From patchwork Thu Nov 19 17:37:50 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Roman Gushchin X-Patchwork-Id: 11918435 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=-18.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,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 BA9A9C56201 for ; Thu, 19 Nov 2020 17:38:08 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 31576246E8 for ; Thu, 19 Nov 2020 17:38:07 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=fb.com header.i=@fb.com header.b="Vo6LRX9B" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 31576246E8 Authentication-Results: mail.kernel.org; dmarc=fail (p=reject 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 774A36B007B; Thu, 19 Nov 2020 12:38:05 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 65C0C6B0075; Thu, 19 Nov 2020 12:38:05 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 48ABC6B0074; Thu, 19 Nov 2020 12:38:05 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0047.hostedemail.com [216.40.44.47]) by kanga.kvack.org (Postfix) with ESMTP id 092466B0071 for ; Thu, 19 Nov 2020 12:38:04 -0500 (EST) Received: from smtpin11.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay05.hostedemail.com (Postfix) with ESMTP id AA042181AEF21 for ; Thu, 19 Nov 2020 17:38:04 +0000 (UTC) X-FDA: 77501876088.11.bun83_4810dfc27344 Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin11.hostedemail.com (Postfix) with ESMTP id 895FD180F8B86 for ; Thu, 19 Nov 2020 17:38:04 +0000 (UTC) X-HE-Tag: bun83_4810dfc27344 X-Filterd-Recvd-Size: 4056 Received: from mx0a-00082601.pphosted.com (mx0a-00082601.pphosted.com [67.231.145.42]) by imf19.hostedemail.com (Postfix) with ESMTP for ; Thu, 19 Nov 2020 17:38:03 +0000 (UTC) Received: from pps.filterd (m0148461.ppops.net [127.0.0.1]) by mx0a-00082601.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 0AJHYk2Q004639 for ; Thu, 19 Nov 2020 09:38:03 -0800 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=8ebA+INnP+S9dh1GI2+WmeYXpW5UeJvL7rqO27RxywU=; b=Vo6LRX9BU2o/Yb4HMs14fgwD/AitFLNhrmerAZUvDJj2WXqWGrj5HWioSoe41m22eRpc Eef599gP+dxpgYEG0UCMKPAc34E0OPsP5jymriYO2vbBZOEfwOf9RoDZeqDMl9bJCQol yYklE0PhssYlheOQ45c1O2+6tns+BoXXrKU= Received: from mail.thefacebook.com ([163.114.132.120]) by mx0a-00082601.pphosted.com with ESMTP id 34wbepretx-12 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NOT) for ; Thu, 19 Nov 2020 09:38:02 -0800 Received: from intmgw002.41.prn1.facebook.com (2620:10d:c085:208::f) by mail.thefacebook.com (2620:10d:c085:21d::7) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1979.3; Thu, 19 Nov 2020 09:38:01 -0800 Received: by devvm3388.prn0.facebook.com (Postfix, from userid 111017) id 0FD7C145BD13; Thu, 19 Nov 2020 09:37:57 -0800 (PST) From: Roman Gushchin To: CC: , , , , , , , Subject: [PATCH bpf-next v7 30/34] bpf: eliminate rlimit-based memory accounting for xskmap maps Date: Thu, 19 Nov 2020 09:37:50 -0800 Message-ID: <20201119173754.4125257-31-guro@fb.com> X-Mailer: git-send-email 2.24.1 In-Reply-To: <20201119173754.4125257-1-guro@fb.com> References: <20201119173754.4125257-1-guro@fb.com> MIME-Version: 1.0 X-FB-Internal: Safe X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.312,18.0.737 definitions=2020-11-19_09:2020-11-19,2020-11-19 signatures=0 X-Proofpoint-Spam-Details: rule=fb_default_notspam policy=fb_default score=0 mlxlogscore=850 adultscore=0 phishscore=0 bulkscore=0 clxscore=1015 mlxscore=0 priorityscore=1501 spamscore=0 malwarescore=0 suspectscore=13 lowpriorityscore=0 impostorscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2009150000 definitions=main-2011190125 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: Do not use rlimit-based memory accounting for xskmap maps. It has been replaced with the memcg-based memory accounting. Signed-off-by: Roman Gushchin Acked-by: Song Liu --- net/xdp/xskmap.c | 12 ++---------- 1 file changed, 2 insertions(+), 10 deletions(-) diff --git a/net/xdp/xskmap.c b/net/xdp/xskmap.c index eceea51182d9..217e224698b9 100644 --- a/net/xdp/xskmap.c +++ b/net/xdp/xskmap.c @@ -75,9 +75,8 @@ static void xsk_map_sock_delete(struct xdp_sock *xs, static struct bpf_map *xsk_map_alloc(union bpf_attr *attr) { - struct bpf_map_memory mem; - int err, numa_node; struct xsk_map *m; + int numa_node; u64 size; if (!capable(CAP_NET_ADMIN)) @@ -91,18 +90,11 @@ static struct bpf_map *xsk_map_alloc(union bpf_attr *attr) numa_node = bpf_map_attr_numa_node(attr); size = struct_size(m, xsk_map, attr->max_entries); - err = bpf_map_charge_init(&mem, size); - if (err < 0) - return ERR_PTR(err); - m = bpf_map_area_alloc(size, numa_node); - if (!m) { - bpf_map_charge_finish(&mem); + if (!m) return ERR_PTR(-ENOMEM); - } bpf_map_init_from_attr(&m->map, attr); - bpf_map_charge_move(&m->map.memory, &mem); spin_lock_init(&m->lock); return &m->map;