patch-2.4.10 linux/Documentation/filesystems/ntfs.txt

• Lines: 134
• Date: Tue Sep 11 17:02:46 2001
• Orig file: v2.4.9/linux/Documentation/filesystems/ntfs.txt
• Orig date: Mon Aug 27 12:41:37 2001

diff -u --recursive --new-file v2.4.9/linux/Documentation/filesystems/ntfs.txt linux/Documentation/filesystems/ntfs.txt
@@ -64,6 +64,25 @@
 			Be careful not to write anything to them or you could
 			crash the kernel and/or corrupt your file system!
 
+mft_zone_multiplier=	Set the MFT zone multiplier for the volume (this
+			setting is not persistent across mounts and can be
+			changed from mount to mount but cannot be changed on
+			remount). Values of 1 to 4 are allowed, 1 being the
+			default. The MFT zone multiplier determines how much
+			space is reserved for the MFT on the volume. If all
+			other space is used up, then the MFT zone will be
+			shrunk dynamically, so this has no impact on the
+			amount of free space. However, it can have an impact
+			on performance by affecting fragmentation of the MFT.
+			In general use the default. If you have a lot of small
+			files then use a higher value. The values have the
+			following meaning:
+			      Value	     MFT zone size (% of volume size)
+				1		12.5%
+				2		25%
+				3		37.5%
+				4		50%
+
 Known bugs and (mis-)features
 =============================
 
@@ -71,10 +90,6 @@
   use it, get the Linux-NTFS tools and use the ntfsfix utility after
   dismounting a partition you wrote to.
 
-- Use the show_sys_files mount option which should make things work generally
-  better. (It results in both the short and long file names being shown as well
-  as the sytem files.)
-
 - Writing of extension records is not supported properly.
 
 Please send bug reports/comments/feed back/abuse to the Linux-NTFS development
@@ -82,6 +97,96 @@
 
 ChangeLog
 =========
+
+NTFS 1.1.19:
+	- Fixed ntfs_getdir_unsorted(), ntfs_readdir() and ntfs_printcb() to
+	  cope with arbitrary cluster sizes. Very important for Win2k+. Also,
+	  make them detect directories which are too large and truncate the
+	  enumeration pretending end of directory was reached. Detect more
+	  error conditions and overflows. All this fixes the problem where the
+	  driver could end up in an infinite loop under certain circumstances.
+	- Fixed potential memory leaks in Unicode conversion functions and
+	  setup correct NULL return values.
+
+NTFS 1.1.18:
+
+	- Enhanced & bug fixed cluster deallocation (race fixes, etc.)
+	- Complete rewrite of cluster allocation, now race free.
+	- Fixed several bugs in the attribute modification codepaths.
+	- Hopefully fixed bug where the first sectors of some people's
+	  partitions would be overwritten by the mft. And in general fixed up
+	  mft extension code a bit (still incomplete though).
+	- Introduce splice_runlist() to allow generic splicing of two run
+	  lists into one.
+	- MFT zone is now implemented. [Stage 2 of 3; only lack dynamic
+	  growing of mft zone but that is AFAIK not even done by Windows, and
+	  the overhead would be so large that it is probably not worth doing
+	  at all, so Stage 3 might never happen...]
+	- Complete rewrite of $MFT extension and ntfs inode allocation code.
+	- Made the NTFS driver initialization string show the compile options
+	  used (i.e. whether read-only or read-write, whether a module, and
+	  whether with debug support).
+	- Modify ntfs_fill_mft_header() to set all fields and to accept more
+	  arguments.
+	- Get rid of superfluous add_mft_header().
+	- Get rid of some unused code.
+	- Fixed several bugs in and generally cleaned up ntfs_readdir,
+	  ntfs_getdir_unsorted(), and ntfs_printcb. Now they spew out huge
+	  amounts of debug output if debugging is enabled. This will be
+	  removed once I know that this works for everyone.
+	- ntfs_readdir now shows hidden files. The only files that are now
+	  hidden are the first 16 inodes (i.e. the hard coded system files),
+	  which is consistent with Windows NT4. Using the show_sys_files mount
+	  option, these files are then shown, too.
+	- Fixed the displaying of the "." and ".." directories. We still cannot
+	  cope with more than 65536 files in a directory index block which is
+	  not a problem and we now cannot cope with more than 32766 directory
+	  index blocks which should not be a problem unless you have a
+	  directory with an insanely large number of files in it. The exact
+	  number depends on the length of the file names of the directory
+	  entries and on the size of the dircetory index blocks.
+	- Fixed all problems with the last file in a directory (e.g. the last
+	  file should no longer disappear and tab completion should work). If
+	  there are still disappearing files or any other problems with the
+	  last file in a directory, please report them! Thanks.
+	- Rewrote ntfs_extend_attr() to use the new cluster allocator and the
+	  freshly introduced splice_runlists() function. This simplified
+	  ntfs_extend_attr() a lot which in turn seems to have removed one or
+	  more bugs from it.
+	- Probably other things I have forgotten... (-;
+	- Removed dollar signs from the names in the system file enumeration.
+	  Apparently gcc doesn't support dollar signs on PPC architecture.
+	  (Andrzej Krzysztofowicz)
+
+NTFS 1.1.17:
+
+	- Fixed system file handling. No longer need to use show_sys_files
+	  option for driver to work fine. System files are now always treated
+	  the same, but without the option, they are made invisible to
+	  directory listings. As a result system files can once again be opened
+	  even without the show_sys_files option. This is important for the
+	  statfs system call to work properly, for example.
+	- Implemented MFT zone including mount parameter to tune it (just like
+	  in Windows via the registry, only we make it per mount rather than
+	  global for the whole driver, so we are better but we have no way of
+	  storing the value as we don't have a registry so either specify on
+	  each mount or put it in /etc/fstab). [Stage 1 of 3, mount parameter
+	  handling.]
+	- Fixed fixup functions to handle corruption cases and to return error
+	  codes to the caller.
+	- Made fixup functions apply hotfixes where sensible. [Stage 1 of 2+,
+	  in memory only.]
+	- Fixed ommission of "NTFS: " string in ntfs_error() output.
+	- Fixed stupid if statement bug in unistr.c. Thanks to Yann E. Morin
+	  for spotting it. 
+	- Get rid of all uses of max and min macros. This actually allowed for
+	  optimizing the code in several places so it was a Good Thing(TM).
+	- Make ntfs use generic_file_open to enforce the O_LARGEFILE flag.
+	- Detect encrypted files and refuse to access them (return EACCES
+	  error code to user space).
+	- Fix handling of encrypted & compressed files so that an encrypted
+	  file no longer is considered to be compressed (this was causing
+	  kernel segmentation faults).
 
 NTFS 1.1.16: