1 files changed, 12 insertions, 0 deletions

diff --git a/block/Kconfig b/block/Kconfig
index 377f6dd20e17..96783645092d 100644
--- a/block/Kconfig
+++ b/block/Kconfig
@@ -11,4 +11,16 @@ config LBD
           your machine, or if you want to have a raid or loopback device
           bigger than 2TB.  Otherwise say N.
 
+config BLK_DEV_IO_TRACE
+        bool "Support for tracing block io actions"
+        select RELAY
+        select DEBUG_FS
+        help
+          Say Y here, if you want to be able to trace the block layer actions
+          on a given queue. Tracing allows you to see any traffic happening
+          on a block device queue. For more information (and the user space
+          support tools needed), fetch the blktrace app from:
+
+          git://brick.kernel.dk/data/git/blktrace.git
+
 source block/Kconfig.iosched