From 2f58e5de662726312fd98259a07ab945210999d1 Mon Sep 17 00:00:00 2001 From: "Matthew Wilcox (Oracle)" Date: Fri, 17 Jun 2022 18:50:12 +0100 Subject: mm/swap: convert put_pages_list to use folios Pages linked through the LRU list cannot be tail pages as ->compound_head is in a union with one of the words of the list_head, and they cannot be ZONE_DEVICE pages as ->pgmap is in a union with the same word. Saves 60 bytes of text by removing a call to page_is_fake_head(). Link: https://lkml.kernel.org/r/20220617175020.717127-15-willy@infradead.org Signed-off-by: Matthew Wilcox (Oracle) Signed-off-by: Andrew Morton --- mm/swap.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) (limited to 'mm/swap.c') diff --git a/mm/swap.c b/mm/swap.c index 417dc32534c1..a5a91aec83da 100644 --- a/mm/swap.c +++ b/mm/swap.c @@ -138,19 +138,19 @@ EXPORT_SYMBOL(__put_page); */ void put_pages_list(struct list_head *pages) { - struct page *page, *next; + struct folio *folio, *next; - list_for_each_entry_safe(page, next, pages, lru) { - if (!put_page_testzero(page)) { - list_del(&page->lru); + list_for_each_entry_safe(folio, next, pages, lru) { + if (!folio_put_testzero(folio)) { + list_del(&folio->lru); continue; } - if (PageHead(page)) { - list_del(&page->lru); - __put_compound_page(page); + if (folio_test_large(folio)) { + list_del(&folio->lru); + __put_compound_page(&folio->page); continue; } - /* Cannot be PageLRU because it's passed to us using the lru */ + /* LRU flag must be clear because it's passed using the lru */ } free_unref_page_list(pages); -- cgit