diff --git a/fs/gfs2/dir.h b/fs/gfs2/dir.h
index 5b01497..8fd4dc0 100644
--- a/fs/gfs2/dir.h
+++ b/fs/gfs2/dir.h
@@ -27,25 +27,34 @@
 			      uint64_t offset,
 			      struct gfs2_inum *inum, unsigned int type);
 
-int gfs2_filecmp(struct qstr *file1, char *file2, int len_of_file2);
-int gfs2_dirent_alloc(struct gfs2_inode *dip, struct buffer_head *bh,
-		     int name_len, struct gfs2_dirent **dent_out);
-
-int gfs2_dir_search(struct gfs2_inode *dip, struct qstr *filename,
-		   struct gfs2_inum *inum, unsigned int *type);
-int gfs2_dir_add(struct gfs2_inode *dip, struct qstr *filename,
-		struct gfs2_inum *inum, unsigned int type);
-int gfs2_dir_del(struct gfs2_inode *dip, struct qstr *filename);
+int gfs2_dir_search(struct inode *dir, const struct qstr *filename,
+		    struct gfs2_inum *inum, unsigned int *type);
+int gfs2_dir_add(struct inode *inode, const struct qstr *filename,
+		 const struct gfs2_inum *inum, unsigned int type);
+int gfs2_dir_del(struct gfs2_inode *dip, const struct qstr *filename);
 int gfs2_dir_read(struct gfs2_inode *dip, uint64_t * offset, void *opaque,
-		 gfs2_filldir_t filldir);
-int gfs2_dir_mvino(struct gfs2_inode *dip, struct qstr *filename,
-		  struct gfs2_inum *new_inum, unsigned int new_type);
+		  gfs2_filldir_t filldir);
+int gfs2_dir_mvino(struct gfs2_inode *dip, const struct qstr *filename,
+		   struct gfs2_inum *new_inum, unsigned int new_type);
 
 int gfs2_dir_exhash_dealloc(struct gfs2_inode *dip);
 
-int gfs2_diradd_alloc_required(struct gfs2_inode *dip, struct qstr *filename,
-			      int *alloc_required);
+int gfs2_diradd_alloc_required(struct inode *dir,
+			       const struct qstr *filename);
 int gfs2_dir_get_buffer(struct gfs2_inode *ip, uint64_t block, int new,
-                         struct buffer_head **bhp);
+                        struct buffer_head **bhp);
+
+/* N.B. This probably ought to take inum & type as args as well */
+static inline void gfs2_qstr2dirent(const struct qstr *name, u16 reclen, struct gfs2_dirent *dent)
+{
+	dent->de_inum.no_addr = cpu_to_be64(0);
+	dent->de_inum.no_formal_ino = cpu_to_be64(0);
+	dent->de_hash = cpu_to_be32(name->hash);
+	dent->de_rec_len = cpu_to_be16(reclen);
+	dent->de_name_len = cpu_to_be16(name->len);
+	dent->de_type = cpu_to_be16(0);
+	memset(dent->__pad, 0, sizeof(dent->__pad));
+	memcpy((char*)(dent+1), name->name, name->len);
+}
 
 #endif /* __DIR_DOT_H__ */