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DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1744881924; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=SfwgROIDadVbaR4igOtSawlNRohOkl+zEoFeXeINbfI=; b=UWbiXbiXvblAzIZ0n9b/4C4xtKxi50muEZGaj8aqV3broqUSyrylwL4vcvzbBhhIeZOSXa 2ejGRKHnzq+Ja7EbJxfJzQx18cRczNmw3k+PJ9D5mikCmJjlT3CPQ8vj2Z1dX9g81HJ1Bb kZ52mqafbuIULvf9h2kHVs6MbpacrKg= From: Hao Ge To: Andrew Morton Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, Hao Ge Subject: [PATCH] mm/vmscan: Modify the assignment logic of the scan and total_scan variables Date: Thu, 17 Apr 2025 17:24:22 +0800 Message-Id: <20250417092422.1333620-1-hao.ge@linux.dev> MIME-Version: 1.0 X-Migadu-Flow: FLOW_OUT X-Stat-Signature: sd7uh4nru6mf5cofk9z46d9qm6jjqjgp X-Rspamd-Queue-Id: A67314000A X-Rspam-User: X-Rspamd-Server: rspam05 X-HE-Tag: 1744881926-427526 X-HE-Meta: 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 63eft7PE 9OItxeJcdVGPHlLZnFcT++Nqr3zGF1ejdYlelKopJPsoB6dK12l2Gp+HoaVQw+oh0vP6CADYRZWzH/WkQt42JKKlfLDwxqidawAkFh2vsc3vAn7jznVhmVz0yKGfXnGph098rakE0Mun9E3UdoPJuvI8QEh0Izf+RyT9+XqFCGqkXkSCFw4A6JMqS67bd3ebL+aJmS4p6wT2NN+BoPIbJI4KAOg== X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: From: Hao Ge 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 Acked-by: Dev Jain --- 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;