From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752616AbbJFQpV (ORCPT ); Tue, 6 Oct 2015 12:45:21 -0400 Received: from e36.co.us.ibm.com ([32.97.110.154]:45948 "EHLO e36.co.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752445AbbJFQpT (ORCPT ); Tue, 6 Oct 2015 12:45:19 -0400 X-IBM-Helo: d03dlp02.boulder.ibm.com X-IBM-MailFrom: paulmck@linux.vnet.ibm.com X-IBM-RcptTo: linux-kernel@vger.kernel.org Date: Tue, 6 Oct 2015 09:45:14 -0700 From: "Paul E. McKenney" To: linux-kernel@vger.kernel.org Cc: mingo@kernel.org, jiangshanlai@gmail.com, dipankar@in.ibm.com, akpm@linux-foundation.org, mathieu.desnoyers@efficios.com, josh@joshtriplett.org, tglx@linutronix.de, peterz@infradead.org, rostedt@goodmis.org, dhowells@redhat.com, edumazet@google.com, dvhart@linux.intel.com, fweisbec@gmail.com, oleg@redhat.com, bobby.prani@gmail.com Subject: [PATCH tip/core/rcu 0/13] percpu-rwsem patches for 4.4 Message-ID: <20151006164514.GA15516@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: 15100616-0021-0000-0000-0000136EEF30 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello! This series contains performance improvements and locktorture testing for percpu-rwsem: 1. Add rtmutex torturing to locktorture, courtesy of Davidlohr Bueso. 2. Add exports to allow locktorture to be built as a module. 3. Add torture tests for percpu-rwsem. 4. Consolidate cond_resched_rcu_qs() into stutter_wait(). 5. Create rcu_sync infrastructure, courtesy of Oleg Nesterov. 6. Simplify rcu_sync using new rcu_sync_ops structure, courtesy of Oleg Nesterov. 7. Add CONFIG_PROVE_RCU checks for rcu_sync, courtesy of Oleg Nesterov. 8. Introduce rcu_sync_dtor(), courtesy of Oleg Nesterov. 9. Make percpu_free_rwsem() after kzalloc() safe, courtesy of Oleg Nesterov. 10. Make percpu-rwsem make use of rcu_sync, courtesy of Oleg Nesterov. 11. Fix the comments outdated by rcu_sync, courtesy of Oleg Nesterov. 12. Clean up the lockdep annotations in percpu_down_read(), courtesy Peter Zijlstra and of Oleg Nesterov. 13. Cleanup the CONFIG_PROVE_RCU checks, courtesy of Oleg Nesterov. Thanx, Paul ------------------------------------------------------------------------ b/Documentation/locking/locktorture.txt | 3 b/include/linux/percpu-rwsem.h | 3 b/include/linux/rcu_sync.h | 168 ++++-- b/kernel/locking/locktorture.c | 158 +++++ b/kernel/locking/percpu-rwsem.c | 90 +-- b/kernel/rcu/Makefile | 2 b/kernel/rcu/rcutorture.c | 2 b/kernel/rcu/sync.c | 269 +++++++++- b/kernel/torture.c | 1 b/tools/testing/selftests/rcutorture/configs/lock/CFLIST | 4 b/tools/testing/selftests/rcutorture/configs/lock/LOCK05 | 6 b/tools/testing/selftests/rcutorture/configs/lock/LOCK05.boot | 1 b/tools/testing/selftests/rcutorture/configs/lock/LOCK06 | 6 b/tools/testing/selftests/rcutorture/configs/lock/LOCK06.boot | 1 14 files changed, 588 insertions(+), 126 deletions(-)