linux-kernel - [PATCH 4/7] mm: Use folios_put() in __folio_batch

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Message-Id: <20230821204425.2940496-4-willy@infradead.org>
Date:   Mon, 21 Aug 2023 21:44:22 +0100
From:   "Matthew Wilcox (Oracle)" <willy@...radead.org>
To:     Mateusz Guzik <mjguzik@...il.com>, linux-kernel@...r.kernel.org,
        dennis@...nel.org, tj@...nel.org, cl@...ux.com,
        akpm@...ux-foundation.org, shakeelb@...gle.com, linux-mm@...ck.org
Cc:     "Matthew Wilcox (Oracle)" <willy@...radead.org>
Subject: [PATCH 4/7] mm: Use folios_put() in __folio_batch_release()

There's no need to indirect through release_pages() and iterate
over this batch of folios an extra time; we can just use the batch
that we have.

Signed-off-by: Matthew Wilcox (Oracle) <willy@...radead.org>
---
 mm/swap.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/swap.c b/mm/swap.c
index 11ca25d4843f..9d31185dc27b 100644
--- a/mm/swap.c
+++ b/mm/swap.c
@@ -1072,7 +1072,7 @@ void __folio_batch_release(struct folio_batch *fbatch)
 		lru_add_drain();
 		fbatch->percpu_pvec_drained = true;
 	}
-	release_pages(fbatch->folios, folio_batch_count(fbatch));
+	folios_put(fbatch);
 	folio_batch_reinit(fbatch);
 }
 EXPORT_SYMBOL(__folio_batch_release);
-- 
2.40.1