diff --git a/[refs] b/[refs]
index 03d1be727d23..cb84cfcc9e7d 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 92fee66d49b812ea57eae53c5baaf8942ac9af06
+refs/heads/master: 8578f0f1fda41f8429a1037022b720275102ca65
diff --git a/trunk/fs/btrfs/Makefile b/trunk/fs/btrfs/Makefile
index 5af2426116d3..a4e2df66bdbb 100644
--- a/trunk/fs/btrfs/Makefile
+++ b/trunk/fs/btrfs/Makefile
@@ -18,5 +18,5 @@ KERNELDIR := /lib/modules/`uname -r`/build
 all::
 	$(MAKE) -C $(KERNELDIR) M=`pwd` modules
 clean::
-	rm *.o btrfs.ko
+	$(MAKE) -C $(KERNELDIR) M=`pwd` clean
 endif