From: Paul E. McKenney on
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:// 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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