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-rw-r--r--block/Kconfig13
1 files changed, 13 insertions, 0 deletions
diff --git a/block/Kconfig b/block/Kconfig
index 9be0b56eaee1..6ba1a8e3388b 100644
--- a/block/Kconfig
+++ b/block/Kconfig
@@ -77,6 +77,19 @@ config BLK_DEV_INTEGRITY
T10/SCSI Data Integrity Field or the T13/ATA External Path
Protection. If in doubt, say N.
+config BLK_CGROUP
+ bool
+ depends on CGROUPS
+ default n
+ ---help---
+ Generic block IO controller cgroup interface. This is the common
+ cgroup interface which should be used by various IO controlling
+ policies.
+
+ Currently, CFQ IO scheduler uses it to recognize task groups and
+ control disk bandwidth allocation (proportional time slice allocation)
+ to such task groups.
+
endif # BLOCK
config BLOCK_COMPAT