[PATCH 0/3] rcu: synchronize_rcu[_expedited]() related fixes

[Frederic Weisbecker]

A few fixes especially for expedited GP polling causing a stall on TREE07,
as reported by Paul.

We may still want to optimize start_poll_synchronize_rcu_expedited() on
UP-no-preempt but I think Paul may be implying this while doing other
fixes.

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

HEAD: 6e5fd7e614fd5c8f0fffeaa140b7ea697bfeb096

Thanks,
	Frederic
---

Frederic Weisbecker (2):
      rcu: Fix expedited GP polling against UP/no-preempt environment
      rcu: Fix preemption mode check on synchronize_rcu[_expedited]()

Valentin Schneider (1):
      preempt/dynamic: Introduce preempt mode accessors


 include/linux/sched.h | 16 +++++++++++++++
 kernel/rcu/tree.c     |  2 +-
 kernel/rcu/tree_exp.h | 57 +++++++++++++++++++++++++++++++--------------------
 kernel/sched/core.c   | 11 ++++++++++
 4 files changed, 63 insertions(+), 23 deletions(-)