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authorPaul E. McKenney <paulmck@linux.vnet.ibm.com>2015-04-20 14:42:50 +0200
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>2015-05-27 21:59:03 +0200
commit82d0f4c089991e6b302d961f0320282bf91652d7 (patch)
tree1ba0f3bd15f4746888499523d86462f1ae054caf /init
parentrcu: Provide diagnostic option to slow down grace-period scans (diff)
downloadlinux-82d0f4c089991e6b302d961f0320282bf91652d7.tar.xz
linux-82d0f4c089991e6b302d961f0320282bf91652d7.zip
rcu: Directly drive TASKS_RCU from Kconfig
Currently, Kconfig will ask the user whether TASKS_RCU should be set. This is silly because Kconfig already has all the information that it needs to set this parameter. This commit therefore directly drives the value of TASKS_RCU via "select" statements. Which means that as subsystems require TASKS_RCU, those subsystems will need to add "select" statements of their own. Reported-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Steven Rostedt <rostedt@goodmis.org> Reviewed-by: Pranith Kumar <bobby.prani@gmail.com>
Diffstat (limited to 'init')
-rw-r--r--init/Kconfig4
1 files changed, 1 insertions, 3 deletions
diff --git a/init/Kconfig b/init/Kconfig
index dc24dec60232..73db30a76afa 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -509,7 +509,7 @@ config SRCU
sections.
config TASKS_RCU
- bool "Task_based RCU implementation using voluntary context switch"
+ bool
default n
select SRCU
help
@@ -517,8 +517,6 @@ config TASKS_RCU
only voluntary context switch (not preemption!), idle, and
user-mode execution as quiescent states.
- If unsure, say N.
-
config RCU_STALL_COMMON
def_bool ( TREE_RCU || PREEMPT_RCU || RCU_TRACE )
help