diff --git a/Ext4Fsd/ext3/htree.c b/Ext4Fsd/ext3/htree.c
index a2129a9..7b08b78 100644
--- a/Ext4Fsd/ext3/htree.c
+++ b/Ext4Fsd/ext3/htree.c
@@ -1,7 +1,7 @@
 /*
  * COPYRIGHT:        See COPYRIGHT.TXT
  * PROJECT:          Ext2 File System Driver for WinNT/2K/XP
- * FILE:             lock.c
+ * FILE:             htree.c
  * PROGRAMMER:       Matt Wu <mattwu@163.com>
  * HOMEPAGE:         http://www.ext2fsd.com
  * UPDATE HISTORY:
@@ -763,72 +763,7 @@ static int call_filldir(struct file * filp, void * cookie,
     }
     return 0;
 }
-#if 0
-struct fake_dirent
-{
-    __le32 inode;
-    __le16 rec_len;
-    __u8 name_len;
-    __u8 file_type;
-};
 
-struct dx_countlimit
-{
-    __le16 limit;
-    __le16 count;
-};
-
-struct dx_entry
-{
-    __le32 hash;
-    __le32 block;
-};
-
-/*
- * dx_root_info is laid out so that if it should somehow get overlaid by a
- * dirent the two low bits of the hash version will be zero.  Therefore, the
- * hash version mod 4 should never be 0.  Sincerely, the paranoia department.
- */
-
-struct dx_root
-{
-    struct fake_dirent dot;
-    char dot_name[4];
-    struct fake_dirent dotdot;
-    char dotdot_name[4];
-    struct dx_root_info
-    {
-        __le32 reserved_zero;
-        __u8 hash_version;
-        __u8 info_length; /* 8 */
-        __u8 indirect_levels;
-        __u8 unused_flags;
-    }
-    info;
-    struct dx_entry	entries[0];
-};
-
-struct dx_node
-{
-    struct fake_dirent fake;
-    struct dx_entry	entries[0];
-};
-
-
-struct dx_frame
-{
-    struct buffer_head *bh;
-    struct dx_entry *entries;
-    struct dx_entry *at;
-};
-
-struct dx_map_entry
-{
-    __u32 hash;
-    __u16 offs;
-    __u16 size;
-};
-#endif
 /*
  * Future: use high four bits of block for coalesce-on-delete flags
  * Mask them off for now.
diff --git a/Ext4Fsd/fileinfo.c b/Ext4Fsd/fileinfo.c
index 996186b..e9cbe89 100644
--- a/Ext4Fsd/fileinfo.c
+++ b/Ext4Fsd/fileinfo.c
@@ -388,11 +388,6 @@ Ext2QueryFileInformation (IN PEXT2_IRP_CONTEXT IrpContext)
 
             Irp->IoStatus.Information = sizeof(FILE_ALL_INFORMATION) +
                                         Mcb->ShortName.Length - sizeof(WCHAR);
-#if 0
-            sizeof(FILE_ACCESS_INFORMATION) -
-            sizeof(FILE_MODE_INFORMATION) -
-            sizeof(FILE_ALIGNMENT_INFORMATION);
-#endif
 
             Status = STATUS_SUCCESS;
         }
diff --git a/Ext4Fsd/include/asm/page.h b/Ext4Fsd/include/asm/page.h
deleted file mode 100644
index e69de29..0000000
diff --git a/Ext4Fsd/include/asm/semaphore.h b/Ext4Fsd/include/asm/semaphore.h
deleted file mode 100644
index e69de29..0000000
diff --git a/Ext4Fsd/include/asm/uaccess.h b/Ext4Fsd/include/asm/uaccess.h
deleted file mode 100644
index e69de29..0000000
diff --git a/Ext4Fsd/jbd2/journal.c b/Ext4Fsd/jbd2/journal.c
index ad9b1ee..cc78dd0 100644
--- a/Ext4Fsd/jbd2/journal.c
+++ b/Ext4Fsd/jbd2/journal.c
@@ -46,7 +46,7 @@
 //#include <trace/events/jbd2.h>
 
 //#include <linux/uaccess.h>
-#include <asm/page.h>
+//#include <asm/page.h>
 #if 0
 #ifdef CONFIG_JBD2_DEBUG
 ushort jbd2_journal_enable_debug __read_mostly;
diff --git a/Ext4Fsd/memory.c b/Ext4Fsd/memory.c
index 5a820d8..81f8bd7 100644
--- a/Ext4Fsd/memory.c
+++ b/Ext4Fsd/memory.c
@@ -2628,16 +2628,6 @@ Ext2InitializeVcb( IN PEXT2_IRP_CONTEXT IrpContext,
             }
         }
 
-        /*
-         * Mount ext4 with 64-bit block numbers read-only while testing.
-         */
-#if 0
-        if (EXT3_HAS_INCOMPAT_FEATURE(&Vcb->sb, EXT4_FEATURE_INCOMPAT_64BIT)) {
-            printk(KERN_ERR "EXT3-fs: %s: Mounting ext4 with 64-bit block numbers read-only.\n",
-                   Vcb->sb.s_id);
-            SetLongFlag(Vcb->Flags, VCB_READ_ONLY);
-        }
-#endif
         has_huge_files = EXT3_HAS_RO_COMPAT_FEATURE(&Vcb->sb, EXT4_FEATURE_RO_COMPAT_HUGE_FILE);
 
         Vcb->sb.s_maxbytes = ext3_max_size(BLOCK_BITS, has_huge_files);
diff --git a/README.md b/README.md
index db9a7b4..b266bfc 100644
--- a/README.md
+++ b/README.md
@@ -7,10 +7,10 @@ About
     and Visual Studio 2019. This is work in progress. If you need a stable driver you should get the
     latest official release from http://www.ext2fsd.com. If you want to try this branch you should
     still install the oficial release and then copy this driver over the old in \windows\system32\drivers.
-    The current status of the development is that all metadata checksums is implemented. To make a
-    filesystem to test this run mkfs.ext4 with the options -O "metadata_csum,^64bit".
+    The current status of the development is that all metadata checksums is implemented and jbd2 is
+    ported to support 64-bit blocknumbers.
     This work is dedicated to my mother Berit Ingegerd Branten.
-    Bo Branten.
+    Bo Branten <bosse@acc.umu.se>
 
 
 Introduction