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Message-ID: <20141117191635.GA17648@linux.vnet.ibm.com>
Date: Mon, 17 Nov 2014 11:16:35 -0800
From: "Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
To: mingo@...nel.org
Cc: linux-kernel@...r.kernel.org, cl@...ux.com, bobby.prani@...il.com,
oleg@...hat.com, stefan.hengelein@....d, clark.williams@...il.com
Subject: [GIT PULL rcu/next] RCU commits for 3.19
Hello, Ingo,
The changes in this series include:
1. Streamline RCU's use of per-CPU variables, shifting from "cpu"
arguments to functions to "this_"-style per-CPU variable accessors.
These were posted to LKML at https://lkml.org/lkml/2014/10/28/1130.
2. Documentation updates. These were posted to LKML at
https://lkml.org/lkml/2014/10/28/1145.
3. Miscellaneous fixes. These were posted to LKML at
https://lkml.org/lkml/2014/10/28/1161.
4. Signal-handling RCU updates. These were posted to LKML at
https://lkml.org/lkml/2014/10/28/1172.
5. Real-time updates. These were posted to LKML at
ttps://lkml.org/lkml/2014/10/28/1181.
6. Torture-test updates. These were posted to LKML at
https://lkml.org/lkml/2014/10/28/1204.
Note that a few commits posted to LKML have been deferred, in particular,
there is some possibility that the DEC Alpha guys will make the compiler
changes needed to allow pre-EV56 CPUs to safely access chars and shorts.
All of these have been exposed to -next testing.
These changes are available in the git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git rcu/next
for you to fetch changes up to 9ea6c5885681e3d9ce9844ba9dc57371a5cfc6d2:
Merge branches 'torture.2014.11.03a', 'cpu.2014.11.03a', 'doc.2014.11.13a', 'fixes.2014.11.13a', 'signal.2014.10.29a' and 'rt.2014.10.29a' into HEAD (2014-11-13 10:39:04 -0800)
----------------------------------------------------------------
Christoph Lameter (1):
rcu: Remove rcu_dynticks * parameters when they are always this_cpu_ptr(&rcu_dynticks)
Clark Williams (1):
rcu: Unify boost and kthread priorities
Oleg Nesterov (2):
signal: Document the RCU protection of ->sighand
rcu: More info about potential deadlocks with rcu_read_unlock()
Paul E. McKenney (22):
rcu: Remove CONFIG_RCU_CPU_STALL_VERBOSE
rcu: Move RCU_BOOST variable declarations, eliminating #ifdef
rcu: Avoid IPIing idle CPUs from synchronize_sched_expedited()
signal: Exit RCU read-side critical section on each pass through loop
rcu: Kick rcuo kthreads after their CPU goes offline
rcu: Fix for rcuo online-time-creation reorganization bug
rcu: Use DEFINE_PER_CPU_SHARED_ALIGNED for rcu_data
rcu: Remove "cpu" argument to rcu_check_callbacks()
rcu: Remove "cpu" argument to rcu_pending()
rcu: Remove "cpu" argument to rcu_preempt_check_callbacks()
