diff -rupN 2.6.27.21_2/fs/ext4/ext4.h 2.6.27.21_3/fs/ext4/ext4.h
--- 2.6.27.21_2/fs/ext4/ext4.h	2009-07-17 12:19:59.000000000 +0530
+++ 2.6.27.21_3/fs/ext4/ext4.h	2009-07-17 12:38:59.000000000 +0530
@@ -1181,6 +1181,9 @@ extern int ext4_orphan_add(handle_t *, s
 #define ll_ext4_find_entry(inode, dentry, res_dir) ext4_find_entry(inode, &(dentry)->d_name, res_dir)
 extern int ext4_add_dot_dotdot(handle_t *handle, struct inode *dir,
 			       struct inode *inode);
+extern struct buffer_head *ext4_append(handle_t *handle,
+				       struct inode *inode,
+				       ext4_lblk_t *block, int *err);
 
 /* resize.c */
 extern int ext4_group_add(struct super_block *sb,
diff -rupN 2.6.27.21_2/fs/ext4/hash.c 2.6.27.21_3/fs/ext4/hash.c
--- 2.6.27.21_2/fs/ext4/hash.c	2009-07-17 12:12:56.000000000 +0530
+++ 2.6.27.21_3/fs/ext4/hash.c	2009-07-17 12:40:22.000000000 +0530
@@ -9,6 +9,7 @@
  * License.
  */
 
+#include <linux/module.h>
 #include <linux/fs.h>
 #include <linux/jbd2.h>
 #include <linux/cryptohash.h>
@@ -206,3 +207,4 @@ int ext4fs_dirhash(const char *name, int
 	hinfo->minor_hash = minor_hash;
 	return 0;
 }
+EXPORT_SYMBOL(ext4fs_dirhash);
diff -rupN 2.6.27.21_2/fs/ext4/namei.c 2.6.27.21_3/fs/ext4/namei.c
--- 2.6.27.21_2/fs/ext4/namei.c	2009-07-17 12:23:51.000000000 +0530
+++ 2.6.27.21_3/fs/ext4/namei.c	2009-07-17 12:37:59.000000000 +0530
@@ -51,9 +51,9 @@
 #define NAMEI_RA_SIZE	     (NAMEI_RA_CHUNKS * NAMEI_RA_BLOCKS)
 #define NAMEI_RA_INDEX(c,b)  (((c) * NAMEI_RA_BLOCKS) + (b))
 
-static struct buffer_head *ext4_append(handle_t *handle,
-					struct inode *inode,
-					ext4_lblk_t *block, int *err)
+struct buffer_head *ext4_append(handle_t *handle,
+				struct inode *inode,
+				ext4_lblk_t *block, int *err)
 {
 	struct buffer_head *bh;
 	struct ext4_inode_info *ei = EXT4_I(inode);
@@ -72,6 +72,7 @@ static struct buffer_head *ext4_append(h
 	up(&ei->i_append_sem);
 	return bh;
 }
+EXPORT_SYMBOL(ext4_append);
 
 #ifndef assert
 #define assert(test) J_ASSERT(test)
diff -rupN 2.6.27.21_2/fs/ext4/super.c 2.6.27.21_3/fs/ext4/super.c
--- 2.6.27.21_2/fs/ext4/super.c	2009-07-17 12:12:57.000000000 +0530
+++ 2.6.27.21_3/fs/ext4/super.c	2009-07-17 12:40:52.000000000 +0530
@@ -377,6 +377,7 @@ void __ext4_std_error(struct super_block
 
 	ext4_handle_error(sb);
 }
+EXPORT_SYMBOL(__ext4_std_error);
 
 /*
  * ext4_abort is a much stronger failure handler than ext4_error.  The