[GIT PULL] RCU fixes for v6.7-rc1

[Frederic Weisbecker]

Hello Linus,

Please pull the latest RCU git tree from:

  git://git.kernel.org/pub/scm/linux/kernel/git/frederic/linux-dynticks.git tags/rcu-fixes-v6.7

for you to fetch changes up to a80712b9cc7e57830260ec5e1feb9cdb59e1da2f:

  rcu/tasks-trace: Handle new PF_IDLE semantics (2023-11-01 22:12:03 +0100)

----------------------------------------------------------------
RCU fixes for v6.7

* Fix a lock inversion between scheduler and RCU introduced
  in v6.2-rc4. The scenario could trigger on any user of RCU_NOCB
  (mostly Android and also nohz_full).

* Fix PF_IDLE semantic changes introduced in v6.6-rc3 breaking some
  RCU-Tasks and RCU-Tasks-Trace expectations as to what exactly is
  an idle task. This resulted in potential spurious stalls and
  warnings.

----------------------------------------------------------------
Frederic Weisbecker (3):
      rcu: Introduce rcu_cpu_online()
      rcu/tasks: Handle new PF_IDLE semantics
      rcu/tasks-trace: Handle new PF_IDLE semantics

Peter Zijlstra (1):
      rcu: Break rcu_node_0 --> &rq->__lock order

 kernel/rcu/rcu.h   |  2 ++
 kernel/rcu/tasks.h | 32 +++++++++++++++++++++++++++++---
 kernel/rcu/tree.c  | 43 ++++++++++++++++++++++++++++++++-----------
 3 files changed, 63 insertions(+), 14 deletions(-)