From 11992c703a1c7d95f5d8759498d7617d4a504819 Mon Sep 17 00:00:00 2001 From: "Paul E. McKenney" Date: Mon, 23 Jun 2014 12:09:52 -0700 Subject: rcu: Remove CONFIG_PROVE_RCU_DELAY The CONFIG_PROVE_RCU_DELAY Kconfig parameter doesn't appear to be very effective at finding race conditions, so this commit removes it. Signed-off-by: Paul E. McKenney Cc: Andi Kleen [ paulmck: Remove definition and uses as noted by Paul Bolle. ] --- lib/Kconfig.debug | 14 -------------- 1 file changed, 14 deletions(-) (limited to 'lib/Kconfig.debug') diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index 7cfcc1b8e1017..4c37d5459b41e 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -1131,20 +1131,6 @@ config PROVE_RCU_REPEATEDLY Say N if you are unsure. -config PROVE_RCU_DELAY - bool "RCU debugging: preemptible RCU race provocation" - depends on DEBUG_KERNEL && PREEMPT_RCU - default n - help - There is a class of races that involve an unlikely preemption - of __rcu_read_unlock() just after ->rcu_read_lock_nesting has - been set to INT_MIN. This feature inserts a delay at that - point to increase the probability of these races. - - Say Y to increase probability of preemption of __rcu_read_unlock(). - - Say N if you are unsure. - config SPARSE_RCU_POINTER bool "RCU debugging: sparse-based checks for pointer usage" default n -- cgit v1.2.3