diff --git a/fs/ext4/Makefile b/fs/ext4/Makefile
index a6acb96ebeb9b004324632cb867412850f75938d..ae6e7e502ac9c0d5585370ba0c051410ab766ad8 100644
--- a/fs/ext4/Makefile
+++ b/fs/ext4/Makefile
@@ -5,7 +5,8 @@
 obj-$(CONFIG_EXT4DEV_FS) += ext4dev.o
 
 ext4dev-y	:= balloc.o bitmap.o dir.o file.o fsync.o ialloc.o inode.o \
-	   ioctl.o namei.o super.o symlink.o hash.o resize.o extents.o
+		   ioctl.o namei.o super.o symlink.o hash.o resize.o extents.o \
+		   ext4_jbd2.o
 
 ext4dev-$(CONFIG_EXT4DEV_FS_XATTR)	+= xattr.o xattr_user.o xattr_trusted.o
 ext4dev-$(CONFIG_EXT4DEV_FS_POSIX_ACL)	+= acl.o
diff --git a/fs/ext4/ext4_jbd2.c b/fs/ext4/ext4_jbd2.c
new file mode 100644
index 0000000000000000000000000000000000000000..d6afe4e273403147c091cdc7d3807b90d6f6083e
--- /dev/null
+++ b/fs/ext4/ext4_jbd2.c
@@ -0,0 +1,59 @@
+/*
+ * Interface between ext4 and JBD
+ */
+
+#include <linux/ext4_jbd2.h>
+
+int __ext4_journal_get_undo_access(const char *where, handle_t *handle,
+				struct buffer_head *bh)
+{
+	int err = jbd2_journal_get_undo_access(handle, bh);
+	if (err)
+		ext4_journal_abort_handle(where, __FUNCTION__, bh, handle,err);
+	return err;
+}
+
+int __ext4_journal_get_write_access(const char *where, handle_t *handle,
+				struct buffer_head *bh)
+{
+	int err = jbd2_journal_get_write_access(handle, bh);
+	if (err)
+		ext4_journal_abort_handle(where, __FUNCTION__, bh, handle,err);
+	return err;
+}
+
+int __ext4_journal_forget(const char *where, handle_t *handle,
+				struct buffer_head *bh)
+{
+	int err = jbd2_journal_forget(handle, bh);
+	if (err)
+		ext4_journal_abort_handle(where, __FUNCTION__, bh, handle,err);
+	return err;
+}
+
+int __ext4_journal_revoke(const char *where, handle_t *handle,
+				ext4_fsblk_t blocknr, struct buffer_head *bh)
+{
+	int err = jbd2_journal_revoke(handle, blocknr, bh);
+	if (err)
+		ext4_journal_abort_handle(where, __FUNCTION__, bh, handle,err);
+	return err;
+}
+
+int __ext4_journal_get_create_access(const char *where,
+				handle_t *handle, struct buffer_head *bh)
+{
+	int err = jbd2_journal_get_create_access(handle, bh);
+	if (err)
+		ext4_journal_abort_handle(where, __FUNCTION__, bh, handle,err);
+	return err;
+}
+
+int __ext4_journal_dirty_metadata(const char *where,
+				handle_t *handle, struct buffer_head *bh)
+{
+	int err = jbd2_journal_dirty_metadata(handle, bh);
+	if (err)
+		ext4_journal_abort_handle(where, __FUNCTION__, bh, handle,err);
+	return err;
+}
diff --git a/include/linux/ext4_jbd2.h b/include/linux/ext4_jbd2.h
index 72dd631912e4aaee12ed65e6fb343bb7dfb5f4e0..d716e6392cf6e7e5d6215da354b20a1c96e1d495 100644
--- a/include/linux/ext4_jbd2.h
+++ b/include/linux/ext4_jbd2.h
@@ -114,74 +114,32 @@ int ext4_mark_inode_dirty(handle_t *handle, struct inode *inode);
  * been done yet.
  */
 
-void ext4_journal_abort_handle(const char *caller, const char *err_fn,
-		struct buffer_head *bh, handle_t *handle, int err);
-
-static inline int
-__ext4_journal_get_undo_access(const char *where, handle_t *handle,
-				struct buffer_head *bh)
+static inline void ext4_journal_release_buffer(handle_t *handle,
+						struct buffer_head *bh)
 {
-	int err = jbd2_journal_get_undo_access(handle, bh);
-	if (err)
-		ext4_journal_abort_handle(where, __FUNCTION__, bh, handle,err);
-	return err;
+	jbd2_journal_release_buffer(handle, bh);
 }
 
-static inline int
-__ext4_journal_get_write_access(const char *where, handle_t *handle,
-				struct buffer_head *bh)
-{
-	int err = jbd2_journal_get_write_access(handle, bh);
-	if (err)
-		ext4_journal_abort_handle(where, __FUNCTION__, bh, handle,err);
-	return err;
-}
+void ext4_journal_abort_handle(const char *caller, const char *err_fn,
+		struct buffer_head *bh, handle_t *handle, int err);
 
-static inline void
-ext4_journal_release_buffer(handle_t *handle, struct buffer_head *bh)
-{
-	jbd2_journal_release_buffer(handle, bh);
-}
+int __ext4_journal_get_undo_access(const char *where, handle_t *handle,
+				struct buffer_head *bh);
 
-static inline int
-__ext4_journal_forget(const char *where, handle_t *handle, struct buffer_head *bh)
-{
-	int err = jbd2_journal_forget(handle, bh);
-	if (err)
-		ext4_journal_abort_handle(where, __FUNCTION__, bh, handle,err);
-	return err;
-}
+int __ext4_journal_get_write_access(const char *where, handle_t *handle,
+				struct buffer_head *bh);
 
-static inline int
-__ext4_journal_revoke(const char *where, handle_t *handle,
-		      ext4_fsblk_t blocknr, struct buffer_head *bh)
-{
-	int err = jbd2_journal_revoke(handle, blocknr, bh);
-	if (err)
-		ext4_journal_abort_handle(where, __FUNCTION__, bh, handle,err);
-	return err;
-}
+int __ext4_journal_forget(const char *where, handle_t *handle,
+				struct buffer_head *bh);
 
-static inline int
-__ext4_journal_get_create_access(const char *where,
-				 handle_t *handle, struct buffer_head *bh)
-{
-	int err = jbd2_journal_get_create_access(handle, bh);
-	if (err)
-		ext4_journal_abort_handle(where, __FUNCTION__, bh, handle,err);
-	return err;
-}
+int __ext4_journal_revoke(const char *where, handle_t *handle,
+				ext4_fsblk_t blocknr, struct buffer_head *bh);
 
-static inline int
-__ext4_journal_dirty_metadata(const char *where,
-			      handle_t *handle, struct buffer_head *bh)
-{
-	int err = jbd2_journal_dirty_metadata(handle, bh);
-	if (err)
-		ext4_journal_abort_handle(where, __FUNCTION__, bh, handle,err);
-	return err;
-}
+int __ext4_journal_get_create_access(const char *where,
+				handle_t *handle, struct buffer_head *bh);
 
+int __ext4_journal_dirty_metadata(const char *where,
+				handle_t *handle, struct buffer_head *bh);
 
 #define ext4_journal_get_undo_access(handle, bh) \
 	__ext4_journal_get_undo_access(__FUNCTION__, (handle), (bh))