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=-10.1 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=ham 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 88032C433E2 for ; Tue, 23 Jun 2020 17:41:19 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5CC062078C for ; Tue, 23 Jun 2020 17:41:19 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=fb.com header.i=@fb.com header.b="haGqP6sG" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2387945AbgFWRlS (ORCPT ); Tue, 23 Jun 2020 13:41:18 -0400 Received: from mx0b-00082601.pphosted.com ([67.231.153.30]:48538 "EHLO mx0b-00082601.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2387533AbgFWRk5 (ORCPT ); Tue, 23 Jun 2020 13:40:57 -0400 Received: from pps.filterd (m0109332.ppops.net [127.0.0.1]) by mx0a-00082601.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 05NHegxC020519 for ; Tue, 23 Jun 2020 10:40:56 -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=NC30MMASir90zciBGPekuyvv2UxhvAZ3YeVCLcrd3gI=; b=haGqP6sGkSn86N+Mx0jNEjrQs2BaEO/IprMcKPwgARFJ0fGCbcroCecZ0O7KP8DeW0mH FRQ/iN4sHcD6KPcP/vBlC+BN+4Pt8g87I13Igh3vK+6FXBmGN1gxCrMpFSxqj9q0i3gw dqGYTxVKyXAuYMF9NyIlYOQ/OoJmlObjN8E= Received: from maileast.thefacebook.com ([163.114.130.16]) by mx0a-00082601.pphosted.com with ESMTP id 31uk21h60r-20 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NOT) for ; Tue, 23 Jun 2020 10:40:56 -0700 Received: from intmgw003.06.prn3.facebook.com (2620:10d:c0a8:1b::d) by mail.thefacebook.com (2620:10d:c0a8:82::e) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1979.3; Tue, 23 Jun 2020 10:40:46 -0700 Received: by devvm1291.vll0.facebook.com (Postfix, from userid 111017) id E23E9273E5F4; Tue, 23 Jun 2020 10:40:41 -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 v7 16/19] mm: memcg/slab: remove redundant check in memcg_accumulate_slabinfo() Date: Tue, 23 Jun 2020 10:40:34 -0700 Message-ID: <20200623174037.3951353-17-guro@fb.com> X-Mailer: git-send-email 2.24.1 In-Reply-To: <20200623174037.3951353-1-guro@fb.com> References: <20200623174037.3951353-1-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=2020-06-23_11:2020-06-23,2020-06-23 signatures=0 X-Proofpoint-Spam-Details: rule=fb_default_notspam policy=fb_default score=0 bulkscore=0 impostorscore=0 mlxscore=0 clxscore=1015 lowpriorityscore=0 spamscore=0 phishscore=0 malwarescore=0 mlxlogscore=844 adultscore=0 suspectscore=0 priorityscore=1501 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2006120000 definitions=main-2006230124 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 Reviewed-by: Shakeel Butt --- mm/slab_common.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/mm/slab_common.c b/mm/slab_common.c index 0618d3595c08..e546778030a2 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 2.26.2