linux-kernel - [PATCH tip/core/rcu 0/7] Yet more RCU commits queued for 2.6.37

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Message-ID: <20100820184521.GA24715@linux.vnet.ibm.com>
Date:	Fri, 20 Aug 2010 11:45:21 -0700
From:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
To:	linux-kernel@...r.kernel.org
Cc:	mingo@...e.hu, laijs@...fujitsu.com, dipankar@...ibm.com,
	akpm@...ux-foundation.org, mathieu.desnoyers@...ymtl.ca,
	josh@...htriplett.org, dvhltc@...ibm.com, niv@...ibm.com,
	tglx@...utronix.de, peterz@...radead.org, rostedt@...dmis.org,
	Valdis.Kletnieks@...edu, dhowells@...hat.com,
	eric.dumazet@...il.com
Subject: [PATCH tip/core/rcu 0/7] Yet more RCU commits queued for 2.6.37

Hello!

This patchset shows additional patches queued for 2.6.37, over
and above those posted at http://lkml.org/lkml/2010/7/14/334 and
at http://lkml.org/lkml/2010/8/9/332.  These are all trivial fixes.
The patches are as follows:

1.	Allow kernel debuggers to avoid spurious RCU CPU stall warnings
	when restarting from a breakpoint via a new rcu_cpu_stall_reset().
2.	Repair code-duplication FIXMEs.  This code was temporarily
	duplicated to avoid inter-patch dependencies in the RCU tree.
3.	Document some additional ways of stalling updates to prevent
	call_rcu()-induced OOM situations.
4.	Update srcu_read_lock() docbook comment to note that it is
	illegal to wait for a given flavor of SRCU grace period while
	in that same flavor of SRCU read-side critical section.
5.	Combine duplicate code, courtesy of a newly refurbished
	CONFIG_PREEMPT_RCU symbol.  Also convert from macro to
	static inline function in a couple of places.
6.	Apply the TINY_PREEMPT_RCU read-side speedups/fixes to
	TREE_PREEMPT_RCU.  This update to TINY_PREEMPT_RCU update was
	posted at http://lkml.org/lkml/2010/8/17/437.
7.	Add a comment stating that list_empty() serves the function of
	the non-existent list_empty_rcu().

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

 b/Documentation/RCU/checklist.txt |   23 ++++++++---
 b/include/linux/rculist.h         |    9 ++++
 b/include/linux/rcupdate.h        |   15 +++++++
 b/include/linux/rcutiny.h         |    4 ++
 b/include/linux/rcutree.h         |    1 
 b/include/linux/srcu.h            |    7 +++
 b/kernel/rcutiny_plugin.h         |    4 --
 b/kernel/rcutree.c                |   20 ++++++++++
 b/kernel/rcutree.h                |    1 
 b/kernel/rcutree_plugin.h         |   18 +++++++++
 include/linux/rcupdate.h          |   75 ++++++++++++++++++++++++++++++++++++--
 include/linux/rcutiny.h           |   58 -----------------------------
 include/linux/rcutree.h           |   56 ----------------------------
 kernel/rcutree.h                  |    3 -
 kernel/rcutree_plugin.h           |   15 ++-----
 15 files changed, 166 insertions(+), 143 deletions(-)
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