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-rw-r--r--block/Kconfig12
1 files changed, 12 insertions, 0 deletions
diff --git a/block/Kconfig b/block/Kconfig
index dfe7bc770fc9..1f2469a0123c 100644
--- a/block/Kconfig
+++ b/block/Kconfig
@@ -149,6 +149,18 @@ config BLK_WBT
dynamically on an algorithm loosely based on CoDel, factoring in
the realtime performance of the disk.
+config BLK_CGROUP_IOLATENCY
+ bool "Enable support for latency based cgroup IO protection"
+ depends on BLK_CGROUP=y
+ default n
+ ---help---
+ Enabling this option enables the .latency interface for IO throttling.
+ The IO controller will attempt to maintain average IO latencies below
+ the configured latency target, throttling anybody with a higher latency
+ target than the victimized group.
+
+ Note, this is an experimental interface and could be changed someday.
+
config BLK_WBT_SQ
bool "Single queue writeback throttling"
default n