From patchwork Tue Nov 17 03:41:03 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Roman Gushchin X-Patchwork-Id: 11911457 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=-12.9 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, 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 1BC5DC6369E for ; Tue, 17 Nov 2020 03:41:27 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 95DE0246BF for ; Tue, 17 Nov 2020 03:41:26 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=fb.com header.i=@fb.com header.b="cui56o0X" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 95DE0246BF 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 607536B00CF; Mon, 16 Nov 2020 22:41:18 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 58CC66B00D3; Mon, 16 Nov 2020 22:41:18 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 47F496B00D2; Mon, 16 Nov 2020 22:41:18 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0017.hostedemail.com [216.40.44.17]) by kanga.kvack.org (Postfix) with ESMTP id DEBFA6B00CD for ; Mon, 16 Nov 2020 22:41:17 -0500 (EST) Received: from smtpin30.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay02.hostedemail.com (Postfix) with ESMTP id 8F93D3628 for ; Tue, 17 Nov 2020 03:41:17 +0000 (UTC) X-FDA: 77492509794.30.jelly62_0a1831f2732e Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin30.hostedemail.com (Postfix) with ESMTP id 73038180B3C85 for ; Tue, 17 Nov 2020 03:41:17 +0000 (UTC) X-HE-Tag: jelly62_0a1831f2732e X-Filterd-Recvd-Size: 4585 Received: from mx0b-00082601.pphosted.com (mx0b-00082601.pphosted.com [67.231.153.30]) by imf01.hostedemail.com (Postfix) with ESMTP for ; Tue, 17 Nov 2020 03:41:16 +0000 (UTC) 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 0AH3e0FG004489 for ; Mon, 16 Nov 2020 19:41:16 -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=M6nI7BN0unMH8lLVYY0WWTngfpCmQVxP1GeXrD6hnIE=; b=cui56o0XIESKW42m0Vq0lMVSR0/qCmAdcIOBmkWlVlVEljhwrHQ8Imp2wpExW9xHurmD id9bdJVjGX84NdDuHuT4jItMw8cIjc2anOi7t/N2w6E9yBMH3X1RgpR6sKUrjSjthb74 oNCvEes42Az/GiXsLw0soBCxkJnxc9mWzzU= Received: from maileast.thefacebook.com ([163.114.130.16]) by mx0a-00082601.pphosted.com with ESMTP id 34tdmruh5s-6 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NOT) for ; Mon, 16 Nov 2020 19:41:15 -0800 Received: from intmgw001.41.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 19:41:14 -0800 Received: by devvm3388.prn0.facebook.com (Postfix, from userid 111017) id 95846C63A91; Mon, 16 Nov 2020 19:41:10 -0800 (PST) From: Roman Gushchin To: CC: , , , , , , , Subject: [PATCH bpf-next v6 29/34] bpf: eliminate rlimit-based memory accounting for stackmap maps Date: Mon, 16 Nov 2020 19:41:03 -0800 Message-ID: <20201117034108.1186569-30-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 X-FB-Internal: Safe 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=763 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 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 stackmap maps. It has been replaced with the memcg-based memory accounting. Signed-off-by: Roman Gushchin Acked-by: Song Liu --- kernel/bpf/stackmap.c | 16 +++------------- 1 file changed, 3 insertions(+), 13 deletions(-) diff --git a/kernel/bpf/stackmap.c b/kernel/bpf/stackmap.c index 06065fa27124..3325add8e629 100644 --- a/kernel/bpf/stackmap.c +++ b/kernel/bpf/stackmap.c @@ -90,7 +90,6 @@ static struct bpf_map *stack_map_alloc(union bpf_attr *attr) { u32 value_size = attr->value_size; struct bpf_stack_map *smap; - struct bpf_map_memory mem; u64 cost, n_buckets; int err; @@ -119,15 +118,9 @@ static struct bpf_map *stack_map_alloc(union bpf_attr *attr) cost = n_buckets * sizeof(struct stack_map_bucket *) + sizeof(*smap); cost += n_buckets * (value_size + sizeof(struct stack_map_bucket)); - err = bpf_map_charge_init(&mem, cost); - if (err) - return ERR_PTR(err); - smap = bpf_map_area_alloc(cost, bpf_map_attr_numa_node(attr)); - if (!smap) { - bpf_map_charge_finish(&mem); + if (!smap) return ERR_PTR(-ENOMEM); - } bpf_map_init_from_attr(&smap->map, attr); smap->map.value_size = value_size; @@ -135,20 +128,17 @@ static struct bpf_map *stack_map_alloc(union bpf_attr *attr) err = get_callchain_buffers(sysctl_perf_event_max_stack); if (err) - goto free_charge; + goto free_smap; err = prealloc_elems_and_freelist(smap); if (err) goto put_buffers; - bpf_map_charge_move(&smap->map.memory, &mem); - return &smap->map; put_buffers: put_callchain_buffers(); -free_charge: - bpf_map_charge_finish(&mem); +free_smap: bpf_map_area_free(smap); return ERR_PTR(err); }