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=-12.8 required=3.0 tests=BAYES_00,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 A9505C6369E for ; Tue, 17 Nov 2020 03:42:10 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 57A1820643 for ; Tue, 17 Nov 2020 03:42:10 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=fb.com header.i=@fb.com header.b="DC0xxdmm" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727412AbgKQDlY (ORCPT ); Mon, 16 Nov 2020 22:41:24 -0500 Received: from mx0b-00082601.pphosted.com ([67.231.153.30]:34582 "EHLO mx0b-00082601.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727188AbgKQDlV (ORCPT ); Mon, 16 Nov 2020 22:41:21 -0500 Received: from pps.filterd (m0148460.ppops.net [127.0.0.1]) by mx0a-00082601.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 0AH3dv93004416 for ; Mon, 16 Nov 2020 19:41:20 -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=UcQLkGzmCCzxtZnn+cvMyPMDVngBz1PvcNY/9AFbCeE=; b=DC0xxdmmh+yyA2hSFvvy5ZmhILwmdJeM7IdmzLZvSiaLMK8vUb2KcvRrO+P8T/PQOjVq mmKPFoa6BLKcPwbsaG+TXDzVJec600WNj98ClvtuTgBunD20qXzUg8aZdpCos/GdJDD/ bnxpoT8I12ZzE0IGzz/tfHnirHhtQSepvmw= Received: from maileast.thefacebook.com ([163.114.130.16]) by mx0a-00082601.pphosted.com with ESMTP id 34tdmruh5x-5 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NOT) for ; Mon, 16 Nov 2020 19:41:20 -0800 Received: from intmgw002.41.prn1.facebook.com (2620:10d:c0a8:1b::d) by mail.thefacebook.com (2620:10d:c0a8:83::5) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1979.3; Mon, 16 Nov 2020 19:41:17 -0800 Received: by devvm3388.prn0.facebook.com (Postfix, from userid 111017) id 7ED4DC63A87; Mon, 16 Nov 2020 19:41:10 -0800 (PST) From: Roman Gushchin To: CC: , , , , , , , Subject: [PATCH bpf-next v6 24/34] bpf: eliminate rlimit-based memory accounting for lpm_trie maps Date: Mon, 16 Nov 2020 19:40:58 -0800 Message-ID: <20201117034108.1186569-25-guro@fb.com> X-Mailer: git-send-email 2.24.1 In-Reply-To: <20201117034108.1186569-1-guro@fb.com> References: <20201117034108.1186569-1-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=2.50.10434:6.0.312,18.0.737 definitions=2020-11-17_01:2020-11-13,2020-11-17 signatures=0 X-Proofpoint-Spam-Details: rule=fb_default_notspam policy=fb_default score=0 malwarescore=0 lowpriorityscore=0 clxscore=1015 priorityscore=1501 mlxscore=0 suspectscore=38 adultscore=0 phishscore=0 mlxlogscore=728 spamscore=0 bulkscore=0 impostorscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2009150000 definitions=main-2011170027 X-FB-Internal: deliver Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Do not use rlimit-based memory accounting for lpm_trie maps. It has been replaced with the memcg-based memory accounting. Signed-off-by: Roman Gushchin Acked-by: Song Liu --- kernel/bpf/lpm_trie.c | 13 ------------- 1 file changed, 13 deletions(-) diff --git a/kernel/bpf/lpm_trie.c b/kernel/bpf/lpm_trie.c index c9ebfb009955..4eaa48096bef 100644 --- a/kernel/bpf/lpm_trie.c +++ b/kernel/bpf/lpm_trie.c @@ -540,8 +540,6 @@ static int trie_delete_elem(struct bpf_map *map, void= *_key) static struct bpf_map *trie_alloc(union bpf_attr *attr) { struct lpm_trie *trie; - u64 cost =3D sizeof(*trie), cost_per_node; - int ret; =20 if (!bpf_capable()) return ERR_PTR(-EPERM); @@ -567,20 +565,9 @@ static struct bpf_map *trie_alloc(union bpf_attr *at= tr) offsetof(struct bpf_lpm_trie_key, data); trie->max_prefixlen =3D trie->data_size * 8; =20 - cost_per_node =3D sizeof(struct lpm_trie_node) + - attr->value_size + trie->data_size; - cost +=3D (u64) attr->max_entries * cost_per_node; - - ret =3D bpf_map_charge_init(&trie->map.memory, cost); - if (ret) - goto out_err; - spin_lock_init(&trie->lock); =20 return &trie->map; -out_err: - kfree(trie); - return ERR_PTR(ret); } =20 static void trie_free(struct bpf_map *map) --=20 2.26.2