From mboxrd@z Thu Jan 1 00:00:00 1970 From: Song Liu 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> Mime-Version: 1.0 Content-Type: text/plain Cc: Song Liu , , , To: Return-path: 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 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 Sender: netdev-owner@vger.kernel.org List-ID: 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(-)