From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D840DC433DF for ; Wed, 27 May 2020 22:35:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id AE1A2207D8 for ; Wed, 27 May 2020 22:35:11 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=fb.com header.i=@fb.com header.b="AAhybOrN" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726966AbgE0WfK (ORCPT ); Wed, 27 May 2020 18:35:10 -0400 Received: from mx0a-00082601.pphosted.com ([67.231.145.42]:35750 "EHLO mx0a-00082601.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726267AbgE0WeQ (ORCPT ); Wed, 27 May 2020 18:34:16 -0400 Received: from pps.filterd (m0109333.ppops.net [127.0.0.1]) by mx0a-00082601.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 04RMFd5l014025 for ; Wed, 27 May 2020 15:34:15 -0700 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=fb.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-transfer-encoding : content-type; s=facebook; bh=zcj5cOhikHZGYmyFMPbMGzx/9MYXkskZJ2rJF+Ro4jw=; b=AAhybOrNvd5kqHdD3uTnGW8lcSsoiGVaDsnnfb12h9nNTzsGtHeuidErcBPvjIlGhUdo GsvlGv/Rc5s6YZMIZJSkZkL1eBYJwfhove0ABX5GcSYyP5/D+nhl335JtlTZt1dQGquZ kxW9hb6dxgrCRbr75s91XpIMuNkFxL5MFVA= Received: from mail.thefacebook.com ([163.114.132.120]) by mx0a-00082601.pphosted.com with ESMTP id 319yh5gy5u-2 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NOT) for ; Wed, 27 May 2020 15:34:15 -0700 Received: from intmgw002.06.prn3.facebook.com (2620:10d:c085:208::f) by mail.thefacebook.com (2620:10d:c085:21d::5) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1979.3; Wed, 27 May 2020 15:34:15 -0700 Received: by devvm1291.vll0.facebook.com (Postfix, from userid 111017) id DE19E1669039; Wed, 27 May 2020 15:34:07 -0700 (PDT) Smtp-Origin-Hostprefix: devvm From: Roman Gushchin Smtp-Origin-Hostname: devvm1291.vll0.facebook.com To: Andrew Morton , Christoph Lameter CC: Johannes Weiner , Michal Hocko , Shakeel Butt , , Vlastimil Babka , , , Roman Gushchin Smtp-Origin-Cluster: vll0c01 Subject: [PATCH v5 16/19] mm: memcg/slab: remove redundant check in memcg_accumulate_slabinfo() Date: Wed, 27 May 2020 15:34:01 -0700 Message-ID: <20200527223404.1008856-17-guro@fb.com> X-Mailer: git-send-email 2.24.1 In-Reply-To: <20200527223404.1008856-1-guro@fb.com> References: <20200527223404.1008856-1-guro@fb.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-FB-Internal: Safe Content-Type: text/plain X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.216,18.0.687 definitions=2020-05-27_03:2020-05-27,2020-05-27 signatures=0 X-Proofpoint-Spam-Details: rule=fb_default_notspam policy=fb_default score=0 clxscore=1015 bulkscore=0 mlxlogscore=812 impostorscore=0 spamscore=0 phishscore=0 mlxscore=0 malwarescore=0 adultscore=0 priorityscore=1501 suspectscore=0 lowpriorityscore=0 cotscore=-2147483648 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2004280000 definitions=main-2005270170 X-FB-Internal: deliver Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org memcg_accumulate_slabinfo() is never called with a non-root kmem_cache as a first argument, so the is_root_cache(s) check is redundant and can be removed without any functional change. Signed-off-by: Roman Gushchin Reviewed-by: Vlastimil Babka --- mm/slab_common.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/mm/slab_common.c b/mm/slab_common.c index c045afb9724e..52164ad0f197 100644 --- a/mm/slab_common.c +++ b/mm/slab_common.c @@ -1087,9 +1087,6 @@ memcg_accumulate_slabinfo(struct kmem_cache *s, str= uct slabinfo *info) struct kmem_cache *c; struct slabinfo sinfo; =20 - if (!is_root_cache(s)) - return; - c =3D memcg_cache(s); if (c) { memset(&sinfo, 0, sizeof(sinfo)); --=20 2.25.4