Banishing kthreads

Hello, Ingo,

This pull request banishes RCU kthreads in the RCU_BOOST=n case, in response to popular demand. There are two commits in this series:

1. Minimal patch that #ifdefs out the kthread code.

2. Code-movement patch that puts the code #ifdefed out above
under existing #ifdefs in kernel/rcutree_plugin.h.

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/urgent

Thanx, Paul

------------------>

Paul E. McKenney (1):
rcu: Simplify curing of load woes

Shaohua Li (1):
rcu: Use softirq to address performance regression

 Documentation/filesystems/proc.txt  |    1 +
 include/linux/interrupt.h           |    1 +
 include/trace/events/irq.h          |    3 +-
 kernel/rcutree.c                    |   88 ++++++++++++++++-------------------
 kernel/rcutree.h                    |    1 +
 kernel/rcutree_plugin.h             |   20 ++++----
 kernel/softirq.c                    |    2 +-
 tools/perf/util/trace-event-parse.c |    1 +
 8 files changed, 57 insertions(+), 60 deletions(-)

This time with the correct request-pull info. :-/

Thanx, Paul

------------------->

Paul E. McKenney (2):
rcu: use softirq instead of kthreads except when RCU_BOOST=y
rcu: Move RCU_BOOST #ifdefs to header file

 kernel/rcutree.c        |  382 ++-----------------------------------------
 kernel/rcutree.h        |   13 ++-
 kernel/rcutree_plugin.h |  419 +++++++++++++++++++++++++++++++++++++++++++++--
 kernel/rcutree_trace.c  |   32 +++-
 4 files changed, 456 insertions(+), 390 deletions(-)

Pulled, thanks a lot Paul!

Ingo