tracing/blktrace: move the tracing file to kernel/trace, fix

Impact: build fix

The BLK_DEV_IO_TRACE entry used to be in block/Kconfig - which
file itself was dependent on CONFIG_BLOCK. But now the entry is
in kernel/trace/Kconfig - which is present even on !CONFIG_BLOCK.

So add a 'depends on BLOCK' to BLK_DEV_IO_TRACE.

Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 1 insertions, 0 deletions

diff --git a/kernel/trace/Kconfig b/kernel/trace/Kconfig
index 4fee43c01942..3a331289457a 100644
--- a/kernel/trace/Kconfig
+++ b/kernel/trace/Kconfig
@@ -305,6 +305,7 @@ config WORKQUEUE_TRACER
 config BLK_DEV_IO_TRACE
         bool "Support for tracing block io actions"
         depends on SYSFS
+        depends on BLOCK
         select RELAY
         select DEBUG_FS
         select TRACEPOINTS