[PATCH 00/10] rcu: Make rcu_core() safe in PREEMPT_RT with NOCB + a few other fixes v3

[Frederic Weisbecker]

Changes since v2:

_ Drop first patch (got applied by Paul)

_ Fix unwanted rcu_core() hanging around after setting a CPU as nocb
  on boot. This resulted in terrible rcu_barrier() misordering.
  I simply forgot to clear SEGCBLIST_RCU_CORE on nocb CPUs on boot.

git://git.kernel.org/pub/scm/linux/kernel/git/frederic/linux-dynticks.git
	rcu/rt-v3

HEAD: 7610a2ba5eaca8caf977ed45bad251ac693feefa

Thanks,
	Frederic
---

Frederic Weisbecker (9):
      rcu/nocb: Prepare state machine for a new step
      rcu/nocb: Invoke rcu_core() at the start of deoffloading
      rcu/nocb: Make rcu_core() callbacks acceleration (de-)offloading safe
      rcu/nocb: Check a stable offloaded state to manipulate qlen_last_fqs_check
      rcu/nocb: Use appropriate rcu_nocb_lock_irqsave()
      rcu/nocb: Limit number of softirq callbacks only on softirq
      rcu: Fix callbacks processing time limit retaining cond_resched()
      rcu: Apply callbacks processing time limit only on softirq
      rcu/nocb: Don't invoke local rcu core on callback overload from nocb kthread

Thomas Gleixner (1):
      rcu/nocb: Make rcu_core() callbacks acceleration preempt-safe


 include/linux/rcu_segcblist.h | 51 ++++++++++++++++++-------
 kernel/rcu/rcu_segcblist.c    | 10 ++---
 kernel/rcu/rcu_segcblist.h    | 12 +++---
 kernel/rcu/tree.c             | 87 +++++++++++++++++++++++++++++--------------
 kernel/rcu/tree_nocb.h        | 33 ++++++++++++----
 5 files changed, 133 insertions(+), 60 deletions(-)