rcu: Remove "cpu" argument to rcu_note_context_switch()
rcu: Remove "cpu" argument to rcu_needs_cpu()
rcu: Remove "cpu" argument to rcu_prepare_for_idle()
rcu: Remove "cpu" argument to rcu_cleanup_after_idle()
cpu: Avoid puts_pending overflow
torture: Run Linux-kernel binary out of results directory
rcutorture: Fix rcu_torture_cbflood() memory leak
documentation: Additional restriction for control dependencies
documentation: Add atomic_long_t to atomic_ops.txt
rcu: Optimize cond_resched_rcu_qs()
rcu: Fix FIXME in rcu_tasks_kthread()
Merge branches 'torture.2014.11.03a', 'cpu.2014.11.03a', 'doc.2014.11.13a', 'fixes.2014.11.13a', 'signal.2014.10.29a' and 'rt.2014.10.29a' into HEAD
Pranith Kumar (8):
rcu: Remove redundant TREE_PREEMPT_RCU config option
rcutorture: Add early boot self tests
rcutorture: Enable RCU self test in configs
rcutorture: Remove stale test configurations
rcutorture: Remove obsolete kversion param in kvm.sh
documentation: Document RCU self test boot params
documentation: memory-barriers.txt: Correct example for reorderings
rcu: Add sparse check for RCU_INIT_POINTER()
Stefan Hengelein (1):
init/Kconfig: move RCU_NOCB_CPU dependencies to choice
Documentation/RCU/rcu.txt | 4 +-
Documentation/RCU/stallwarn.txt | 14 +--
Documentation/RCU/trace.txt | 4 +-
Documentation/RCU/whatisRCU.txt | 2 +-
Documentation/atomic_ops.txt | 12 ++-
Documentation/kernel-parameters.txt | 16 +++
Documentation/memory-barriers.txt | 40 ++++++--
include/linux/init_task.h | 2 +-
include/linux/rcupdate.h | 19 ++--
include/linux/rcutiny.h | 2 +-
include/linux/rcutree.h | 6 +-
include/linux/sched.h | 4 +-
include/trace/events/rcu.h | 4 +-
init/Kconfig | 49 ++++-----
kernel/cpu.c | 19 ++--
kernel/fork.c | 5 +-
kernel/rcu/Makefile | 2 +-
kernel/rcu/rcu.h | 2 +
kernel/rcu/rcutorture.c | 1 +
kernel/rcu/tiny.c | 6 +-
kernel/rcu/tree.c | 97 ++++++++++--------
kernel/rcu/tree.h | 22 ++--
kernel/rcu/tree_plugin.h | 111 +++++++++++----------
kernel/rcu/update.c | 89 ++++++++++++++++-
kernel/sched/core.c | 2 +-
kernel/signal.c | 42 ++++----
kernel/softirq.c | 2 +-
kernel/time/tick-sched.c | 2 +-
kernel/time/timer.c | 3 +-
lib/Kconfig.debug | 14 +--
.../selftests/rcutorture/bin/kvm-test-1-run.sh | 6 +-
tools/testing/selftests/rcutorture/bin/kvm.sh | 19 +---
.../selftests/rcutorture/configs/rcu/TINY02 | 2 +
.../selftests/rcutorture/configs/rcu/TINY02.boot | 2 +
.../selftests/rcutorture/configs/rcu/TREE01 | 3 +-
.../selftests/rcutorture/configs/rcu/TREE02 | 3 +-
.../selftests/rcutorture/configs/rcu/TREE02-T | 3 +-
.../selftests/rcutorture/configs/rcu/TREE03 | 5 +-
.../selftests/rcutorture/configs/rcu/TREE04 | 1 -
.../selftests/rcutorture/configs/rcu/TREE05 | 1 -
