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Subject[PATCH tip/core/rcu 0/4] Fix RCU priority boosting
Hello!

This series fixes a bug in which an RCU-priority-boosted task can stay
boosted for some time after it has exited its RCU read-side critical
section. This bug arose during the RCU flavor consolidation effort.
The patches are as follows:

1. Expedite deboost in case of deferred quiescent state.

2. Make TREE03 use real-time tree.use_softirq setting.

3. Run rcuo kthreads at elevated priority in CONFIG_RCU_BOOST
kernels.

4. Fix testing of RCU priority boosting.

Thanx, Paul

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

kernel/rcu/rcutorture.c | 36 +++++++------
kernel/rcu/tree_plugin.h | 28 +++++-----
tools/testing/selftests/rcutorture/configs/rcu/TREE03.boot | 1
3 files changed, 39 insertions(+), 26 deletions(-)

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