From nobody Tue Apr 7 16:31:42 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 85D26ECAAA2 for ; Fri, 26 Aug 2022 03:15:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S244928AbiHZDPN (ORCPT ); Thu, 25 Aug 2022 23:15:13 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36256 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S244850AbiHZDPE (ORCPT ); Thu, 25 Aug 2022 23:15:04 -0400 Received: from SHSQR01.spreadtrum.com (unknown [222.66.158.135]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A724212752 for ; Thu, 25 Aug 2022 20:14:59 -0700 (PDT) Received: from SHSend.spreadtrum.com (bjmbx01.spreadtrum.com [10.0.64.7]) by SHSQR01.spreadtrum.com with ESMTPS id 27Q3CVPW028931 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-SHA384 bits=256 verify=NO); Fri, 26 Aug 2022 11:12:31 +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; Fri, 26 Aug 2022 11:12:30 +0800 From: "zhaoyang.huang" To: Andrew Morton , Catalin Marinas , Zhaoyang Huang , , , Subject: [PATCH] mm: skip reserved page for kmem leak scanning Date: Fri, 26 Aug 2022 11:12:10 +0800 Message-ID: <1661483530-11308-1-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 27Q3CVPW028931 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 It is no need to scan reserved page, skip it. Signed-off-by: Zhaoyang Huang --- mm/kmemleak.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/kmemleak.c b/mm/kmemleak.c index a182f5d..c546250 100644 --- a/mm/kmemleak.c +++ b/mm/kmemleak.c @@ -1471,7 +1471,7 @@ static void kmemleak_scan(void) if (page_zone(page) !=3D zone) continue; /* only scan if page is in use */ - if (page_count(page) =3D=3D 0) + if (page_count(page) =3D=3D 0 && !PageReserved(page)) continue; scan_block(page, page + 1, NULL); if (!(pfn & 63)) --=20 1.9.1