.../selftests/rcutorture/configs/rcu/TREE05.boot | 1 +
.../selftests/rcutorture/configs/rcu/TREE06 | 1 -
.../selftests/rcutorture/configs/rcu/TREE06.boot | 3 +
.../selftests/rcutorture/configs/rcu/TREE07 | 1 -
.../selftests/rcutorture/configs/rcu/TREE08 | 5 +-
.../selftests/rcutorture/configs/rcu/TREE08-T | 3 +-
.../selftests/rcutorture/configs/rcu/TREE08.boot | 2 +
.../selftests/rcutorture/configs/rcu/TREE09 | 3 +-
.../selftests/rcutorture/configs/rcu/v0.0/CFLIST | 14 ---
.../configs/rcu/v0.0/N1-S-T-NH-SD-SMP-HP | 18 ----
.../configs/rcu/v0.0/N2-2-t-nh-sd-SMP-hp | 20 ----
.../configs/rcu/v0.0/N3-3-T-nh-SD-SMP-hp | 22 ----
.../configs/rcu/v0.0/N4-A-t-NH-sd-SMP-HP | 18 ----
.../configs/rcu/v0.0/N5-U-T-NH-sd-SMP-hp | 22 ----
.../selftests/rcutorture/configs/rcu/v0.0/NT1-nh | 23 -----
.../selftests/rcutorture/configs/rcu/v0.0/NT3-NH | 20 ----
.../configs/rcu/v0.0/P1-S-T-NH-SD-SMP-HP | 19 ----
.../configs/rcu/v0.0/P2-2-t-nh-sd-SMP-hp | 20 ----
.../configs/rcu/v0.0/P3-3-T-nh-SD-SMP-hp | 20 ----
.../configs/rcu/v0.0/P4-A-t-NH-sd-SMP-HP | 22 ----
.../configs/rcu/v0.0/P5-U-T-NH-sd-SMP-hp | 27 -----
.../selftests/rcutorture/configs/rcu/v0.0/PT1-nh | 23 -----
.../selftests/rcutorture/configs/rcu/v0.0/PT2-NH | 22 ----
.../rcutorture/configs/rcu/v0.0/ver_functions.sh | 33 ------
.../selftests/rcutorture/configs/rcu/v3.12/CFLIST | 17 ----
.../configs/rcu/v3.12/N1-S-T-NH-SD-SMP-HP | 19 ----
.../configs/rcu/v3.12/N2-2-t-nh-sd-SMP-hp | 20 ----
.../configs/rcu/v3.12/N3-3-T-nh-SD-SMP-hp | 22 ----
.../configs/rcu/v3.12/N4-A-t-NH-sd-SMP-HP | 18 ----
.../configs/rcu/v3.12/N5-U-T-NH-sd-SMP-hp | 22 ----
.../configs/rcu/v3.12/N6---t-nh-SD-smp-hp | 19 ----
.../configs/rcu/v3.12/N7-4-T-NH-SD-SMP-HP | 26 -----
.../configs/rcu/v3.12/N8-2-T-NH-SD-SMP-HP | 22 ----
.../selftests/rcutorture/configs/rcu/v3.12/NT1-nh | 23 -----
.../selftests/rcutorture/configs/rcu/v3.12/NT3-NH | 20 ----
.../configs/rcu/v3.12/P1-S-T-NH-SD-SMP-HP | 20 ----
.../configs/rcu/v3.12/P2-2-t-nh-sd-SMP-hp | 20 ----
.../configs/rcu/v3.12/P3-3-T-nh-SD-SMP-hp | 20 ----
.../configs/rcu/v3.12/P4-A-t-NH-sd-SMP-HP | 22 ----
.../configs/rcu/v3.12/P5-U-T-NH-sd-SMP-hp | 27 -----
.../configs/rcu/v3.12/P6---t-nh-SD-smp-hp | 18 ----
.../configs/rcu/v3.12/P7-4-T-NH-SD-SMP-HP | 30 ------
.../configs/rcu/v3.12/P7-4-T-NH-SD-SMP-HP-all | 30 ------
.../configs/rcu/v3.12/P7-4-T-NH-SD-SMP-HP-none | 30 ------
.../configs/rcu/v3.12/P7-4-T-NH-SD-SMP-hp | 30 ------
.../selftests/rcutorture/configs/rcu/v3.12/PT1-nh | 23 -----
.../selftests/rcutorture/configs/rcu/v3.12/PT2-NH | 22 ----
.../selftests/rcutorture/configs/rcu/v3.3/CFLIST | 14 ---
.../configs/rcu/v3.3/N1-S-T-NH-SD-SMP-HP | 19 ----
