blkio: Some debugging aids for CFQ

[safe/jmp/linux-2.6] / block / Kconfig

diff --git a/block/Kconfig b/block/Kconfig
index 6ba1a8e..e20fbde 100644 (file)
--- a/block/Kconfig
+++ b/block/Kconfig
@@ -90,6 +90,15 @@ config BLK_CGROUP
        control disk bandwidth allocation (proportional time slice allocation)
        to such task groups.
 
+config DEBUG_BLK_CGROUP
+       bool
+       depends on BLK_CGROUP
+       default n
+       ---help---
+       Enable some debugging help. Currently it stores the cgroup path
+       in the blk group which can be used by cfq for tracing various
+       group related activity.
+
 endif # BLOCK
 
 config BLOCK_COMPAT