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=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS, 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 96FD0C43381 for ; Wed, 20 Feb 2019 04:09:02 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 62CF72147A for ; Wed, 20 Feb 2019 04:09:02 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=joelfernandes.org header.i=@joelfernandes.org header.b="pxGYaTK+" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730150AbfBTEJB (ORCPT ); Tue, 19 Feb 2019 23:09:01 -0500 Received: from mail-qk1-f195.google.com ([209.85.222.195]:37332 "EHLO mail-qk1-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728691AbfBTEJA (ORCPT ); Tue, 19 Feb 2019 23:09:00 -0500 Received: by mail-qk1-f195.google.com with SMTP id m9so1140613qkl.4 for ; Tue, 19 Feb 2019 20:09:00 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=joelfernandes.org; s=google; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=HguPMmzXQ5VlR/oudafavQco3plilFgPNJadffOuwes=; b=pxGYaTK+n45dzjnRfhmqObmqm+T9nwQUNy8X+j9nrEdv6IEdvWnN/udgsHrtFIS4dW XZMYkn7ddSYsFIED5wl5lHuZxO704VINBhjwe3UTLuNX/gf7biyXSD4fDp/dxL736BeH V2SBj+BDtT/C3OiE8Bh13pi5kjC7qADrvHsa8= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=HguPMmzXQ5VlR/oudafavQco3plilFgPNJadffOuwes=; b=EQov/OXgj9ElgVCCqGbWkpAm2y/6bT/qWJ4jHBUoqaLzSamFCowlIwNUTvmgR7M0ps tAC9almNZ+rsSI76UzZodRBfFURvJff0cinJDwsDSH8vA30jM2jdZVjjoVu2TEyevBI5 Mzwf65UUwHJVTolfl4EQVI4gtHoaBGBdRDxZt8Eii9vNYGIVQJ7hPTT6c32Ri+NdGamB 8YMCJSR832e2FPz82K9jCTYSO3BlU8OSp4X2sTX8DcbgRNeRjVHlDmJ3PzvvFXU0oQPF Zwyxo/bgX4KQR4riYhWixe3GbRf8q+fTO8vTX/NmOUl1/kodLKLh9puMYnr4NYuMHwlA V0gw== X-Gm-Message-State: AHQUAuZUmM18nxu4kQBpjnQ7y7dJvrG7/OEA5PN5oF7Plc24dA2/ZtLi 82nJEyFX75J3t+q9SkE/G1KGFROHrPc= X-Google-Smtp-Source: AHgI3IYG7MB2qKkvJQm4+Qfujh51SqDR8MfTg1BZmf54LmG9ibWntIfhP3xy1Y2xWtphZrYkmsYsRQ== X-Received: by 2002:ac8:365a:: with SMTP id n26mr15031190qtb.18.1550635739422; Tue, 19 Feb 2019 20:08:59 -0800 (PST) Received: from joelaf.cam.corp.google.com ([2620:0:1004:1100:cca9:fccc:8667:9bdc]) by smtp.gmail.com with ESMTPSA id s19sm2024593qth.80.2019.02.19.20.08.56 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 19 Feb 2019 20:08:57 -0800 (PST) From: "Joel Fernandes (Google)" To: linux-kernel@vger.kernel.org, rcu@vger.kernel.org Cc: "Joel Fernandes (Google)" , paulmck@linux.ibm.com Subject: [RFC 0/5] RCU fixes for rcu_assign_pointer usage Date: Tue, 19 Feb 2019 23:08:22 -0500 Message-Id: <20190220040827.136184-1-joel@joelfernandes.org> X-Mailer: git-send-email 2.21.0.rc0.258.g878e2cd30e-goog MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org These patches fix various RCU API usage issues found due to sparse errors as a result of the recent check to add rcu_check_sparse() to rcu_assign_pointer(). This is very early RFC stage, and is only build tested. I am also only sending to the RCU group for initial review before sending to LKML. Thanks for any feedback! There are still more usages that cause errors such as rbtree which I am looking into. Joel Fernandes (5): net: rtnetlink: Fix incorrect RCU API usage ixgbe: Fix incorrect RCU API usage sched/cpufreq: Fix incorrect RCU API usage sched/toplogy: Use smp_store_release() instead of rcu_assign_pointer rcuwait: Replace rcu_assign_pointer with smp_store_release drivers/net/ethernet/intel/ixgbe/ixgbe.h | 4 ++-- drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 16 +++++++++++----- include/linux/rcuwait.h | 2 +- kernel/sched/cpufreq.c | 8 ++++++-- kernel/sched/sched.h | 2 +- kernel/sched/topology.c | 16 ++++++++-------- net/core/rtnetlink.c | 4 ++-- 7 files changed, 31 insertions(+), 21 deletions(-) -- 2.21.0.rc0.258.g878e2cd30e-goog