linux-kernel - [PATCH tip/core/rcu 0/19] New smp_call

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Date:   Mon, 31 Aug 2020 11:07:31 -0700
From:   "Paul E. McKenney" <paulmck@...nel.org>
To:     rcu@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org, kernel-team@...com, mingo@...nel.org,
        jiangshanlai@...il.com, dipankar@...ibm.com,
        akpm@...ux-foundation.org, mathieu.desnoyers@...icios.com,
        josh@...htriplett.org, tglx@...utronix.de, peterz@...radead.org,
        rostedt@...dmis.org, dhowells@...hat.com, edumazet@...gle.com,
        fweisbec@...il.com, oleg@...hat.com, joel@...lfernandes.org
Subject: [PATCH tip/core/rcu 0/19] New smp_call_function() torture test for
 v5.10

Hello!

This series introduces a new torture test for smp_call_function()
and friends:

1.	Add smp_call_function() torture test.

2.	Declare parse-console.sh independence from rcutorture.

3.	Add scftorture to the rcutorture scripting.

4.	Implement weighted primitive selection.

5.	tick-sched: Clarify "NOHZ: local_softirq_pending" warning.

6.	Summarize per-thread statistics.

7.	Add smp_call_function_single() memory-ordering checks.

8.	Add smp_call_function_many() memory-ordering checks.

9.	Add smp_call_function() memory-ordering checks.

10.	Consolidate scftorture_invoke_one() check and kfree().

11.	Consolidate scftorture_invoke_one() scf_check initialization.

12.	Flag errors in torture-compatible manner.

13.	Prevent compiler from reducing race probabilities.

14.	Make symbol 'scf_torture_rand' static.

15.	Check unexpected "switch" statement value.

16.	Block scftorture_invoker() kthreads for offline CPUs.

17.	Adapt memory-ordering test to UP operation.

18.	Add cond_resched() to test loop.

19.	Change rcuperf to rcuscale.

						Thanx, Paul

------------------------------------------------------------------------

 b/Documentation/admin-guide/kernel-parameters.txt                       |  128 +
 b/MAINTAINERS                                                           |    3 
 b/kernel/Makefile                                                       |    2 
 b/kernel/rcu/Kconfig.debug                                              |    2 
 b/kernel/rcu/Makefile                                                   |    2 
 b/kernel/rcu/rcuscale.c                                                 |  330 ++--
 b/kernel/scftorture.c                                                   |  755 ++++++++--
 b/kernel/time/tick-sched.c                                              |    2 
 b/lib/Kconfig.debug                                                     |   10 
 b/tools/testing/selftests/rcutorture/bin/kvm-recheck-rcuscale-ftrace.sh |    6 
 b/tools/testing/selftests/rcutorture/bin/kvm-recheck-rcuscale.sh        |   14 
 b/tools/testing/selftests/rcutorture/bin/kvm-recheck-scf.sh             |   38 
 b/tools/testing/selftests/rcutorture/bin/kvm.sh                         |   10 
 b/tools/testing/selftests/rcutorture/bin/parse-console.sh               |   11 
 b/tools/testing/selftests/rcutorture/configs/rcuscale/CFcommon          |    2 
 b/tools/testing/selftests/rcutorture/configs/rcuscale/ver_functions.sh  |    4 
 b/tools/testing/selftests/rcutorture/configs/scf/CFLIST                 |    2 
 b/tools/testing/selftests/rcutorture/configs/scf/CFcommon               |    2 
 b/tools/testing/selftests/rcutorture/configs/scf/NOPREEMPT              |    9 
 b/tools/testing/selftests/rcutorture/configs/scf/NOPREEMPT.boot         |    1 
 b/tools/testing/selftests/rcutorture/configs/scf/PREEMPT                |    9 
 b/tools/testing/selftests/rcutorture/configs/scf/ver_functions.sh       |   30 
 tools/testing/selftests/rcutorture/configs/rcuperf/CFcommon             |    2 
 23 files changed, 1073 insertions(+), 301 deletions(-)