diff options
| author | Paul E. McKenney <paul.mckenney@linaro.org> | 2011-02-07 15:47:15 -0500 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2011-05-06 02:16:55 -0400 |
| commit | 27f4d28057adf98750cf863c40baefb12f5b6d21 (patch) | |
| tree | a66584d2cb68cebda327313f78b8f4eb602ed4ef /init/Kconfig | |
| parent | a26ac2455ffcf3be5c6ef92bc6df7182700f2114 (diff) | |
rcu: priority boosting for TREE_PREEMPT_RCU
Add priority boosting for TREE_PREEMPT_RCU, similar to that for
TINY_PREEMPT_RCU. This is enabled by the default-off RCU_BOOST
kernel parameter. The priority to which to boost preempted
RCU readers is controlled by the RCU_BOOST_PRIO kernel parameter
(defaulting to real-time priority 1) and the time to wait before
boosting the readers who are blocking a given grace period is
controlled by the RCU_BOOST_DELAY kernel parameter (defaulting to
500 milliseconds).
Signed-off-by: Paul E. McKenney <paul.mckenney@linaro.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Diffstat (limited to 'init/Kconfig')
| -rw-r--r-- | init/Kconfig | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/init/Kconfig b/init/Kconfig index d886b1e9278e..2d964fa40f5b 100644 --- a/init/Kconfig +++ b/init/Kconfig | |||
| @@ -485,7 +485,7 @@ config TREE_RCU_TRACE | |||
| 485 | 485 | ||
| 486 | config RCU_BOOST | 486 | config RCU_BOOST |
| 487 | bool "Enable RCU priority boosting" | 487 | bool "Enable RCU priority boosting" |
| 488 | depends on RT_MUTEXES && TINY_PREEMPT_RCU | 488 | depends on RT_MUTEXES && PREEMPT_RCU |
| 489 | default n | 489 | default n |
| 490 | help | 490 | help |
| 491 | This option boosts the priority of preempted RCU readers that | 491 | This option boosts the priority of preempted RCU readers that |