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From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
To: linux-kernel@vger.kernel.org
Cc: mingo@elte.hu, laijs@cn.fujitsu.com, dipankar@in.ibm.com,
	akpm@linux-foundation.org, mathieu.desnoyers@polymtl.ca,
	josh@joshtriplett.org, dvhltc@us.ibm.com, niv@us.ibm.com,
	tglx@linutronix.de, peterz@infradead.org, rostedt@goodmis.org,
	Valdis.Kletnieks@vt.edu, dhowells@redhat.com,
	eric.dumazet@gmail.com
Subject: [PATCH tip/core/rcu 0/7] Yet more RCU commits queued for 2.6.37
Date: Fri, 20 Aug 2010 11:45:21 -0700	[thread overview]
Message-ID: <20100820184521.GA24715@linux.vnet.ibm.com> (raw)

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(-)

             reply	other threads:[~2010-08-20 18:45 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-08-20 18:45 Paul E. McKenney [this message]
2010-08-20 18:45 ` [PATCH tip/core/rcu 1/7] rcu: permit suppressing current grace period's CPU stall warnings Paul E. McKenney
2010-08-20 18:45 ` [PATCH tip/core/rcu 2/7] rcu: repair code-duplication FIXMEs Paul E. McKenney
2010-08-20 18:45 ` [PATCH tip/core/rcu 3/7] rcu: document ways of stalling updates in low-memory situations Paul E. McKenney
2010-08-20 18:45 ` [PATCH tip/core/rcu 4/7] rcu: Upgrade srcu_read_lock() docbook about SRCU grace periods Paul E. McKenney
2010-08-20 18:45 ` [PATCH tip/core/rcu 5/7] rcu: combine duplicate code, courtesy of CONFIG_PREEMPT_RCU Paul E. McKenney
2010-08-20 18:45 ` [PATCH tip/core/rcu 6/7] rcu: apply TINY_PREEMPT_RCU read-side speedup to TREE_PREEMPT_RCU Paul E. McKenney
2010-08-20 18:45 ` [PATCH tip/core/rcu 7/7] rcu: add comment stating that list_empty() applies to RCU-protected lists Paul E. McKenney

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