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 93585C54FCB for ; Wed, 22 Apr 2020 20:48:10 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 4940D2077D for ; Wed, 22 Apr 2020 20:48:10 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=fb.com header.i=@fb.com header.b="DaY4T/zG" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 4940D2077D Authentication-Results: mail.kernel.org; dmarc=fail (p=quarantine dis=none) header.from=fb.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 91DC18E0018; Wed, 22 Apr 2020 16:47:31 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 8A5598E0017; Wed, 22 Apr 2020 16:47:31 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 792D08E0018; Wed, 22 Apr 2020 16:47:31 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0245.hostedemail.com [216.40.44.245]) by kanga.kvack.org (Postfix) with ESMTP id 5AAF18E0017 for ; Wed, 22 Apr 2020 16:47:31 -0400 (EDT) Received: from smtpin21.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay05.hostedemail.com (Postfix) with ESMTP id 1D9AD181AEF07 for ; Wed, 22 Apr 2020 20:47:31 +0000 (UTC) X-FDA: 76736676702.21.taste80_4193f1d012058 X-HE-Tag: taste80_4193f1d012058 X-Filterd-Recvd-Size: 3587 Received: from mx0a-00082601.pphosted.com (mx0a-00082601.pphosted.com [67.231.145.42]) by imf35.hostedemail.com (Postfix) with ESMTP for ; Wed, 22 Apr 2020 20:47:30 +0000 (UTC) Received: from pps.filterd (m0044010.ppops.net [127.0.0.1]) by mx0a-00082601.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 03MKeMlk018783 for ; Wed, 22 Apr 2020 13:47:29 -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=Hykg6WsrgVmw6TWTlba89R7ac35mb59AST82Spw8Ueo=; b=DaY4T/zGNAQpSLQNeTvBNaMch+Xpvg73/m5UGXZNA7IWFl2SBzvN8gl/xiyoB3ukARyM RABGxT9guKB4pWOwvuaIp1hkzKcsakCE9480BcUE9ZVujNT4Gow4AccBpOOwlIYBTJ5f OGnTDdNuPWJOOLaO0AlmYcbOul2cQkKM3G4= Received: from mail.thefacebook.com ([163.114.132.120]) by mx0a-00082601.pphosted.com with ESMTP id 30ghjpuj58-15 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NOT) for ; Wed, 22 Apr 2020 13:47:29 -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 15.1.1847.3; Wed, 22 Apr 2020 13:47:25 -0700 Received: by devvm4439.prn2.facebook.com (Postfix, from userid 111017) id 023A522935817; Wed, 22 Apr 2020 13:47:17 -0700 (PDT) Smtp-Origin-Hostprefix: devvm From: Roman Gushchin Smtp-Origin-Hostname: devvm4439.prn2.facebook.com To: Andrew Morton CC: Johannes Weiner , Michal Hocko , , , , Roman Gushchin Smtp-Origin-Cluster: prn2c23 Subject: [PATCH v3 16/19] mm: memcg/slab: remove redundant check in memcg_accumulate_slabinfo() Date: Wed, 22 Apr 2020 13:47:05 -0700 Message-ID: <20200422204708.2176080-17-guro@fb.com> X-Mailer: git-send-email 2.24.1 In-Reply-To: <20200422204708.2176080-1-guro@fb.com> References: <20200422204708.2176080-1-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=2.50.10434:6.0.138,18.0.676 definitions=2020-04-22_07:2020-04-22,2020-04-22 signatures=0 X-Proofpoint-Spam-Details: rule=fb_default_notspam policy=fb_default score=0 adultscore=0 mlxlogscore=765 spamscore=0 impostorscore=0 lowpriorityscore=0 priorityscore=1501 phishscore=0 clxscore=1015 suspectscore=0 bulkscore=0 mlxscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2003020000 definitions=main-2004220158 X-FB-Internal: deliver X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: 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 --- 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 2.25.3