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Merge branch 'rcu/next' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/rcu

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Pull RCU updates from Paul E. McKenney:

1.	Changes to rcutorture and to RCU documentation. Posted to LKML at
        https://lkml.org/lkml/2013/1/26/188.

2.	Enhancements to uniprocessor handling in tiny RCU. Posted to LKML
        at https://lkml.org/lkml/2013/1/27/2.

3.	Tag RCU callbacks with grace-period number to simplify callback
        advancement. Posted to LKML at https://lkml.org/lkml/2013/1/26/203.

4.	Miscellaneous fixes. Posted to LKML at https://lkml.org/lkml/2013/1/26/204.

Signed-off-by: Ingo Molnar <[email protected]>
This commit is contained in:
Ingo Molnar 2013-02-04 19:06:34 +01:00
commit 9228b5f243
17 changed files with 539 additions and 189 deletions
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12
init/Kconfig
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@ -453,7 +453,7 @@ config TREE_RCU
config TREE_PREEMPT_RCU
bool "Preemptible tree-based hierarchical RCU"
depends on PREEMPT && SMP
depends on PREEMPT
help
This option selects the RCU implementation that is
designed for very large SMP systems with hundreds or
@ -461,6 +461,8 @@ config TREE_PREEMPT_RCU
is also required. It also scales down nicely to
smaller systems.
Select this option if you are unsure.
config TINY_RCU
bool "UP-only small-memory-footprint RCU"
depends on !PREEMPT && !SMP
@ -486,6 +488,14 @@ config PREEMPT_RCU
This option enables preemptible-RCU code that is common between
the TREE_PREEMPT_RCU and TINY_PREEMPT_RCU implementations.
config RCU_STALL_COMMON
def_bool ( TREE_RCU || TREE_PREEMPT_RCU || RCU_TRACE )
help
This option enables RCU CPU stall code that is common between
the TINY and TREE variants of RCU. The purpose is to allow
the tiny variants to disable RCU CPU stall warnings, while
making these warnings mandatory for the tree variants.
config CONTEXT_TRACKING
bool