cgroup: Make !percpu threadgroup_rwsem operations optional

[sfrench/cifs-2.6.git] / init / Kconfig

diff --git a/init/Kconfig b/init/Kconfig
index c984afc489dead0db3d4820b708d90f73b161553..c93b10b3de3f28e0fd29abc8524ca2869e89e9da 100644 (file)
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -936,6 +936,16 @@ if CGROUPS
 config PAGE_COUNTER
        bool
 
+config CGROUP_FAVOR_DYNMODS
+        bool "Favor dynamic modification latency reduction by default"
+        help
+          This option enables the "favordynmods" mount option by default
+          which reduces the latencies of dynamic cgroup modifications such
+          as task migrations and controller on/offs at the cost of making
+          hot path operations such as forks and exits more expensive.
+
+          Say N if unsure.
+
 config MEMCG
        bool "Memory controller"
        select PAGE_COUNTER