in the first buffer head instead of a driver global spin lock to
          improve scalability.
        - Minor fix to error handling and error message display in
-         fs/ntfs/aops.c::ntfs_prepare_nonresident_write(). 
+         fs/ntfs/aops.c::ntfs_prepare_nonresident_write().
+       - Change the mount options {u,f,d}mask to always parse the number as
+         an octal number to conform to how chmod(1) works, too.  Thanks to
+         Giuseppe Bilotta and Horst von Brand for pointing out the errors of
+         my ways.
 
 2.1.23 - Implement extension of resident files and make writing safe as well as
         many bug fixes, cleanups, and enhancements...
 
                if (*v)                                                 \
                        goto needs_val;                                 \
        }
+#define NTFS_GETOPT_OCTAL(option, variable)                            \
+       if (!strcmp(p, option)) {                                       \
+               if (!v || !*v)                                          \
+                       goto needs_arg;                                 \
+               variable = simple_strtoul(ov = v, &v, 8);               \
+               if (*v)                                                 \
+                       goto needs_val;                                 \
+       }
 #define NTFS_GETOPT_BOOL(option, variable)                             \
        if (!strcmp(p, option)) {                                       \
                BOOL val;                                               \
                        *v++ = 0;
                NTFS_GETOPT("uid", uid)
                else NTFS_GETOPT("gid", gid)
-               else NTFS_GETOPT("umask", fmask = dmask)
-               else NTFS_GETOPT("fmask", fmask)
-               else NTFS_GETOPT("dmask", dmask)
+               else NTFS_GETOPT_OCTAL("umask", fmask = dmask)
+               else NTFS_GETOPT_OCTAL("fmask", fmask)
+               else NTFS_GETOPT_OCTAL("dmask", dmask)
                else NTFS_GETOPT("mft_zone_multiplier", mft_zone_multiplier)
                else NTFS_GETOPT_WITH_DEFAULT("sloppy", sloppy, TRUE)
                else NTFS_GETOPT_BOOL("show_sys_files", show_sys_files)