linux-kernel - [GIT RFC PULL] RCU changes for 2.6.35

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Message-ID: <20100507212220.GA10465@linux.vnet.ibm.com>
Date:	Fri, 7 May 2010 14:22:20 -0700
From:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
To:	mingo@...e.hu
Cc:	linux-kernel@...r.kernel.org, akpm@...ux-foundation.org,
	a.p.zijlstra@...llo.nl, tglx@...utronix.de
Subject: [GIT RFC PULL] RCU changes for 2.6.35

Hello, Ingo,

Here is the first installment of RCU changes for 2.6.35.  These commits
are based on top of the rcu/urgent set sent yesterday.  If you would rather
rcu/urgent be merged into tip/core/rcu and then this set based on top of
that, or some other arrangement, please let me know.

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

There are two more sets of commits queued:

o	Mathieu's debugobjects changes.  These need to be reworked in
	order to coordinate with other maintainer trees, and also to
	get the relevant Acked-by:s.  This will eventually apply in
	three stages: (1) add new RCU APIs, (2) apply these APIs into
	various trees, and (3) remove old RCU APIs.

o	Arnd's "sparse" checks.  These require a quadruple-action approach:
	(1) add a new RCU API member rcu_dereference_index_check(),
	(2) a couple of commits must be accepted into maintainer trees
	(networking, vfs, and mce), (3) a pair of RCU-infrastructure
	patches, and finally (4) a number of patches to apply __rcu
	attributes to various trees.

							Thanx, Paul

------------------>
 Lai Jiangshan (4)
	 rcu: optionally leave lockdep enabled after RCU lockdep splat
	 rcu: make dead code really dead
	 rcu: move some code from macro to function
	 rcu: ignore offline CPUs in last non-dyntick-idle CPU check

 Paul E. McKenney (16)
	 rcu: substitute set_need_resched for sending resched IPIs
	 rcu: Fix bogus CONFIG_PROVE_LOCKING in comments to reflect reality.
	 rcu: fix now-bogus rcu_scheduler_active comments.
	 rcu: shrink rcutiny by making synchronize_rcu_bh() be inline
	 rcu: rename rcutiny rcu_ctrlblk to rcu_sched_ctrlblk
	 rcu: refactor RCU's context-switch handling
	 rcu: slim down rcutiny by removing rcu_scheduler_active and friends
	 rcu: enable CPU_STALL_VERBOSE by default
	 rcu: disable CPU stall warnings upon panic
	 rcu: print boot-time console messages if RCU configs out of ordinary
	 rcu: improve RCU CPU stall-warning messages
	 rcu: permit discontiguous cpu_possible_mask CPU numbering
	 rcu: reduce the number of spurious RCU_SOFTIRQ invocations
	 rcu: improve the RCU CPU-stall warning documentation
	 rcu: make SRCU usable in modules
	 rcu: RCU_FAST_NO_HZ must check RCU dyntick state
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