From: Linus Torvalds <torvalds@linux-foundation.org>
Date: Wed, 8 Nov 2023 17:47:52 +0000 (-0800)
Subject: Merge tag 'rcu-fixes-v6.7' of git://git.kernel.org/pub/scm/linux/kernel/git/frederic... 
X-Git-Tag: v6.7-rc1~35
X-Git-Url: http://git.samba.org/samba.git/?a=commitdiff_plain;h=90450a06162e6c71ab813ea22a83196fe7cff4bc;p=sfrench%2Fcifs-2.6.git

Merge tag 'rcu-fixes-v6.7' of git://git./linux/kernel/git/frederic/linux-dynticks

Pull RCU fixes from Frederic Weisbecker:

 - 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 but 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.

* tag 'rcu-fixes-v6.7' of git://git.kernel.org/pub/scm/linux/kernel/git/frederic/linux-dynticks:
  rcu/tasks-trace: Handle new PF_IDLE semantics
  rcu/tasks: Handle new PF_IDLE semantics
  rcu: Introduce rcu_cpu_online()
  rcu: Break rcu_node_0 --> &rq->__lock order
---

90450a06162e6c71ab813ea22a83196fe7cff4bc