Commit-ID: 82d0f4c089991e6b302d961f0320282bf91652d7 Gitweb: http://git.kernel.org/tip/82d0f4c089991e6b302d961f0320282bf91652d7 Author: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx> AuthorDate: Mon, 20 Apr 2015 05:42:50 -0700 Committer: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx> CommitDate: Wed, 27 May 2015 12:59:03 -0700 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@xxxxxxxxxx> Signed-off-by: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx> Cc: Steven Rostedt <rostedt@xxxxxxxxxxx> Reviewed-by: Pranith Kumar <bobby.prani@xxxxxxxxx> --- init/Kconfig | 4 +--- lib/Kconfig.debug | 1 + 2 files changed, 2 insertions(+), 3 deletions(-) diff --git a/init/Kconfig b/init/Kconfig index dc24dec..73db30a 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 e1af93a..c4e1cf0 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 -- To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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