Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753461AbbFCGSt (ORCPT ); Wed, 3 Jun 2015 02:18:49 -0400 Received: from mx1.redhat.com ([209.132.183.28]:57074 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752744AbbFCGSm (ORCPT ); Wed, 3 Jun 2015 02:18:42 -0400 From: Alexander Gordeev To: linux-kernel@vger.kernel.org Cc: Alexander Gordeev , "Paul E. McKenney" , Steven Rostedt Subject: [PATCH v3 0/9] rcu: Cleanup RCU tree initialization Date: Wed, 3 Jun 2015 08:18:22 +0200 Message-Id: Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1548 Lines: 45 Hello Paul, This is 3rd attempt to make RCU tree initialization bit more clear and optimize memory footprint of data associated with the tree. Changes since v2: - patch 1 fixed to avoid a panic in case rcu_fanout_leaf is out of bounds; Changes since v1: - patch 3 fixed to accomodate nr_cpus=1, otherwise rcu_num_lvls would yield zero, which is wrong; The series is against "linux-rcu" tree "rcu/dev" branch Thanks! Cc: "Paul E. McKenney" Cc: Steven Rostedt Alexander Gordeev (9): rcu: Panic if RCU tree can not accommodate all CPUs rcu: Remove superfluous local variable in rcu_init_geometry() rcu: Cleanup rcu_init_geometry() code and arithmetics rcu: Simplify rcu_init_geometry() capacity arithmetics rcu: Limit rcu_state::levelcnt[] to RCU_NUM_LVLS items rcu: Limit rcu_capacity[] size to RCU_NUM_LVLS items rcu: Remove unnecessary fields from rcu_state structure rcu: Limit count of static data to the number of RCU levels rcu: Simplify arithmetic to calculate number of RCU nodes kernel/rcu/tree.c | 109 +++++++++++++++++++++-------------------------- kernel/rcu/tree.h | 33 +++++++------- kernel/rcu/tree_plugin.h | 4 +- 3 files changed, 67 insertions(+), 79 deletions(-) -- 1.8.3.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/