Hello!
This series provides miscellaneous fixes:
1. Document deadlock-avoidance information in rcu_read_unlock()'s
docbook comment header.
2. Remove obsolete references to TINY_PREEMPT_RCU.
3. Add deadlock explanation to local_irq_save() call in
__lock_task_sighand().
4. Make the rcu_node arrays be static const char * const,
courtesy of Fabian Frederick.
5. Remove redundant ACCESS_ONCE() from tick_do_timer_cpu under
#ifdef CONFIG_NO_HZ_FULL.
6. Eliminate read-modify-write ACCESS_ONCE() calls.
7. Loosen __call_rcu()'s rcu_head alignment constraint to handle
m68k's 16-bit alignment.
8. Allow post-unlock reference for rt_mutex.
9. Check both root and current rcu_node structures when setting up
future grace periods, courtesy of Pranith Kumar.
10. Simplify priority boosting by putting rt_mutex in rcu_node
structure.
11. Bind grace-period kthreads to no-NO_HZ_FULL CPUs instead of the
timekeeping CPU, at least for CONFIG_NO_HZ_FULL_SYSIDLE=n.
12. Don't use NMIs to dump other CPUs' stacks.
13. Use __this_cpu_read() instead of per_cpu_ptr(), courtesy of Shan Wei.
14. Remove CONFIG_PROVE_RCU_DELAY.
15. Fix __rcu_reclaim to use true/false instead of 1/0.
16. Fix sparse warning in rcu_initiate_boost(), courtesy of Pranith
Kumar.
17. Fix sparse warning in rcu_report_unblock_qs_rnp(), again courtesy
of Pranith Kumar.
Thanx, Paul
------------------------------------------------------------------------
b/include/linux/init_task.h | 9 --
b/include/linux/rcupdate.h | 45 ++++++++--
b/include/linux/sched.h | 6 -
b/include/linux/tick.h | 19 ++++
b/init/Kconfig | 2
b/kernel/rcu/rcu.h | 8 +
b/kernel/rcu/srcu.c | 4
b/kernel/rcu/tree.c | 59 ++++++--------
b/kernel/rcu/tree.h | 8 +
b/kernel/rcu/tree_plugin.h | 52 +++++++-----
b/kernel/rcu/update.c | 3
b/kernel/signal.c | 4
b/kernel/time/tick-sched.c | 10 ++
b/tools/testing/selftests/rcutorture/configs/rcu/TREE01 | 1
b/tools/testing/selftests/rcutorture/configs/rcu/TREE02 | 1
b/tools/testing/selftests/rcutorture/configs/rcu/TREE02-T | 1
b/tools/testing/selftests/rcutorture/configs/rcu/TREE03 | 1
b/tools/testing/selftests/rcutorture/configs/rcu/TREE04 | 1
b/tools/testing/selftests/rcutorture/configs/rcu/TREE05 | 1
b/tools/testing/selftests/rcutorture/configs/rcu/TREE06 | 1
b/tools/testing/selftests/rcutorture/configs/rcu/TREE07 | 1
b/tools/testing/selftests/rcutorture/configs/rcu/TREE08 | 1
b/tools/testing/selftests/rcutorture/configs/rcu/TREE08-T | 1
b/tools/testing/selftests/rcutorture/configs/rcu/TREE09 | 1
24 files changed, 147 insertions(+), 93 deletions(-)
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