linux-kernel - [GIT PULL rcu/next] rcu commits for 2.6.38

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Date:	Wed, 22 Dec 2010 21:37:36 -0800
From:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
To:	mingo@...e.hu
Cc:	linux-kernel@...r.kernel.org, laijs@...fujitsu.com, tj@...nel.org,
	fweisbec@...il.com, mk@....zgora.pl
Subject: [GIT PULL rcu/next] rcu commits for 2.6.38

Hello, Ingo,

This pull request covers RCU changes for 2.6.38.  These include RCU
priority boosting for TINY_RCU and TINY_PREEMPT_RCU, some cleanups from
Lai Jiangshan, fixes to synchronize_sched_expedited() including some
from Tejun Heo, some nohz fixes from Frederic Weisbecker, some changes
to reduce lock contention for internal-to-RCU locks, and a fix from
Mariusz Kozlowski to fix unbalanced parentheses.

These changes are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-2.6-rcu.git rcu/next

------------------>
Frederic Weisbecker (2):
      rcu: Stop chasing QS if another CPU did it for us
      rcu: Keep gpnum and completed fields synchronized

Lai Jiangshan (2):
      rcu,cleanup: move synchronize_sched_expedited() out of sched.c
      rcu,cleanup: simplify the code when cpu is dying

Mariusz Kozlowski (1):
      rculist: fix borked __list_for_each_rcu() macro

Paul E. McKenney (14):
      rcu: add priority-inversion testing to rcutorture
      rcu: move TINY_RCU from softirq to kthread
      rcu: priority boosting for TINY_PREEMPT_RCU
      rcu: add tracing for TINY_RCU and TINY_PREEMPT_RCU
      rcu: document TINY_RCU and TINY_PREEMPT_RCU tracing.
      rcu: Distinguish between boosting and boosted
      rcu: get rid of obsolete "classic" names in TREE_RCU tracing
      rcu: update documentation/comments for Lai's adoption patch
      rcu: fix race condition in synchronize_sched_expedited()
      rcu: Make synchronize_srcu_expedited() fast if running readers
      rcu: fine-tune grace-period begin/end checks
      rcu: limit rcu_node leaf-level fanout
      rcu: reduce __call_rcu()-induced contention on rcu_node structures
      rcu: remove unused __list_for_each_rcu() macro

Tejun Heo (1):
      rcu: increase synchronize_sched_expedited() batching

 Documentation/RCU/trace.txt |  144 +++++++++++++--
 include/linux/init_task.h   |    9 +-
 include/linux/rculist.h     |    5 -
 include/linux/rcupdate.h    |    4 +-
 include/linux/rcutiny.h     |   13 +-
 include/linux/rcutree.h     |    2 +
 include/linux/sched.h       |   11 +-
 init/Kconfig                |   55 ++++++-
 kernel/rcutiny.c            |  105 +++++++----
 kernel/rcutiny_plugin.h     |  433 +++++++++++++++++++++++++++++++++++++++++--
 kernel/rcutorture.c         |  270 ++++++++++++++++++++++++++-
 kernel/rcutree.c            |  156 ++++++++--------
 kernel/rcutree.h            |   61 +++----
 kernel/rcutree_plugin.h     |  135 +++++++++++++-
 kernel/rcutree_trace.c      |   12 +-
 kernel/sched.c              |   69 -------
 kernel/srcu.c               |    8 +-
 17 files changed, 1207 insertions(+), 285 deletions(-)
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