[2.6 patch] ext2: remove the ancient CHANGES file

From: Adrian Bunk (bunk_at_stusta.de)
Date: 10/31/05

  • Next message: Randy.Dunlap: "Re: [git patches] 2.6.x libata updates"
    Date:	Mon, 31 Oct 2005 01:15:22 +0100
    To: ext2-devel@lists.sourceforge.net
    
    

    This patch removes an ancient changelog file.

    Signed-off-by: Adrian Bunk <bunk@stusta.de>

    ---
     fs/ext2/CHANGES |  157 ------------------------------------------------
     1 file changed, 157 deletions(-)
    --- linux-2.6.14-rc5-mm1-full/fs/ext2/CHANGES	2005-08-29 01:41:01.000000000 +0200
    +++ /dev/null	2005-04-28 03:52:17.000000000 +0200
    @@ -1,157 +0,0 @@
    -Changes from version 0.5a to version 0.5b
    -=========================================
    -	- Now that we have sysctl(), the immutable flag cannot be changed when
    -	  the system is running at security level > 0.
    -	- Some cleanups in the code.
    -	- More consistency checks on directories.
    -	- The ext2.diff patch from Tom May <ftom@netcom.com> has been
    -	  integrated.  This patch replaces expensive "/" and "%" with
    -	  cheap ">>" and "&" where possible.
    -
    -Changes from version 0.5 to version 0.5a
    -========================================
    -	- Zero the partial block following the end of the file when a file
    -	  is truncated.
    -	- Dates updated in the copyright.
    -	- More checks when the filesystem is mounted: the count of blocks,
    -	  fragments, and inodes per group is checked against the block size.
    -	- The buffers used by the error routines are now static variables, to
    -	  avoid using space on the kernel stack, as requested by Linus.
    -	- Some cleanups in the error messages (some versions of syslog contain
    -	  a bug which truncates an error message if it contains '\n').
    -	- Check that no data can be written to a file past the 2GB limit.
    -	- The famous readdir() bug has been fixed by Stephen Tweedie.
    -	- Added a revision level in the superblock.
    -	- Full support for O_SYNC flag of the open system call.
    -	- New mount options: `resuid=#uid' and `resgid=#gid'.  `resuid' causes
    -	  ext2fs to consider user #uid like root for the reserved blocks.
    -	  `resgid' acts the same way with group #gid.  New fields in the
    -	  superblock contain default values for resuid and resgid and can
    -	  be modified by tune2fs.
    -	  Idea comes from Rene Cougnenc <cougnenc@renux.frmug.fr.net>.
    -	- New mount options: `bsddf' and `minixdf'.  `bsddf' causes ext2fs
    -	  to remove the blocks used for FS structures from the total block
    -	  count in statfs.  With `minixdf', ext2fs mimics Minix behavior
    -	  in statfs (i.e. it returns the total number of blocks on the
    -	  partition).  This is intended to make bde happy :-)
    -	- New file attributes:
    -	  - Immutable files cannot be modified.  Data cannot be written to
    -	    these files.  They cannot be removed, renamed and new links cannot
    -	    be created.  Even root cannot modify the files.  He has to remove
    -	    the immutable attribute first.
    -	  - Append-only files: can only be written in append-mode when writing.
    -	    They cannot be removed, renamed and new links cannot be created.
    -	    Note: files may only be added to an append-only directory.
    -	  - No-dump files: the attribute is not used by the kernel.  My port
    -	    of dump uses it to avoid backing up files which are not important.
    -	- New check in ext2_check_dir_entry: the inode number is checked.
    -	- Support for big file systems: the copy of the FS descriptor is now
    -	  dynamically allocated (previous versions used a fixed size array).
    -	  This allows to mount 2GB+ FS.
    -	- Reorganization of the ext2_inode structure to allow other operating
    -	  systems to create specific fields if they use ext2fs as their native
    -	  file system.  Currently, ext2fs is only implemented in Linux but
    -	  will soon be part of Gnu Hurd and of Masix.
    -
    -Changes from version 0.4b to version 0.5
    -========================================
    -	- New superblock fields: s_lastcheck and s_checkinterval added
    -	  by Uwe Ohse <uwe@tirka.gun.de> to implement timedependent checks
    -	  of the file system
    -	- Real random numbers for secure rm added by Pierre del Perugia
    -	  <delperug@gla.ecoledoc.ibp.fr>
    -	- The mount warnings related to the state of a fs are not printed
    -	  if the fs is mounted read-only, idea by Nick Holloway
    -	  <alfie@dcs.warwick.ac.uk>
    -
    -Changes from version 0.4a to version 0.4b
    -=========================================
    -	- Copyrights changed to include the name of my laboratory.
    -	- Clean up of balloc.c and ialloc.c.
    -	- More consistency checks.
    -	- Block preallocation added by Stephen Tweedie.
    -	- Direct reads of directories disallowed.
    -	- Readahead implemented in readdir by Stephen Tweedie.
    -	- Bugs in block and inodes allocation fixed.
    -	- Readahead implemented in ext2_find_entry by Chip Salzenberg.
    -	- New mount options:
    -	  `check=none|normal|strict'
