summaryrefslogtreecommitdiff
path: root/init
diff options
context:
space:
mode:
authorIngo Molnar <mingo@kernel.org>2012-10-12 09:39:08 +0200
committerIngo Molnar <mingo@kernel.org>2012-10-12 09:39:08 +0200
commitc1f8d901d828da1df6d384780829952e7912aeba (patch)
tree8068ec66f9adfb2ce982b627b16226c3cff23036 /init
parentfa34da708cbe1e2d9a2ee7fc68ea8fccbf095d12 (diff)
parentd677124b1fc3b2706a13e92f1b329f1ac77e5f20 (diff)
Merge branch 'rcu/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/rcu
Pull RCU fixes from Paul E. McKenney. Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'init')
-rw-r--r--init/Kconfig12
1 files changed, 12 insertions, 0 deletions
diff --git a/init/Kconfig b/init/Kconfig
index c26b8a1d2b57..89093e178c27 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -451,6 +451,12 @@ config RCU_USER_QS
excluded from the global RCU state machine and thus doesn't
to keep the timer tick on for RCU.
+ Unless you want to hack and help the development of the full
+ tickless feature, you shouldn't enable this option. It adds
+ unnecessary overhead.
+
+ If unsure say N
+
config RCU_USER_QS_FORCE
bool "Force userspace extended QS by default"
depends on RCU_USER_QS
@@ -459,6 +465,12 @@ config RCU_USER_QS_FORCE
test this feature that treats userspace as an extended quiescent
state until we have a real user like a full adaptive nohz option.
+ Unless you want to hack and help the development of the full
+ tickless feature, you shouldn't enable this option. It adds
+ unnecessary overhead.
+
+ If unsure say N
+
config RCU_FANOUT
int "Tree-based hierarchical RCU fanout value"
range 2 64 if 64BIT