[PATCH RFC tip/core/rcu 0/12] preview of RCU patches for 2.6.38

From: Paul E. McKenney
Date: Sat Nov 06 2010 - 22:05:29 EST


Hello!

This patchset contains RCU priority boosting for the tiny RCU
implementations and a number of fixes and cleanups. The patches
are as follows:

1. Add rcutorture tests to check for boosting.
2-6. RCU priority boosting for the tiny RCU implementations.
7. Fix a few naming holdouts from old Classic RCU.
8. Move synchronize_sched_expedited() out of sched.c
(from Lai Jiangshan).
9. Simplify the RCU callback orphan/adopt code for CPU hotplug
(from Lai Jiangshan).
10. Update RCU tracing documentation to reflect patch #9.
11. Fix a race condition in synchronize_sched_expedited(),
but Tejun Heo has suggested another approach that might
be better longer term.
12. Make synchronize_srcu_expedited() spin for a bit to avoid
blocking -- again, there may be a better long-term fix.

For a testing-only version of this patchset from git, please see:

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

Thanx, Paul

Documentation/RCU/trace.txt | 12 -
b/Documentation/RCU/trace.txt | 132 ++++++++++++-
b/include/linux/init_task.h | 9
b/include/linux/rcupdate.h | 1
b/include/linux/rcutiny.h | 8
b/include/linux/rcutree.h | 1
b/include/linux/sched.h | 11 -
b/init/Kconfig | 39 +++
b/kernel/rcutiny.c | 71 +++++--
b/kernel/rcutiny_plugin.h | 15 -
b/kernel/rcutorture.c | 270 ++++++++++++++++++++++++++-
b/kernel/rcutree.c | 81 ++------
b/kernel/rcutree.h | 16 -
b/kernel/rcutree_plugin.h | 71 +++++++
b/kernel/rcutree_trace.c | 8
b/kernel/sched.c | 69 ------
b/kernel/srcu.c | 8
include/linux/rcupdate.h | 1
include/linux/rcutiny.h | 5
include/linux/rcutree.h | 1
init/Kconfig | 1
kernel/rcutiny.c | 70 +++----
kernel/rcutiny_plugin.h | 418 ++++++++++++++++++++++++++++++++++++++++--
kernel/rcutree.c | 10 -
kernel/rcutree_plugin.h | 28 ++
kernel/rcutree_trace.c | 4
26 files changed, 1090 insertions(+), 270 deletions(-)
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