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| author | Ingo Molnar <mingo@elte.hu> | 2011-12-14 08:16:43 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2011-12-14 08:16:43 +0100 |
| commit | 919b83452b2e7c1dbced0456015508b4b9585db3 (patch) | |
| tree | 836d0c32b814f7bd5fed83e19b6a2ab77dcf6987 /init | |
| parent | 373da0a2a33018d560afcb2c77f8842985d79594 (diff) | |
| parent | a513f6bab0939800dcf1e7c075e733420cf967c5 (diff) | |
Merge branch 'rcu/next' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/rcu
Diffstat (limited to 'init')
| -rw-r--r-- | init/Kconfig | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/init/Kconfig b/init/Kconfig index 43298f9810f..82b6a4c675b 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -469,14 +469,14 @@ config RCU_FANOUT_EXACT config RCU_FAST_NO_HZ bool "Accelerate last non-dyntick-idle CPU's grace periods" - depends on TREE_RCU && NO_HZ && SMP + depends on NO_HZ && SMP default n help This option causes RCU to attempt to accelerate grace periods - in order to allow the final CPU to enter dynticks-idle state - more quickly. On the other hand, this option increases the - overhead of the dynticks-idle checking, particularly on systems - with large numbers of CPUs. + in order to allow CPUs to enter dynticks-idle state more + quickly. On the other hand, this option increases the overhead + of the dynticks-idle checking, particularly on systems with + large numbers of CPUs. Say Y if energy efficiency is critically important, particularly if you have relatively few CPUs. |