From patchwork Mon May 7 17:50:47 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Song Liu X-Patchwork-Id: 909872 Return-Path: X-Original-To: patchwork-incoming-netdev@ozlabs.org Delivered-To: patchwork-incoming-netdev@ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=netdev-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=pass (p=none dis=none) header.from=fb.com Authentication-Results: ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=fb.com header.i=@fb.com header.b="oj7NJs0i"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 40fqt104r5z9s37 for ; Tue, 8 May 2018 03:51:05 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752696AbeEGRvB (ORCPT ); Mon, 7 May 2018 13:51:01 -0400 Received: from mx0a-00082601.pphosted.com ([67.231.145.42]:39782 "EHLO mx0a-00082601.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752495AbeEGRvA (ORCPT ); Mon, 7 May 2018 13:51:00 -0400 Received: from pps.filterd (m0109333.ppops.net [127.0.0.1]) by mx0a-00082601.pphosted.com (8.16.0.22/8.16.0.22) with SMTP id w47HoBrv028121 for ; Mon, 7 May 2018 10:51:00 -0700 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=fb.com; h=from : to : cc : subject : date : message-id : mime-version : content-type; s=facebook; bh=MlkuTwH4jsqBtV9hhuGEQemLjFzqd2EQLabkaseyRNQ=; b=oj7NJs0iVGR8ydIgNSplFjwzs2K3IJfef7N+K0KPH2tIPCHuLaTtMSR9a7SXwBTzqngC PnXCGc+J3+9t6XSXThooL+Vu8ESWsm3JwF9q4FHsiwS/PhwIZPRl3qNhZcpU7avW3kW9 yj5Ww5Jy3v5V6hhz2ZQjRnkYrngrqxqjYSg= Received: from mail.thefacebook.com ([199.201.64.23]) by mx0a-00082601.pphosted.com with ESMTP id 2httcxr92e-1 (version=TLSv1 cipher=ECDHE-RSA-AES256-SHA bits=256 verify=NOT) for ; Mon, 07 May 2018 10:51:00 -0700 Received: from mx-out.facebook.com (192.168.52.123) by PRN-CHUB10.TheFacebook.com (192.168.16.20) with Microsoft SMTP Server id 14.3.361.1; Mon, 7 May 2018 10:50:58 -0700 Received: by devbig006.ftw2.facebook.com (Postfix, from userid 4523) id 4972662E12AB; Mon, 7 May 2018 10:50:58 -0700 (PDT) Smtp-Origin-Hostprefix: devbig From: Song Liu Smtp-Origin-Hostname: devbig006.ftw2.facebook.com To: CC: Song Liu , , , Smtp-Origin-Cluster: ftw2c04 Subject: [PATCH v3 bpf-next 0/2] bpf: enable stackmap with build_id in nmi Date: Mon, 7 May 2018 10:50:47 -0700 Message-ID: <20180507175049.1541963-1-songliubraving@fb.com> X-Mailer: git-send-email 2.9.5 X-FB-Internal: Safe MIME-Version: 1.0 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:, , definitions=2018-05-07_09:, , signatures=0 X-Proofpoint-Spam-Reason: safe X-FB-Internal: Safe Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Changes v2 -> v3: Improve syntax based on suggestion by Tobin C. Harding. Changes v1 -> v2: 1. Rename some variables to (hopefully) reduce confusion; 2. Check irq_work status with IRQ_WORK_BUSY (instead of work->sem); 3. In Kconfig, let BPF_SYSCALL select IRQ_WORK; 4. Add static to DEFINE_PER_CPU(); 5. Remove pr_info() in stack_map_init(). Song Liu (2): bpf: enable stackmap with build_id in nmi context bpf: add selftest for stackmap with build_id in NMI context init/Kconfig | 1 + kernel/bpf/stackmap.c | 59 +++++++++++-- tools/testing/selftests/bpf/test_progs.c | 134 +++++++++++++++++++++++++++++ tools/testing/selftests/bpf/urandom_read.c | 10 ++- 4 files changed, 196 insertions(+), 8 deletions(-) --- 2.9.5