linux-kernel - [PATCH] mm/vmscan: Modify the assignment logic of the scan and total

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Message-Id: <20250417092422.1333620-1-hao.ge@linux.dev>
Date: Thu, 17 Apr 2025 17:24:22 +0800
From: Hao Ge <hao.ge@...ux.dev>
To: Andrew Morton <akpm@...ux-foundation.org>
Cc: linux-mm@...ck.org,
	linux-kernel@...r.kernel.org,
	Hao Ge <gehao@...inos.cn>
Subject: [PATCH] mm/vmscan: Modify the assignment logic of the scan and total_scan variables

From: Hao Ge <gehao@...inos.cn>

The scan and total_scan variables can be initialized to 0
when they are defined, replacing the separate assignment statements.

Signed-off-by: Hao Ge <gehao@...inos.cn>
---
 mm/vmscan.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/mm/vmscan.c b/mm/vmscan.c
index b620d74b0f66..bf360ac4f1cf 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -1725,13 +1725,11 @@ static unsigned long isolate_lru_folios(unsigned long nr_to_scan,
 	unsigned long nr_taken = 0;
 	unsigned long nr_zone_taken[MAX_NR_ZONES] = { 0 };
 	unsigned long nr_skipped[MAX_NR_ZONES] = { 0, };
-	unsigned long skipped = 0;
-	unsigned long scan, total_scan, nr_pages;
+	unsigned long skipped = 0, total_scan = 0, scan = 0;
+	unsigned long nr_pages;
 	unsigned long max_nr_skipped = 0;
 	LIST_HEAD(folios_skipped);
 
-	total_scan = 0;
-	scan = 0;
 	while (scan < nr_to_scan && !list_empty(src)) {
 		struct list_head *move_to = src;
 		struct folio *folio;
-- 
2.25.1