[PATCH RFC v1 0/4] rcu/nocb: Clean ups and rcutorture test configs

[Joel Fernandes]

This series contains clean ups for the RCU NOCB code and adds new
rcutorture test configurations for v7.1.

The first two patches consolidate duplicated code in the NOCB
implementation. The last two patches add new rcutorture configs:
- NOCB01 exercises CONFIG_RCU_LAZY combined with CONFIG_RCU_NOCB_CPU.
- NOCB02 exercises the rcu_nocb_poll polling mode code paths.
These configs are not added to CFLIST to avoid increasing default test
duration. The series passes overnight rcutorture testing.

Joel Fernandes (4):
  rcu/nocb: Consolidate rcu_nocb_cpu_offload/deoffload functions
  rcu/nocb: Extract nocb_bypass_needs_flush() to reduce duplication
  rcutorture: Add NOCB01 config for RCU_LAZY torture testing
  rcutorture: Add NOCB02 config for nocb poll mode testing

 kernel/rcu/tree_nocb.h                        | 140 +++++++++++-------
 .../selftests/rcutorture/configs/rcu/NOCB01   |  21 +++
 .../rcutorture/configs/rcu/NOCB01.boot        |   2 +
 .../selftests/rcutorture/configs/rcu/NOCB02   |  20 +++
 .../rcutorture/configs/rcu/NOCB02.boot        |   3 +
 5 files changed, 129 insertions(+), 57 deletions(-)
 create mode 100644 tools/testing/selftests/rcutorture/configs/rcu/NOCB01
 create mode 100644 tools/testing/selftests/rcutorture/configs/rcu/NOCB01.boot
 create mode 100644 tools/testing/selftests/rcutorture/configs/rcu/NOCB02
 create mode 100644 tools/testing/selftests/rcutorture/configs/rcu/NOCB02.boot

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2.34.1