From: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Date: Fri, 4 Nov 2011 20:41:50 +0000 (-0400)
Subject: Disable block layer tracing support for kernels < 2.6.38
X-Git-Tag: v2.0-pre11~14
X-Git-Url: https://git.lttng.org./?a=commitdiff_plain;h=2d3767da8b85d8bc7ab67bd2da6a1f34c34e070b;p=lttng-modules.git

Disable block layer tracing support for kernels < 2.6.38

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
---

diff --git a/probes/Makefile b/probes/Makefile
index 794a0699..2b61ce5f 100644
--- a/probes/Makefile
+++ b/probes/Makefile
@@ -19,7 +19,10 @@ endif
 
 ifneq ($(CONFIG_BLOCK),)
 ifneq ($(CONFIG_EVENT_TRACING),)	# need blk_cmd_buf_len
-obj-m += lttng-probe-block.o
+obj-m +=  $(shell \
+	if [ $(VERSION) -ge 3 \
+		-o \( $(VERSION) -eq 2 -a $(PATCHLEVEL) -ge 6 -a $(SUBLEVEL) -ge 38 \) ] ; then \
+		echo "lttng-probe-block.o" ; fi;)
 endif
 endif