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rcu: add tracing for TINY_RCU and TINY_PREEMPT_RCU

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Add tracing for the tiny RCU implementations, including statistics on
boosting in the case of TINY_PREEMPT_RCU and RCU_BOOST.

Signed-off-by: Paul E. McKenney <paul.mckenney@linaro.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
This commit is contained in:
Paul E. McKenney
2010-09-30 21:26:52 -07:00
committed by Paul E. McKenney
parent 24278d1483
commit 9e571a82f0
3 changed files with 226 additions and 11 deletions
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init/Kconfig
-1
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@@ -384,7 +384,6 @@ config PREEMPT_RCU
config RCU_TRACE
bool "Enable tracing for RCU"
depends on TREE_RCU || TREE_PREEMPT_RCU
help
This option provides tracing in RCU which presents stats
in debugfs for debugging RCU implementation.