@@ -844,17 +844,15 @@ void lru_add_page_tail(struct page page, struct page page_tail,
		get_page(page_tail);
		list_add_tail(&page_tail->lru, list);
		} else {
		struct list_head *list_head;
		/*
		* Head page has not yet been counted, as an hpage,
		* so we must account for each subpage individually.
		*
		* Use the standard add function to put page_tail on the list,
		* but then correct its position so they all end up in order.
		* Put page_tail on the list at the correct position
		* so they all end up in order.
		*/
		add_page_to_lru_list(page_tail, lruvec, page_lru(page_tail));
		list_head = page_tail->lru.prev;
		list_move_tail(&page_tail->lru, list_head);
		add_page_to_lru_list_tail(page_tail, lruvec,
		page_lru(page_tail));
		}

		if (!PageUnevictable(page))

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