.../configs/rcu/v3.3/N2-2-t-nh-sd-SMP-hp | 20 ----
.../configs/rcu/v3.3/N3-3-T-nh-SD-SMP-hp | 22 ----
.../configs/rcu/v3.3/N4-A-t-NH-sd-SMP-HP | 18 ----
.../configs/rcu/v3.3/N5-U-T-NH-sd-SMP-hp | 22 ----
.../selftests/rcutorture/configs/rcu/v3.3/NT1-nh | 23 -----
.../selftests/rcutorture/configs/rcu/v3.3/NT3-NH | 20 ----
.../configs/rcu/v3.3/P1-S-T-NH-SD-SMP-HP | 20 ----
.../configs/rcu/v3.3/P2-2-t-nh-sd-SMP-hp | 20 ----
.../configs/rcu/v3.3/P3-3-T-nh-SD-SMP-hp | 20 ----
.../configs/rcu/v3.3/P4-A-t-NH-sd-SMP-HP | 22 ----
.../configs/rcu/v3.3/P5-U-T-NH-sd-SMP-hp | 27 -----
.../selftests/rcutorture/configs/rcu/v3.3/PT1-nh | 23 -----
.../selftests/rcutorture/configs/rcu/v3.3/PT2-NH | 22 ----
.../rcutorture/configs/rcu/v3.3/ver_functions.sh | 44 --------
.../selftests/rcutorture/configs/rcu/v3.5/CFLIST | 14 ---
.../configs/rcu/v3.5/N1-S-T-NH-SD-SMP-HP | 19 ----
.../configs/rcu/v3.5/N2-2-t-nh-sd-SMP-hp | 20 ----
.../configs/rcu/v3.5/N3-3-T-nh-SD-SMP-hp | 22 ----
.../configs/rcu/v3.5/N4-A-t-NH-sd-SMP-HP | 18 ----
.../configs/rcu/v3.5/N5-U-T-NH-sd-SMP-hp | 22 ----
.../selftests/rcutorture/configs/rcu/v3.5/NT1-nh | 23 -----
.../selftests/rcutorture/configs/rcu/v3.5/NT3-NH | 20 ----
.../configs/rcu/v3.5/P1-S-T-NH-SD-SMP-HP | 20 ----
.../configs/rcu/v3.5/P2-2-t-nh-sd-SMP-hp | 20 ----
.../configs/rcu/v3.5/P3-3-T-nh-SD-SMP-hp | 20 ----
.../configs/rcu/v3.5/P4-A-t-NH-sd-SMP-HP | 22 ----
.../configs/rcu/v3.5/P5-U-T-NH-sd-SMP-hp | 27 -----
.../selftests/rcutorture/configs/rcu/v3.5/PT1-nh | 23 -----
.../selftests/rcutorture/configs/rcu/v3.5/PT2-NH | 22 ----
.../rcutorture/configs/rcu/v3.5/ver_functions.sh | 57 -----------
.../testing/selftests/rcutorture/doc/TINY_RCU.txt | 2 +-
.../selftests/rcutorture/doc/TREE_RCU-kconfig.txt | 15 ++-
121 files changed, 408 insertions(+), 1858 deletions(-)
create mode 100644 tools/testing/selftests/rcutorture/configs/rcu/TINY02.boot
create mode 100644 tools/testing/selftests/rcutorture/configs/rcu/TREE06.boot
delete mode 100644 tools/testing/selftests/rcutorture/configs/rcu/v0.0/CFLIST
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delete mode 100644 tools/testing/selftests/rcutorture/configs/rcu/v3.5/P1-S-T-NH-SD-SMP-HP
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delete mode 100644 tools/testing/selftests/rcutorture/configs/rcu/v3.5/P4-A-t-NH-sd-SMP-HP
delete mode 100644 tools/testing/selftests/rcutorture/configs/rcu/v3.5/P5-U-T-NH-sd-SMP-hp
delete mode 100644 tools/testing/selftests/rcutorture/configs/rcu/v3.5/PT1-nh
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delete mode 100644 tools/testing/selftests/rcutorture/configs/rcu/v3.5/ver_functions.sh
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