X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=block%2FKconfig;h=96783645092dc106cd4f4b300958aeae5b684e2a;hb=abcb6c9fd13fc2ad7757b818924dc8109a0e3775;hp=377f6dd20e1799afe57f9881e3cd8ac222697f8e;hpb=25da0974601fc8096461f3d3f7ca3aab8e79adfb;p=deliverable%2Flinux.git

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