Techwizz/kernel-fxtec-pro1x
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

rcu: Remove prompt for RCU implementation

Browse source 
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>
This commit is contained in:
Pranith Kumar 2015-04-21 17:29:42 -04:00 committed by Paul E. McKenney
parent 26730f55c2
commit e72aeafc66
1 changed files with 6 additions and 12 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

18
init/Kconfig
View file

@ -465,13 +465,9 @@ endmenu # "CPU/Task time and stats accounting"
menu "RCU Subsystem" menu "RCU Subsystem"
choice
prompt "RCU Implementation"
default TREE_RCU
config TREE_RCU config TREE_RCU
bool "Tree-based hierarchical RCU" bool
depends on !PREEMPT && SMP default y if !PREEMPT && SMP
help help
This option selects the RCU implementation that is This option selects the RCU implementation that is
designed for very large SMP system with hundreds or designed for very large SMP system with hundreds or
@ -479,8 +475,8 @@ config TREE_RCU
smaller systems. smaller systems.
config PREEMPT_RCU config PREEMPT_RCU
bool "Preemptible tree-based hierarchical RCU" bool
depends on PREEMPT default y if PREEMPT
help help
This option selects the RCU implementation that is This option selects the RCU implementation that is
designed for very large SMP systems with hundreds or designed for very large SMP systems with hundreds or
@ -491,16 +487,14 @@ config PREEMPT_RCU
Select this option if you are unsure. Select this option if you are unsure.
config TINY_RCU config TINY_RCU
bool "UP-only small-memory-footprint RCU" bool
depends on !PREEMPT && !SMP default y if !PREEMPT && !SMP
help help
This option selects the RCU implementation that is This option selects the RCU implementation that is
designed for UP systems from which real-time response designed for UP systems from which real-time response
is not required. This option greatly reduces the is not required. This option greatly reduces the
memory footprint of RCU. memory footprint of RCU.
endchoice
config RCU_EXPERT config RCU_EXPERT
bool "Make expert-level adjustments to RCU configuration" bool "Make expert-level adjustments to RCU configuration"
default n default n