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DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1755155917; 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=OVOlDlbXHrc0qK8WmHZtAp5nrF5N5O0JhEqs8GoP2r0=; b=APG3FsgB0a+RYjpSJGO4c1LihqXy9QGPmiooaO7F924zT12UIEihe5lAkUpI3C5qKlMr1D Tat7tkAgarpNYBo1Fu43jewCfW+bu97m6ujIgpHpM9FdKtC0FbFlgifGyi8sx/D+0zv+Yc Y+F9pBg+ctgE+m9e7DpbHUgoZqe0EfI= From: Ye Liu To: Andrew Morton , Vlastimil Babka Cc: Ye Liu , Suren Baghdasaryan , Michal Hocko , Brendan Jackman , Johannes Weiner , Zi Yan , linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: [PATCH] mm/page_alloc: Remove redundant pcp->free_count initialization in per_cpu_pages_init() Date: Thu, 14 Aug 2025 15:18:28 +0800 Message-ID: <20250814071828.12036-1-ye.liu@linux.dev> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Migadu-Flow: FLOW_OUT X-Rspam-User: X-Rspamd-Queue-Id: 2A103180004 X-Rspamd-Server: rspam06 X-Stat-Signature: g9mehs4spq3fc6utijzoqbpw4udon7em X-HE-Tag: 1755155919-310382 X-HE-Meta: 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 FHh7c4LB 9tPhJ3bNZUnZFEsA= 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: Ye Liu In per_cpu_pages_init(), pcp->free_count is explicitly initialized to 0, but this is redundant because the entire struct is already zeroed by memset(pcp, 0, sizeof(*pcp)). Signed-off-by: Ye Liu --- mm/page_alloc.c | 1 - 1 file changed, 1 deletion(-) diff --git a/mm/page_alloc.c b/mm/page_alloc.c index d1d037f97c5f..64872214bc7d 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -5946,7 +5946,6 @@ static void per_cpu_pages_init(struct per_cpu_pages *pcp, struct per_cpu_zonesta pcp->high_min = BOOT_PAGESET_HIGH; pcp->high_max = BOOT_PAGESET_HIGH; pcp->batch = BOOT_PAGESET_BATCH; - pcp->free_count = 0; } static void __zone_set_pageset_high_and_batch(struct zone *zone, unsigned long high_min, -- 2.43.0