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=-3.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,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 3471AC072B5 for ; Tue, 21 May 2019 23:06:41 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 045FD2173E for ; Tue, 21 May 2019 23:06:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1558480001; bh=LMvl6w9YJhnk5K3Mttn5VB4+6+Gf3/aIsbyUI1D3nUY=; h=From:To:CC:Subject:Date:List-ID:From; b=xDJMh2oGe6leLy1kjYHpIeOUSLoRRL/qqstX2KNPNC3VqqUsYmg1vwe+77p5TlqmA HHEN9dakQZ+4MSrGNy218Ci1YFltVjvj0bHFbbr/tOH77EX+9D/EQaThByYEFaAFE2 FrJUsOfGadPUkvfmCmo+vuU5xCrJaOaw3i7wO5RE= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726875AbfEUXGj convert rfc822-to-8bit (ORCPT ); Tue, 21 May 2019 19:06:39 -0400 Received: from mx0a-00082601.pphosted.com ([67.231.145.42]:44616 "EHLO mx0a-00082601.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726218AbfEUXGj (ORCPT ); Tue, 21 May 2019 19:06:39 -0400 Received: from pps.filterd (m0109333.ppops.net [127.0.0.1]) by mx0a-00082601.pphosted.com (8.16.0.27/8.16.0.27) with SMTP id x4LMvCdA002542 for ; Tue, 21 May 2019 16:06:38 -0700 Received: from mail.thefacebook.com (mailout.thefacebook.com [199.201.64.23]) by mx0a-00082601.pphosted.com with ESMTP id 2smkvw1p9j-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-SHA384 bits=256 verify=NOT) for ; Tue, 21 May 2019 16:06:38 -0700 Received: from mx-out.facebook.com (2620:10d:c081:10::13) by mail.thefacebook.com (2620:10d:c081:35::125) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA) id 15.1.1713.5; Tue, 21 May 2019 16:06:37 -0700 Received: by devbig007.ftw2.facebook.com (Postfix, from userid 572438) id 9C093760B85; Tue, 21 May 2019 16:06:35 -0700 (PDT) Smtp-Origin-Hostprefix: devbig From: Alexei Starovoitov Smtp-Origin-Hostname: devbig007.ftw2.facebook.com To: CC: , , , Smtp-Origin-Cluster: ftw2c04 Subject: [PATCH bpf-next 0/3] bpf: optimize explored_states Date: Tue, 21 May 2019 16:06:32 -0700 Message-ID: <20190521230635.2142522-1-ast@kernel.org> X-Mailer: git-send-email 2.20.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8BIT X-FB-Internal: Safe Content-Type: text/plain X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:,, definitions=2019-05-21_07:,, signatures=0 X-Proofpoint-Spam-Details: rule=fb_default_notspam policy=fb_default score=44 priorityscore=1501 malwarescore=0 suspectscore=1 phishscore=0 bulkscore=0 spamscore=44 clxscore=1034 lowpriorityscore=0 mlxscore=44 impostorscore=0 mlxlogscore=10 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1810050000 definitions=main-1905210143 X-FB-Internal: deliver Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Convert explored_states array into hash table and use simple hash to reduce verifier peak memory consumption for programs with bpf2bpf calls. More details in patch 3. Alexei Starovoitov (3): bpf: cleanup explored_states bpf: split explored_states bpf: convert explored_states to hash table include/linux/bpf_verifier.h | 2 + kernel/bpf/verifier.c | 78 ++++++++++++++++++++++-------------- 2 files changed, 51 insertions(+), 29 deletions(-) -- 2.20.0