From nobody Mon Jun 22 22:25:38 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 65960C433FE for ; Wed, 16 Mar 2022 03:00:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1353415AbiCPDBL (ORCPT ); Tue, 15 Mar 2022 23:01:11 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45630 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233363AbiCPDBI (ORCPT ); Tue, 15 Mar 2022 23:01:08 -0400 Received: from out199-10.us.a.mail.aliyun.com (out199-10.us.a.mail.aliyun.com [47.90.199.10]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 707365D669; Tue, 15 Mar 2022 19:59:54 -0700 (PDT) X-Alimail-AntiSpam: AC=PASS;BC=-1|-1;BR=01201311R631e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=e01e04407;MF=xianting.tian@linux.alibaba.com;NM=1;PH=DS;RN=8;SR=0;TI=SMTPD_---0V7KZLHo_1647399589; Received: from localhost(mailfrom:xianting.tian@linux.alibaba.com fp:SMTPD_---0V7KZLHo_1647399589) by smtp.aliyun-inc.com(127.0.0.1); Wed, 16 Mar 2022 10:59:50 +0800 From: Xianting Tian To: adobriyan@gmail.com, shy828301@gmail.com, sashal@kernel.org, akpm@linux-foundation.org, linmiaohe@huawei.com Cc: linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, Xianting Tian Subject: [PATCH] mm: proc: remove redundant page validation of pte_page Date: Wed, 16 Mar 2022 10:59:47 +0800 Message-Id: <20220316025947.328276-1-xianting.tian@linux.alibaba.com> X-Mailer: git-send-email 2.17.1 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" pte_page() always returns a valid page, so remove the redundant page validation, as we did in many other places. Signed-off-by: Xianting Tian Reviewed-by: Chaitanya Kulkarni --- fs/proc/task_mmu.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c index f46060eb9..a843d13e2 100644 --- a/fs/proc/task_mmu.c +++ b/fs/proc/task_mmu.c @@ -1873,8 +1873,6 @@ static int gather_hugetlb_stats(pte_t *pte, unsigned = long hmask, return 0; =20 page =3D pte_page(huge_pte); - if (!page) - return 0; =20 md =3D walk->private; gather_stats(page, md, pte_dirty(huge_pte), 1); --=20 2.17.1