    -	  `debug'
    -	  `errors=continue|remount-ro|panic'
    -	  `grpid', `bsdgroups'
    -	  `nocheck'
    -	  `nogrpid', `sysvgroups'
    -	- truncate() now tries to deallocate contiguous blocks in a single call
    -	  to ext2_free_blocks().
    -	- lots of cosmetic changes.
    -
    -Changes from version 0.4 to version 0.4a
    -========================================
    -        - the `sync' option support is now complete.  Version 0.4 was not
    -          supporting it when truncating a file.  I have tested the synchronous
    -          writes and they work but they make the system very slow :-(  I have
    -          to work again on this to make it faster.
    -        - when detecting an error on a mounted filesystem, version 0.4 used
    -          to try to write a flag in the super block even if the filesystem had
    -          been mounted read-only.  This is fixed.
    -        - the `sb=#' option now causes the kernel code to use the filesystem
    -          descriptors located at block #+1.  Version 0.4 used the superblock
    -          backup located at block # but used the main copy of the descriptors.
    -        - a new file attribute `S' is supported.  This attribute causes
    -          synchronous writes but is applied to a file not to the entire file
    -          system (thanks to Michael Kraehe <kraehe@bakunin.north.de> for
    -          suggesting it).
    -        - the directory cache is inhibited by default.  The cache management
    -          code seems to be buggy and I have to look at it carefully before
    -          using it again.
    -        - deleting a file with the `s' attribute (secure deletion) causes its
    -          blocks to be overwritten with random values not with zeros (thanks to
    -          Michael A. Griffith <grif@cs.ucr.edu> for suggesting it).
    -        - lots of cosmetic changes have been made.
    -
    -Changes from version 0.3 to version 0.4
    -=======================================
    -        - Three new mount options are supported: `check', `sync' and `sb=#'.
    -          `check' tells the kernel code to make more consistency checks
    -          when the file system is mounted.  Currently, the kernel code checks
    -          that the blocks and inodes bitmaps are consistent with the free
    -          blocks and inodes counts.  More checks will be added in future
    -          releases.
    -          `sync' tells the kernel code to use synchronous writes when updating
    -          an inode, a bitmap, a directory entry or an indirect block.  This
    -          can make the file system much slower but can be a big win for files
    -          recovery in case of a crash (and we can now say to the BSD folks
    -          that Linux also supports synchronous updates :-).
    -          `sb=#' tells the kernel code to use an alternate super block instead
    -          of its master copy.  `#' is the number of the block (counted in
    -          1024 bytes blocks) which contains the alternate super block.
    -          An ext2 file system typically contains backups of the super block
    -          at blocks 8193, 16385, and so on.
    -        - I have change the meaning of the valid flag used by e2fsck.  it
    -          now contains the state of the file system.  If the kernel code
    -          detects an inconsistency while the file system is mounted, it flags
    -          it as erroneous and e2fsck will detect that on next run.
    -        - The super block now contains a mount counter.  This counter is
    -          incremented each time the file system is mounted read/write.   When
    -          this counter becomes bigger than a maximal mount counts (also stored
    -          in the super block), e2fsck checks the file system, even if it had
    -          been unmounted cleanly, and resets this counter to 0.
    -        - File attributes are now supported.  One can associate a set of
    -          attributes to a file.  Three attributes are defined:
    -          `c': the file is marked for automatic compression,
    -          `s': the file is marked for secure deletion: when the file is
    -          deleted, its blocks are zeroed and written back to the disk,
    -          `u': the file is marked for undeletion: when the file is deleted,
    -          its contents are saved to allow a future undeletion.
    -          Currently, only the `s' attribute is implemented in the kernel
    -          code.  Support for the other attributes will be added in a future
    -          release.
    -        - a few bugs related to times updates have been fixed by Bruce
    -          Evans and me.
    -        - a bug related to the links count of deleted inodes has been fixed.
    -          Previous versions used to keep the links count set to 1 when a file
    -          was deleted.  The new version now sets links_count to 0 when deleting
    -          the last link.
    -        - a race condition when deallocating an inode has been fixed by
    -          Stephen Tweedie.
    -
    -
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