add separate make targets for block dev

Author: bygu4

Makefile

@@ -80,6 +80,33 @@ lib_remove:
 lib_reinsert:
 	$(MAKE) lib_remove && $(MAKE) lib_insert
 
+# ---------------- Block dev only ----------------
+
+.PHONY: bdev
+bdev:
+	$(MAKE) -j -C $(KERNEL_SOURCES_DIR) M=$(BDEV) MO=$(OUTPUT_BDEV) modules
+
+.PHONY: bdev_install
+bdev_install:
+	$(MAKE) -j -C $(KERNEL_SOURCES_DIR) M=$(BDEV) MO=$(OUTPUT_BDEV) modules_install
+
+.PHONY: bdev_clean
+bdev_clean:
+	$(MAKE) -j -C $(KERNEL_SOURCES_DIR) M=$(BDEV) MO=$(OUTPUT_BDEV) clean
+	rm -rf $(OUTPUT_BDEV)
+
+.PHONY: bdev_insert
+bdev_insert:
+	insmod $(BDEV_OBJ)
+
+.PHONY: bdev_remove
+bdev_remove:
+	rmmod $(BDEV_NAME) || true
+
+.PHONY: bdev_reinsert
+bdev_reinsert:
+	$(MAKE) bdev_remove && $(MAKE) bdev_insert
+
 # ---------------- Testing ----------------
 
 .PHONY: test

lz4e/Kbuild lz4e/Makefilelz4e/Kbuild renamed to lz4e/Makefile

@@ -0,0 +1,23 @@
+include $(PWD)/flags.mk
+
+ccflags-y += -I $(PWD)/lz4e
+
+SYMBOLS_ALL := $(PWD)/build/Module.symvers
+SYMBOLS_LIB := $(PWD)/build/lz4e/Module.symvers
+
+ifneq ("$(wildcard $(SYMBOLS_ALL))", "")
+	KBUILD_EXTRA_SYMBOLS += $(SYMBOLS_ALL)
+else
+	KBUILD_EXTRA_SYMBOLS += $(SYMBOLS_LIB)
+endif
+
+$(info KBUILD_EXTRA_SYMBOLS = $(KBUILD_EXTRA_SYMBOLS))
+
+lz4e_bdev-y := lz4e_module.o \
+	lz4e_dev.o \
+	lz4e_under_dev.o \
+	lz4e_req.o \
+	lz4e_chunk.o \
+	lz4e_stats.o
+
+obj-m := lz4e_bdev.o

lz4e_bdev/Kbuild

@@ -13,7 +13,7 @@
 
 #include "include/lz4e_chunk.h"
 
-#include "../lz4e/include/lz4e.h"
+#include "include/lz4e.h"
 #include "include/lz4e_static.h"
 
 void lz4e_buf_copy_from_bio(struct lz4e_buffer *dst, struct bio *src)

lz4e_bdev/Makefile

@@ -17,7 +17,7 @@
 
 #include "include/lz4e_req.h"
 
-#include "../lz4e/include/lz4e.h"
+#include "include/lz4e.h"
 #include "include/lz4e_chunk.h"
 #include "include/lz4e_dev.h"
 #include "include/lz4e_static.h"