backfs_headers := $(wildcard @LINUX@/fs/@BACKFS@/*.h)
linux_headers := $(wildcard @LINUX@/include/linux/@BACKFS@*.h)
+trace_headers := $(wildcard @LINUX@/include/trace/events/@BACKFS@*.h)
backfs_sources := $(filter-out %.mod.c,$(wildcard @LINUX@/fs/@BACKFS@/*.c))