diff options
| author | Pranith Kumar <bobby.prani@gmail.com> | 2015-04-21 17:29:42 -0400 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2015-05-27 12:59:06 -0700 |
| commit | e72aeafc66060d3fc6b4d2120db00058572b3186 (patch) | |
| tree | 74f9b389cf36209f661b0437d84bc4ca31c58b29 /init/Kconfig | |
| parent | 26730f55c2842b4ee06a5307d58265db7dd26065 (diff) | |
| download | lwn-e72aeafc66060d3fc6b4d2120db00058572b3186.tar.gz lwn-e72aeafc66060d3fc6b4d2120db00058572b3186.zip | |
rcu: Remove prompt for RCU implementation
The RCU implementation is chosen based on PREEMPT and SMP config options
and is not really a user-selectable choice. This commit removes the
menu entry, given that there is not much point in calling something a
choice when there is in fact no choice.. The TINY_RCU, TREE_RCU, and
PREEMPT_RCU Kconfig options continue to be selected based solely on the
values of the PREEMPT and SMP options.
Signed-off-by: Pranith Kumar <bobby.prani@gmail.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Diffstat (limited to 'init/Kconfig')
| -rw-r--r-- | init/Kconfig | 18 |
1 files changed, 6 insertions, 12 deletions
diff --git a/init/Kconfig b/init/Kconfig index af2c93c4a105..4c08197044f1 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -465,13 +465,9 @@ endmenu # "CPU/Task time and stats accounting" menu "RCU Subsystem" -choice - prompt "RCU Implementation" - default TREE_RCU - config TREE_RCU - bool "Tree-based hierarchical RCU" - depends on !PREEMPT && SMP + bool + default y if !PREEMPT && SMP help This option selects the RCU implementation that is designed for very large SMP system with hundreds or @@ -479,8 +475,8 @@ config TREE_RCU smaller systems. config PREEMPT_RCU - bool "Preemptible tree-based hierarchical RCU" - depends on PREEMPT + bool + default y if PREEMPT help This option selects the RCU implementation that is designed for very large SMP systems with hundreds or @@ -491,16 +487,14 @@ config PREEMPT_RCU Select this option if you are unsure. config TINY_RCU - bool "UP-only small-memory-footprint RCU" - depends on !PREEMPT && !SMP + bool + default y if !PREEMPT && !SMP help This option selects the RCU implementation that is designed for UP systems from which real-time response is not required. This option greatly reduces the memory footprint of RCU. -endchoice - config RCU_EXPERT bool "Make expert-level adjustments to RCU configuration" default n |