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authorMatthew Wilcox (Oracle)2022-06-17 18:50:12 +0100
committerakpm2022-07-03 18:08:47 -0700
commit2f58e5de662726312fd98259a07ab945210999d1 (patch)
treeb3990b71ceeef2050a263130cb876b8b45720aef
parentab5e653ee810024a1e170c75f973a252053f7467 (diff)
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) <willy@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
-rw-r--r--mm/swap.c16
1 files changed, 8 insertions, 8 deletions
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);