Messages in this thread Patch in this message | | | From | "Paul E. McKenney" <> | Subject | [PATCH tip/core/rcu 14/24] rcu: Directly drive TASKS_RCU from Kconfig | Date | Tue, 12 May 2015 15:30:44 -0700 |
| |
From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
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> --- init/Kconfig | 4 +--- lib/Kconfig.debug | 1 + 2 files changed, 2 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 diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index e1af93ae246b..c4e1cf04cf57 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -1233,6 +1233,7 @@ config RCU_TORTURE_TEST depends on DEBUG_KERNEL select TORTURE_TEST select SRCU + select TASKS_RCU default n help This option provides a kernel module that runs torture tests -- 1.8.1.5
| |