From nobody Sun Apr 5 16:28:26 2026 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 277CEECAAD3 for ; Wed, 14 Sep 2022 10:56:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230012AbiINK40 (ORCPT ); Wed, 14 Sep 2022 06:56:26 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39904 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230154AbiINKz5 (ORCPT ); Wed, 14 Sep 2022 06:55:57 -0400 Received: from SHSQR01.spreadtrum.com (unknown [222.66.158.135]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A78005F96 for ; Wed, 14 Sep 2022 03:54:40 -0700 (PDT) Received: from SHSend.spreadtrum.com (bjmbx01.spreadtrum.com [10.0.64.7]) by SHSQR01.spreadtrum.com with ESMTPS id 28EArwni072561 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-SHA384 bits=256 verify=NO); Wed, 14 Sep 2022 18:53:58 +0800 (CST) (envelope-from zhaoyang.huang@unisoc.com) Received: from bj03382pcu.spreadtrum.com (10.0.74.65) by BJMBX01.spreadtrum.com (10.0.64.7) with Microsoft SMTP Server (TLS) id 15.0.1497.23; Wed, 14 Sep 2022 18:53:59 +0800 From: "zhaoyang.huang" To: Andrew Morton , Zhaoyang Huang , , , Subject: [PATCH] mm: No need to check pcp page when free it to buddy Date: Wed, 14 Sep 2022 18:53:40 +0800 Message-ID: <1663152820-608-1-git-send-email-zhaoyang.huang@unisoc.com> X-Mailer: git-send-email 1.9.1 MIME-Version: 1.0 X-Originating-IP: [10.0.74.65] X-ClientProxiedBy: SHCAS01.spreadtrum.com (10.0.1.201) To BJMBX01.spreadtrum.com (10.0.64.7) X-MAIL: SHSQR01.spreadtrum.com 28EArwni072561 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Zhaoyang Huang The pages on pcp list have been checked the validity from each entrance. It= is no need to check it again when free them back to buddy. Signed-off-by: Zhaoyang Huang --- mm/page_alloc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/page_alloc.c b/mm/page_alloc.c index e008a3d..131536e 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -1445,7 +1445,7 @@ static bool free_pcp_prepare(struct page *page, unsig= ned int order) =20 static bool bulkfree_pcp_prepare(struct page *page) { - return check_free_page(page); + return false; } #endif /* CONFIG_DEBUG_VM */ =20 --=20 1.9.1