Received: by 2002:ac0:a594:0:0:0:0:0 with SMTP id m20-v6csp7210735imm; Sun, 20 May 2018 21:45:11 -0700 (PDT) X-Google-Smtp-Source: AB8JxZpYjuEicqCMxp/Uw5T82ZUIlRc/4vqjETsaNPGj2sw+RXDmLIVVrbyG6rim2wzbxqspuY5Z X-Received: by 2002:a62:c2c7:: with SMTP id w68-v6mr18399560pfk.174.1526877911669; Sun, 20 May 2018 21:45:11 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1526877911; cv=none; d=google.com; s=arc-20160816; b=uSI0FcMRkHpkrSYlSGfb38tYPmakRnjU4+21FbNfk8ZPFhlX4hAUT0iPbObicuBlpK nMsOpNWTdRTEHMBt/FiNqthvKYtQcxhI7bghcuD245f9Ai4dUNixLcaBlwNIJFiULUP/ 704YGU/f0Yne+yLBFXT42BETWhPPbTKddE8xEfwJmHfo/jttjjuW9kx1IFEiSzd4fN++ jb7EqtgaFWQIukAIaWQFHsjY1uUxdTtNiHk+wNrwFPQM2K5U4uv3SBz6WRRzYQPwZdoB vtbTG7qBuGsrmc7/3Haaezzw7C0L00lYNqIS8D8AyVFwxlrgFSPWHFSMXXsIxQ0BQpWj UIkA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:message-id:date:subject:cc:to:from :dkim-signature:arc-authentication-results; bh=Ffb8mzswOKPkSavCroZAgePfGA4OI3pv3xqU5BfEPVU=; b=SVLsrbHbZ+1u0p62JHLcGw9fKkh8UhhAahpr/fmMDNkUWrtsT+vTTZdmNDI26CnKtG P30uKCnLO7IWFMi6PsTP2gsOHgvOkARN36K2u2T/8puUTiCMK9m9L043/3ACMeC3VkEx iG4pxfYoV4LosVKiZnCIVFzp4Tka8t6X2eBUy98VlLTie/rCBkWet0oTSzl8CZgEsTd+ qAhja3nU6V3JpZgV/JEy6vE+L8QXnx3EIHCcV1DZ7TmRqZ9IJo2HioyX+PhgxUKi91Oo eP3KjVsQkKBOaTrM+IgPdxT0oxgVOELpm5Rcqx+f2ujL5sLOuRXwWEqPWvY7Mga7ZBFX kf8A== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@google.com header.s=20161025 header.b=arQ9eLz0; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=REJECT sp=REJECT dis=NONE) header.from=google.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id f6-v6si10393796pgq.207.2018.05.20.21.44.57; Sun, 20 May 2018 21:45:11 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@google.com header.s=20161025 header.b=arQ9eLz0; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=REJECT sp=REJECT dis=NONE) header.from=google.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752853AbeEUEmg (ORCPT + 99 others); Mon, 21 May 2018 00:42:36 -0400 Received: from mail-pg0-f67.google.com ([74.125.83.67]:35795 "EHLO mail-pg0-f67.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752257AbeEUEmb (ORCPT ); Mon, 21 May 2018 00:42:31 -0400 Received: by mail-pg0-f67.google.com with SMTP id 11-v6so4174229pge.2 for ; Sun, 20 May 2018 21:42:30 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=from:to:cc:subject:date:message-id; bh=Ffb8mzswOKPkSavCroZAgePfGA4OI3pv3xqU5BfEPVU=; b=arQ9eLz0WUCDozriyGiKsEN9m/9wPI7q7O5kS7vhBnQbUHmYS+PCJ8qgTeanfEnfde lOOZir0xfl9/j7NCixsNp3iBFSvJkVe8uRrNLrcoIZNtt2cNVnMWiMVPglHD1RfhsRT5 dTh6Ym66HRVUVgDC+8gTkEN8jkQDn/P9eyfWQoKhPRMQfWlJh4kFRgdtOnHeNbtfKjFj pXwD3+wYxUMB2+2RSGFOXCS42RYJCfJSjLynAtLg670Bsj+YlbmLcdQhNN4EhJB4M/Px Fds+3LhGvArZ+6DgFnURgfRl1bisCXG4EAyOCuVp6uxFj2XdIovZOcr21H9VLB0JHJlU uwiQ== 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; bh=Ffb8mzswOKPkSavCroZAgePfGA4OI3pv3xqU5BfEPVU=; b=NPhOKQzxN96JT6DZhhy+21Vpj3AmdhqkTVcFcYr5COyKwkRYPcbm6XX1CXOFvreVi5 Z4OLDTF0dCITHFFBSGwfatH32uL9pxlWIryyrMd5/CDRwAOR8ejKN1kt1xcyNpfLoZXl GHs0h8l6L8VePGVNZPwii1dZta563wO6lAAh/lE1WubrttSB21mX8N+nMX81PQmWWt0A 2tjKCjn4lVV5OokCYf7/MiX85x5vhQRFtwP/J4RREJeFFNUQFYSwS4Bhb1T1vVxLEP6p US8RROjo480CNVYjxu+eo3n66y/Rh12aDVqmDC1PhNQNFP8rVTh2WgS3LCD5Waj+IU1H iv6g== X-Gm-Message-State: ALKqPwf68gPFv/DFuj9RZGEXNVcbW/I4Pk81p8uy/nsGnPZCpeXL6Gx6 WwuEE4YcqZWG8uBaYnj8oxYw5escqtk= X-Received: by 2002:a62:dfcd:: with SMTP id d74-v6mr18636476pfl.114.1526877750003; Sun, 20 May 2018 21:42:30 -0700 (PDT) Received: from joelaf.mtv.corp.google.com ([2620:0:1000:1600:3122:ea9c:d178:eb]) by smtp.gmail.com with ESMTPSA id j1-v6sm26577914pfc.159.2018.05.20.21.42.29 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sun, 20 May 2018 21:42:29 -0700 (PDT) From: Joel Fernandes X-Google-Original-From: Joel Fernandes To: linux-kernel@vger.kernel.org Cc: Joel Fernandes , "Paul E. McKenney" , Josh Triplett , Steven Rostedt , Mathieu Desnoyers , Lai Jiangshan , byungchul.park@lge.com, kernel-team@android.com Subject: [PATCH v3 0/4] fixes, cleanups for rcu/dev Date: Sun, 20 May 2018 21:42:16 -0700 Message-Id: <20180521044220.123933-1-joel@joelfernandes.org> X-Mailer: git-send-email 2.17.0.441.gb46fe60e1d-goog Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Paul, Here are some patches reworked with a few comments on few of the patches from previous series: https://lkml.org/lkml/2018/5/13/296 4/4 is a new addition which fixes a potential issue. Please disregard the v2, and consider this v3 instead, since that v2 was a pure patch generation mess. thanks! Joel Fernandes (4): rcu: Add comment documenting how rcu_seq_snap works rcu: Cleanup the variables used to request a new grace period rcu: Use better variable names in funnel locking loop rcu: Unlock non-start node only after accessing its gp_seq_needed include/trace/events/rcu.h | 15 +++---- kernel/rcu/rcu.h | 33 +++++++++++++++- kernel/rcu/tree.c | 80 +++++++++++++++++++++----------------- 3 files changed, 85 insertions(+), 43 deletions(-) -- 2.17.0.441.gb46fe60e1d-goog