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Message-ID: <20150512225753.GA5012@linux.vnet.ibm.com>
Date: Tue, 12 May 2015 15:57:53 -0700
From: "Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
To: linux-kernel@...r.kernel.org
Cc: mingo@...nel.org, laijs@...fujitsu.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,
dvhart@...ux.intel.com, fweisbec@...il.com, oleg@...hat.com,
bobby.prani@...il.com
Subject: [PATCH tip/core/rcu 0/13] Torture-test updates for 4.2
Hello!
This series contains torture-test updates:
1. Use correct locking primitive, thus avoiding deadlock, courtesy
of Alexey Kodanev.
2. Exchange TREE03 and TREE04 geometries in order to improve bug-location
rates.
3. Exchange TREE03 and TREE08 NR_CPUS, speed up CPU hotplug to further
improve bug-location rates.
4. Allow negative values of nreaders to in order to oversubscribe
the CPUs, again to improve bug-location rates.
5. Change longdelay_us to longdelay_ms in order to better reflect
reality. (Not that gcc cares, but people reading the code just
might.)
6. Replace open-coded memory barriers with the shiny new
smp_store_release() and smp_load_acquire() primitives.
7. Test SRCU cleanup code path in order to improve test coverage.
8. Avoid explicitly setting CONFIG_TASKS_RCU, given that it is
now set implicitly based on other configuration options.
9. Update configuration fragments from CONFIG_RCU_FANOUT_EXACT to
the new rcutree.rcu_fanout_exact= boot parameter.
10. Make rcutorture scripts force RCU_EXPERT so that they can still
build the needed kernel configurations.
11. Update TREE_RCU-kconfig.txt to describe new kernel-parameter
setup.
12. Make torture scripts display "make oldconfig" errors
13. Allow repetition factors in Kconfig-fragment lists. Because
typing 48 repetitions of "TINY02" is getting old.
Thanx, Paul
------------------------------------------------------------------------
b/kernel/locking/locktorture.c | 14 -
b/kernel/rcu/rcutorture.c | 103 ++++++----
b/tools/testing/selftests/rcutorture/bin/configinit.sh | 2
b/tools/testing/selftests/rcutorture/bin/kvm-recheck.sh | 4
b/tools/testing/selftests/rcutorture/bin/kvm.sh | 25 +-
b/tools/testing/selftests/rcutorture/configs/rcu/SRCU-N | 1
b/tools/testing/selftests/rcutorture/configs/rcu/SRCU-P | 1
b/tools/testing/selftests/rcutorture/configs/rcu/SRCU-P.boot | 2
b/tools/testing/selftests/rcutorture/configs/rcu/TASKS01 | 5
b/tools/testing/selftests/rcutorture/configs/rcu/TASKS02 | 1
b/tools/testing/selftests/rcutorture/configs/rcu/TASKS03 | 2
b/tools/testing/selftests/rcutorture/configs/rcu/TINY02 | 2
b/tools/testing/selftests/rcutorture/configs/rcu/TREE01 | 1
b/tools/testing/selftests/rcutorture/configs/rcu/TREE02 | 2
b/tools/testing/selftests/rcutorture/configs/rcu/TREE02-T | 1
b/tools/testing/selftests/rcutorture/configs/rcu/TREE03 | 8
b/tools/testing/selftests/rcutorture/configs/rcu/TREE03.boot | 1
b/tools/testing/selftests/rcutorture/configs/rcu/TREE04 | 8
b/tools/testing/selftests/rcutorture/configs/rcu/TREE05 | 4
b/tools/testing/selftests/rcutorture/configs/rcu/TREE06 | 4
b/tools/testing/selftests/rcutorture/configs/rcu/TREE06.boot | 1
b/tools/testing/selftests/rcutorture/configs/rcu/TREE07 | 4
b/tools/testing/selftests/rcutorture/configs/rcu/TREE08 | 6
b/tools/testing/selftests/rcutorture/configs/rcu/TREE08-T | 1
b/tools/testing/selftests/rcutorture/configs/rcu/TREE08-T.boot | 1
b/tools/testing/selftests/rcutorture/configs/rcu/TREE08.boot | 1
b/tools/testing/selftests/rcutorture/configs/rcu/TREE09 | 1
b/tools/testing/selftests/rcutorture/doc/TREE_RCU-kconfig.txt | 36 +--
28 files changed, 148 insertions(+), 94 deletions(-)
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