linux-kernel - [PATCH 05/11] mm/ksm: use a folio in scan_get_next_rmap

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Date: Wed, 20 Mar 2024 15:40:41 +0800
From: alexs@...nel.org
To: Izik Eidus <izik.eidus@...ellosystems.com>,
	Matthew Wilcox <willy@...radead.org>,
	Andrea Arcangeli <aarcange@...hat.com>,
	Hugh Dickins <hughd@...gle.com>,
	Chris Wright <chrisw@...s-sol.org>,
	kasong@...cent.com,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-mm@...ck.org (open list:MEMORY MANAGEMENT),
	linux-kernel@...r.kernel.org (open list)
Cc: linux-kernel@...r.kernel.org,
	"Alex Shi (tencent)" <alexs@...nel.org>
Subject: [PATCH 05/11] mm/ksm: use a folio in scan_get_next_rmap_item func

From: "Alex Shi (tencent)" <alexs@...nel.org>

Save a compound calls.

Signed-off-by: Alex Shi (tencent) <alexs@...nel.org>
Cc: Izik Eidus <izik.eidus@...ellosystems.com>
Cc: Matthew Wilcox <willy@...radead.org>
Cc: Andrea Arcangeli <aarcange@...hat.com>
Cc: Hugh Dickins <hughd@...gle.com>
Cc: Chris Wright <chrisw@...s-sol.org>
---
 mm/ksm.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/mm/ksm.c b/mm/ksm.c
index f57817ef75bf..165a3e4162bf 100644
--- a/mm/ksm.c
+++ b/mm/ksm.c
@@ -2597,14 +2597,14 @@ static struct ksm_rmap_item *scan_get_next_rmap_item(struct page **page)
 		 */
 		if (!ksm_merge_across_nodes) {
 			struct ksm_stable_node *stable_node, *next;
-			struct page *page;
+			struct folio *folio;
 
 			list_for_each_entry_safe(stable_node, next,
 						 &migrate_nodes, list) {
-				page = get_ksm_page(stable_node,
+				folio = get_ksm_page(stable_node,
 						    GET_KSM_PAGE_NOLOCK);
-				if (page)
-					put_page(page);
+				if (folio)
+					folio_put(folio);
 				cond_resched();
 			}
 		}
-- 
2.43.0