| Message ID | 20201201215900.3569844-25-guro@fb.com |
|---|---|
| State | New |
| Headers | show
Return-Path: <netdev-owner@kernel.org> 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=-20.2 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=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 EECC4C8301D for <netdev@archiver.kernel.org>; Tue, 1 Dec 2020 22:02:34 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id AE9F32086A for <netdev@archiver.kernel.org>; Tue, 1 Dec 2020 22:02:34 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=fb.com header.i=@fb.com header.b="fmbTUdCt" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2392156AbgLAWCP (ORCPT <rfc822;netdev@archiver.kernel.org>); Tue, 1 Dec 2020 17:02:15 -0500 Received: from mx0a-00082601.pphosted.com ([67.231.145.42]:59706 "EHLO mx0a-00082601.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2389544AbgLAV7y (ORCPT <rfc822;netdev@vger.kernel.org>); Tue, 1 Dec 2020 16:59:54 -0500 Received: from pps.filterd (m0044012.ppops.net [127.0.0.1]) by mx0a-00082601.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 0B1LolBl025366 for <netdev@vger.kernel.org>; Tue, 1 Dec 2020 13:59:14 -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=/96f2JealKLTGGO+sRiEZCxtFZDCpNl24O7D1volLV0=; b=fmbTUdCt4Dt7Y6SEHvB/8QwQ0qj54zsNRBBnxbR0hSHgg8xNGAgqfMhLO4rHLcipVMaL CAgWQQ77KIodUuQ38yWuOJOIA7t4jEzPKnxqTngbil4UijC08++w+Nkkl1iGibSXiqgB VMpb0RZUEhFGfOH946wd5ssF8a277Hdz4Ig= Received: from mail.thefacebook.com ([163.114.132.120]) by mx0a-00082601.pphosted.com with ESMTP id 3547g8q51m-2 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NOT) for <netdev@vger.kernel.org>; Tue, 01 Dec 2020 13:59:14 -0800 Received: from intmgw002.41.prn1.facebook.com (2620:10d:c085:208::f) by mail.thefacebook.com (2620:10d:c085:21d::4) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1979.3; Tue, 1 Dec 2020 13:59:10 -0800 Received: by devvm3388.prn0.facebook.com (Postfix, from userid 111017) id AF9F219702CE; Tue, 1 Dec 2020 13:59:06 -0800 (PST) From: Roman Gushchin <guro@fb.com> To: <bpf@vger.kernel.org> CC: <ast@kernel.org>, <daniel@iogearbox.net>, <netdev@vger.kernel.org>, <andrii@kernel.org>, <akpm@linux-foundation.org>, <linux-mm@kvack.org>, <linux-kernel@vger.kernel.org>, <kernel-team@fb.com> Subject: [PATCH bpf-next v9 24/34] bpf: eliminate rlimit-based memory accounting for lpm_trie maps Date: Tue, 1 Dec 2020 13:58:50 -0800 Message-ID: <20201201215900.3569844-25-guro@fb.com> X-Mailer: git-send-email 2.24.1 In-Reply-To: <20201201215900.3569844-1-guro@fb.com> References: <20201201215900.3569844-1-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=2020-12-01_11:2020-11-30,2020-12-01 signatures=0 X-Proofpoint-Spam-Details: rule=fb_default_notspam policy=fb_default score=0 bulkscore=0 clxscore=1015 spamscore=0 suspectscore=38 phishscore=0 mlxscore=0 impostorscore=0 lowpriorityscore=0 malwarescore=0 mlxlogscore=701 priorityscore=1501 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2009150000 definitions=main-2012010131 X-FB-Internal: deliver Precedence: bulk List-ID: <netdev.vger.kernel.org> X-Mailing-List: netdev@vger.kernel.org |
| Series |
bpf: switch to memcg-based memory accounting
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expand
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diff --git a/kernel/bpf/lpm_trie.c b/kernel/bpf/lpm_trie.c index 1a6981203d7f..cec792a17e5f 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 = sizeof(*trie), cost_per_node; - int ret; if (!bpf_capable()) return ERR_PTR(-EPERM); @@ -567,20 +565,9 @@ static struct bpf_map *trie_alloc(union bpf_attr *attr) offsetof(struct bpf_lpm_trie_key, data); trie->max_prefixlen = trie->data_size * 8; - cost_per_node = sizeof(struct lpm_trie_node) + - attr->value_size + trie->data_size; - cost += (u64) attr->max_entries * cost_per_node; - - ret = bpf_map_charge_init(&trie->map.memory, cost); - if (ret) - goto out_err; - spin_lock_init(&trie->lock); return &trie->map; -out_err: - kfree(trie); - return ERR_PTR(ret); } static void trie_free(struct bpf_map *map)