[GIT PULL rcu/srcu] SRCU commits for 3.9

[Paul E. McKenney]

Hello, Ingo,

This series contains SRCU changes for 3.9.  These include debugging aids,
updates that move towards the goal of permitting srcu_read_lock() and
srcu_read_unlock() to be used from idle and offline CPUs, and a few small
fixes.  These commits are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git rcu/srcu

							Thanx, Paul

-------------->
Lai Jiangshan (8):
      srcu: Simplify __srcu_read_unlock() via this_cpu_dec()
      srcu: Add might_sleep() annotation to synchronize_srcu()
      srcu: Simple cleanup for cleanup_srcu_struct()
      srcu: Remove checks preventing offline CPUs from calling srcu_read_lock()
      srcu: Remove checks preventing idle CPUs from calling srcu_read_lock()
      srcu: Update synchronize_srcu()'s comments
      srcu: Update synchronize_srcu_expedited()'s comments
      srcu: use ACCESS_ONCE() to access sp->completed in srcu_read_lock()

 include/linux/srcu.h |   26 +++-----------------------
 kernel/srcu.c        |   37 ++++++++++++++++---------------------
 2 files changed, 19 insertions(+), 44 deletions(-)

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