diff --git a/[refs] b/[refs]
index 767e539c8b29..4b19eaad095d 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 89a7689e5c039090d99cbdc3625252c3dee50f7f
+refs/heads/master: 09540e691d7f57684b296b60241b2ff357fae3ab
diff --git a/trunk/block/Kconfig b/trunk/block/Kconfig
index 43ca070dc0f8..5536839886ff 100644
--- a/trunk/block/Kconfig
+++ b/trunk/block/Kconfig
@@ -13,6 +13,7 @@ config LBD
 
 config BLK_DEV_IO_TRACE
 	bool "Support for tracing block io actions"
+	depends on SYSFS
 	select RELAY
 	select DEBUG_FS
 	help