From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752088AbaD1X4K (ORCPT ); Mon, 28 Apr 2014 19:56:10 -0400 Received: from e33.co.us.ibm.com ([32.97.110.151]:56418 "EHLO e33.co.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751305AbaD1X4I (ORCPT ); Mon, 28 Apr 2014 19:56:08 -0400 Date: Mon, 28 Apr 2014 16:56:00 -0700 From: "Paul E. McKenney" To: linux-kernel@vger.kernel.org Cc: mingo@kernel.org, laijs@cn.fujitsu.com, dipankar@in.ibm.com, akpm@linux-foundation.org, mathieu.desnoyers@efficios.com, josh@joshtriplett.org, niv@us.ibm.com, tglx@linutronix.de, peterz@infradead.org, rostedt@goodmis.org, dhowells@redhat.com, edumazet@google.com, darren@dvhart.com, fweisbec@gmail.com, oleg@redhat.com, sbw@mit.edu Subject: [PATCH tip/core/rcu 0/3] Miscellaneous fixes for 3.16 Message-ID: <20140428235600.GA12200@linux.vnet.ibm.com> Reply-To: paulmck@linux.vnet.ibm.com MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.21 (2010-09-15) X-TM-AS-MML: disable X-Content-Scanned: Fidelis XPS MAILER x-cbid: 14042823-0928-0000-0000-000001807F88 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello! This series provides miscellaneous fixes: 1. Apply ACCESS_ONCE() to unprotected ->gp_flags accesses. 2. Fix typo in comment, courtesy of Liu Ping Fan. 3. Make RCU CPU stall warnings print grace-period numbers in signed format to improve readability of stall-warning output. 4. Make cpu_needs_another_gp() take future grace-period needs into account. 5. Remove unused ->preemptible field from the rcu_data structure, courtesty of Iulia Manda. 6. Apply ACCESS_ONCE() to unprotected ->jiffies_stall accesses, courtesty of Iulia Manda. 7. Make callers responsible for grace-period kthread wakeup in order to avoid potential silent grace-period stalls. 8. Remove "extern" from RCU function declarations, courtesy of Iulia Manda. 9. Apply ACCESS_ONCE() to additional ->jiffies_stall accesses, courtesy of Himangi Saraogi. 10. Add event tracing to dyntick_save_progress_counter(), courtesy of Andreea-Cristina Bernat. 11. Make rcu_init_one() use nr_cpu_ids instead of NR_CPUS for data-structure setup limit check, courtesy of Himangi Saraogi. 12. Remove redundant kfree_call_rcu() definition by using the rcu_state pointer, courtesy of Andreea-Cristina Bernat. 13. Merge rcu_sched_force_quiescent_state() definition with rcu_force_quiescent_state() by using the rcu_state pointer, courtesy of Andreea-Cristina Bernat. 14. Document RCU_INIT_POINTER()'s lack of ordering guarantees. 15. Automatically bind RCU's grace-period kthreads to timekeeping CPU for NO_HZ_FULL builds. 16. Make large and small sysidle systems use equivalent state machine. 17. Remove duplicate resched_cpu() declaration, courtesy of Pranith Kumar. 18. Replace deprecated __this_cpu_ptr() uses with raw_cpu_ptr(), courtesy of Christoph Lameter. 19. Make softirq processing provide a quiescent state only once per full pass over all softirqs rather than once per action, courtesy of Eric Dumazet. Thanx, Paul ------------------------------------------------------------------------ b/include/linux/rcupdate.h | 5 b/kernel/rcu/tiny_plugin.h | 8 - b/kernel/rcu/tree.c | 261 ++++++++++++++++++++++++++++----------------- b/kernel/rcu/tree.h | 3 b/kernel/rcu/tree_plugin.h | 120 +++++--------------- b/kernel/softirq.c | 4 6 files changed, 206 insertions(+), 195 deletions(-)