From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1946042AbdEYWUG (ORCPT ); Thu, 25 May 2017 18:20:06 -0400 Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]:57111 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S939424AbdEYWAM (ORCPT ); Thu, 25 May 2017 18:00:12 -0400 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, fweisbec@gmail.com, oleg@redhat.com, bobby.prani@gmail.com, "Paul E. McKenney" Subject: [PATCH tip/core/rcu 05/88] rcutorture: Add a scenario for Classic SRCU Date: Thu, 25 May 2017 14:58:38 -0700 X-Mailer: git-send-email 2.5.2 In-Reply-To: <20170525215934.GA11578@linux.vnet.ibm.com> References: <20170525215934.GA11578@linux.vnet.ibm.com> X-TM-AS-GCONF: 00 x-cbid: 17052522-0056-0000-0000-00000371398A X-IBM-SpamModules-Scores: X-IBM-SpamModules-Versions: BY=3.00007117; HX=3.00000241; KW=3.00000007; PH=3.00000004; SC=3.00000212; SDB=6.00865574; UDB=6.00429833; IPR=6.00645396; BA=6.00005375; NDR=6.00000001; ZLA=6.00000005; ZF=6.00000009; ZB=6.00000000; ZP=6.00000000; ZH=6.00000000; ZU=6.00000002; MB=3.00015583; XFM=3.00000015; UTC=2017-05-25 22:00:07 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 17052522-0057-0000-0000-000007A76E8D Message-Id: <1495749601-21574-5-git-send-email-paulmck@linux.vnet.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:,, definitions=2017-05-25_17:,, signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 suspectscore=1 malwarescore=0 phishscore=0 adultscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1703280000 definitions=main-1705250401 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org A robust combination of paranoia and cowardice has resulted in retaining Classic SRCU (CONFIG_CLASSIC_SRCU) as a backup for the shiny new Tiny and Tree SRCU implementations. If it is to be a viable backup, it of course needs to be tested. This commit therefore adds an rcutorture scenario named SRCU-C for Classic SRCU. This commit also adds this scenario to the set that are run by default. Once sufficient good experience has accumulated for Tiny and Tree SRCU, this test will be removed, along with the Classic SRCU implementation itself. Signed-off-by: Paul E. McKenney --- tools/testing/selftests/rcutorture/configs/rcu/CFLIST | 1 + tools/testing/selftests/rcutorture/configs/rcu/SRCU-C | 11 +++++++++++ tools/testing/selftests/rcutorture/configs/rcu/SRCU-C.boot | 1 + 3 files changed, 13 insertions(+) create mode 100644 tools/testing/selftests/rcutorture/configs/rcu/SRCU-C create mode 100644 tools/testing/selftests/rcutorture/configs/rcu/SRCU-C.boot diff --git a/tools/testing/selftests/rcutorture/configs/rcu/CFLIST b/tools/testing/selftests/rcutorture/configs/rcu/CFLIST index 6a0b9f69faad..0c1da784b8cb 100644 --- a/tools/testing/selftests/rcutorture/configs/rcu/CFLIST +++ b/tools/testing/selftests/rcutorture/configs/rcu/CFLIST @@ -7,6 +7,7 @@ TREE06 TREE07 TREE08 TREE09 +SRCU-C SRCU-N SRCU-P SRCU-t diff --git a/tools/testing/selftests/rcutorture/configs/rcu/SRCU-C b/tools/testing/selftests/rcutorture/configs/rcu/SRCU-C new file mode 100644 index 000000000000..e4f8b1b75584 --- /dev/null +++ b/tools/testing/selftests/rcutorture/configs/rcu/SRCU-C @@ -0,0 +1,11 @@ +CONFIG_RCU_TRACE=n +CONFIG_SMP=y +CONFIG_NR_CPUS=8 +CONFIG_HOTPLUG_CPU=y +CONFIG_RCU_EXPERT=y +CONFIG_CLASSIC_SRCU=y +CONFIG_PREEMPT_NONE=n +CONFIG_PREEMPT_VOLUNTARY=n +CONFIG_PREEMPT=y +CONFIG_DEBUG_LOCK_ALLOC=y +CONFIG_PROVE_LOCKING=y diff --git a/tools/testing/selftests/rcutorture/configs/rcu/SRCU-C.boot b/tools/testing/selftests/rcutorture/configs/rcu/SRCU-C.boot new file mode 100644 index 000000000000..84a7d51b7481 --- /dev/null +++ b/tools/testing/selftests/rcutorture/configs/rcu/SRCU-C.boot @@ -0,0 +1 @@ +rcutorture.torture_type=srcud -- 2.5.2