path: root/lib
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authorLinus Torvalds <>2008-10-10 13:10:51 -0700
committerLinus Torvalds <>2008-10-10 13:10:51 -0700
commitb922df7383749a1c0b7ea64c50fa839263d3816b (patch)
treedd72306ac173753649eb049d6d2734f4e2b95ff6 /lib
parentc54dcd8ec9f05c8951d1e622e90904aef95379f9 (diff)
parentcdbb92b31d3c465aa96bd09f2d42c39b87b32bee (diff)
Merge branch 'rcu-v28-for-linus' of git://
* 'rcu-v28-for-linus' of git:// (21 commits) rcu: RCU-based detection of stalled CPUs for Classic RCU, fix rcu: RCU-based detection of stalled CPUs for Classic RCU rcu: add rcu_read_lock_sched() / rcu_read_unlock_sched() rcu: fix sparse shadowed variable warning doc/RCU: fix pseudocode in rcuref.txt rcuclassic: fix compiler warning rcu: use irq-safe locks rcuclassic: fix compilation NG rcu: fix locking cleanup fallout rcu: remove redundant ACCESS_ONCE definition from rcupreempt.c rcu: fix classic RCU locking cleanup lockdep problem rcu: trace fix possible mem-leak rcu: just rename call_rcu_bh instead of making it a macro rcu: remove list_for_each_rcu() rcu: fixes to include/linux/rcupreempt.h rcu: classic RCU locking and memory-barrier cleanups rcu: prevent console flood when one CPU sees another AWOL via RCU rcu, debug: detect stalled grace periods, cleanups rcu, debug: detect stalled grace periods rcu classic: new algorithm for callbacks-processing(v2) ...
Diffstat (limited to 'lib')
1 files changed, 13 insertions, 0 deletions
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 7d7a31d0dde..ce697e0b319 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -597,6 +597,19 @@ config RCU_TORTURE_TEST_RUNNABLE
Say N here if you want the RCU torture tests to start only
after being manually enabled via /proc.
+ bool "Check for stalled CPUs delaying RCU grace periods"
+ depends on CLASSIC_RCU
+ default n
+ help
+ This option causes RCU to printk information on which
+ CPUs are delaying the current grace period, but only when
+ the grace period extends for excessive time periods.
+ Say Y if you want RCU to perform such checks.
+ Say N if you are unsure.
bool "Kprobes sanity tests"
depends on DEBUG_KERNEL