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authorPaul E. McKenney <paulmck@linux.vnet.ibm.com>2014-06-23 23:09:52 +0400
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>2014-07-09 20:15:31 +0400
commit11992c703a1c7d95f5d8759498d7617d4a504819 (patch)
treefa2fff5b57493c4912c6b1f8e514fc61f4d792b5 /lib
parentd860d40327dde251d508a234fa00bd0d90fbb656 (diff)
downloadlinux-11992c703a1c7d95f5d8759498d7617d4a504819.tar.xz
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 <paulmck@linux.vnet.ibm.com> Cc: Andi Kleen <ak@linux.intel.com> [ paulmck: Remove definition and uses as noted by Paul Bolle. ]
Diffstat (limited to 'lib')
-rw-r--r--lib/Kconfig.debug14
1 files changed, 0 insertions, 14 deletions
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 7cfcc1b8e101..4c37d5459b41 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