[v2,10/18] mm: Allow non-hugetlb large folios to be batch processed

Commit Message

Matthew Wilcox Feb. 17, 2024, 2:25 a.m. UTC

Hugetlb folios still get special treatment, but normal large folios
can now be freed by free_unref_folios().  This should have a reasonable
performance impact, TBD.

Signed-off-by: Matthew Wilcox (Oracle) <[e-mail]>
Reviewed-by: Ryan Roberts <[e-mail]>
---
 mm/swap.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

Patch

diff --git a/mm/swap.c b/mm/swap.c
index 21c2df0f7928..8bd15402cd8f 100644
--- a/mm/swap.c
+++ b/mm/swap.c
@@ -1000,12 +1000,13 @@  void folios_put(struct folio_batch *folios)
 		if (!folio_put_testzero(folio))
 			continue;
 
-		if (folio_test_large(folio)) {
+		/* hugetlb has its own memcg */
+		if (folio_test_hugetlb(folio)) {
 			if (lruvec) {
 				unlock_page_lruvec_irqrestore(lruvec, flags);
 				lruvec = NULL;
 			}
-			__folio_put_large(folio);
+			free_huge_folio(folio);
 			continue;
 		}