Messages in this thread | | | Date | Tue, 19 Jan 2021 20:31:44 -0800 | From | "Paul E. McKenney" <> | Subject | [PATCH tip/core/rcu 0/4] Fix RCU priority boosting |
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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
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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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