| (Note: I consider version numbers as cheap. That means | 
 | that I do not like numbers like 0.1 and the like for | 
 | things that can be used since quite some time. But | 
 | then, 3.1 doesn't mean 'perfectly stable', too.) | 
 |  | 
 | Known bugs: | 
 | ----------- | 
 |  | 
 | - Doesn't work on the alpha. The only 64/32-bit | 
 |   problem that I'm aware of (pointer/int conversion | 
 |   in readdir()) gives compiler warnings but is | 
 |   apparently not causing the failure, as directory | 
 |   reads basically work (but all files are of size 0). | 
 |   Alas, I've got no alpha to debug. :-( | 
 |  | 
 | - The partition checker (drivers/block/genhd.c) | 
 |   doesn't work with devices which have 256 byte | 
 |   blocks (some very old SCSI drives).  | 
 |  | 
 | - The feature to automatically make the fs clean | 
 |   might leave a trashed file system with the | 
 |   bitmap flag set valid. | 
 |  | 
 | - When a file is truncated to a size that is not | 
 |   a multiple of the blocksize, the rest of the | 
 |   last allocated block is not cleared. Well, | 
 |   this fs never claimed to be Posix conformant. | 
 |  | 
 | Please direct bug reports to: zippel@linux-m68k.org | 
 |  | 
 | Version 3.20 | 
 | ------------ | 
 | - kill kernel lock | 
 | - fix for a possible bitmap corruption | 
 |  | 
 | Version 3.19 | 
 | ------------ | 
 |  | 
 | - sizeof changes from Kernel Janitor Project | 
 | - several bug fixes found with fsx | 
 |  | 
 | Version 3.18 | 
 | ------------ | 
 |  | 
 | - change to global min macro + warning fixes | 
 | - add module tags | 
 |  | 
 | Version 3.17 | 
 | ------------ | 
 |  | 
 | - locking fixes | 
 | - wrong sign in __affs_hash_dentry | 
 | - remove unnecessary check in affs_new_inode | 
 | - enable international mode for dircache fs | 
 |  | 
 | Version 3.16 | 
 | ------------ | 
 |  | 
 | - use mark_buffer_dirty_inode instead of mark_buffer_dirty. | 
 | - introduce affs_lock_{link|dir|ext}. | 
 |  | 
 | Version 3.15 | 
 | ------------ | 
 |  | 
 | - disable link to directories until we can properly support them. | 
 | - locking fixes for link creation/removal. | 
 |  | 
 | Version 3.14 | 
 | ------------ | 
 |  | 
 | - correctly cut off long file names for compares | 
 | - correctly initialize s_last_bmap | 
 |  | 
 | Version 3.13 | 
 | ------------ | 
 |  | 
 | Major cleanup for 2.4 [Roman Zippel] | 
 | - new extended block handling | 
 | - new bitmap allocation functions | 
 | - locking should be safe for the future | 
 | - cleanup of some interfaces | 
 |  | 
 | Version 3.12 | 
 | ------------ | 
 |  | 
 | more 2.4 fixes: [Roman Zippel] | 
 | - s_lock changes | 
 | - increased getblock mess | 
 | - clear meta blocks  | 
 |  | 
 | Version 3.11 | 
 | ------------ | 
 |  | 
 | - Converted to use 2.3.x page cache [Dave Jones <dave@powertweak.com>] | 
 | - Corruption in truncate() bugfix [Ken Tyler <kent@werple.net.au>] | 
 |  | 
 | Version 3.10 | 
 | ------------ | 
 |  | 
 | - Changed partition checker to allow devices | 
 |   with physical blocks != 512 bytes. | 
 |  | 
 | - The partition checker now also ignores the | 
 |   word at 0xd0 that Windows likes to write to. | 
 |  | 
 | Version 3.9 | 
 | ----------- | 
 |  | 
 | - Moved cleanup from release_file() to put_inode(). | 
 |   This makes the first one obsolete. | 
 |  | 
 | - truncate() zeroes the unused remainder of a | 
 |   partially used last block when a file is truncated. | 
 |   It also marks the inode dirty now (which is not | 
 |   really necessary as notify_change() will do | 
 |   it anyway). | 
 |  | 
 | - Added a few comments, fixed some typos (and | 
 |   introduced some new ones), made the debug messages | 
 |   more consistent. Changed a bad example in the | 
 |   doc file (affs.txt). | 
 |  | 
 | - Sets the NOEXEC flag in read_super() for old file | 
 |   systems, since you can't run programs on them. | 
 |  | 
 | Version 3.8 | 
 | ----------- | 
 | Bill Hawes kindly reviewed the affs and sent me the | 
 | patches he did. They're marked (BH). Thanks, Bill! | 
 |  | 
 | - Cleanup of error handling in read_super(). | 
 |   Didn't release all resources in case of an | 
 |   error. (BH) | 
 |  | 
 | - put_inode() releases the ext cache only if it's | 
 |   no longer needed. (BH) | 
 |  | 
 | - One set of dentry callbacks is enough. (BH) | 
 |  | 
 | - Cleanup of error handling in namei.c. (BH) | 
 |  | 
 | - Cleanup of error handling in file.c. (BH) | 
 |  | 
 | - The original blocksize of the device is | 
 |   restored when the fs is unmounted. (BH) | 
 |  | 
 | - getblock() did not invalidate the key cache | 
 |   when it allocated a new block. | 
 |  | 
 | - Removed some unnecessary locks as Bill | 
 |   suggested. | 
 |  | 
 | - Simplified match_name(), changed all hashing | 
 |   and case insensitive name comparisons to use | 
 |   uppercase. This makes the tolower() routines | 
 |   obsolete. | 
 |  | 
 | - Added mount option 'mufs' to force muFS | 
 |   uid/gid interpretation. | 
 |  | 
 | - File mode changes were not updated on disk. | 
 |   This was fixed before, but somehow got lost. | 
 |  | 
 | Version 3.7 | 
 | ----------- | 
 |  | 
 | - Added dentry callbacks to allow the dcache to | 
 |   operate case insensitive and length ignorant | 
 |   like the affs itself. | 
 |  | 
 | - getblock() didn't update the lastblock field in the | 
 |   inode if the fs was not an OFS. This bug only shows | 
 |   up if a file was enlarged via truncate() and there | 
 |   was not enough space. | 
 |  | 
 | - Remove some more superfluous code left over from | 
 |   the old link days ... | 
 |  | 
 | - Fixed some oversights which were in patch 2.1.78. | 
 |  | 
 | - Fixed a few typos. | 
 |  | 
 | Version 3.6 | 
 | ----------- | 
 |  | 
 | - dentry changes. (Thanks to Jes Sorensen for his help.) | 
 |  | 
 | - Fixed bug in balloc(): Superblock was not set dirty after | 
 |   the bitmap was changed, so the bitmap wasn't sync'd. | 
 |  | 
 | - Fixed nasty bug in find_new_zone(): If the current | 
 |   zone number was zero, the loop didn't terminate, | 
 |   causing a solid lock-up. | 
 |  | 
 | - Removed support for old-style directory reads. | 
 |  | 
 | - Fixed bug in add_entry(): When doing a sorted insert, | 
 |   the pointer to the next entry in the hash chain wasn't | 
 |   correctly byte-swapped. Since most of the users of the | 
 |   affs use it on a 68k, they didn't notice. But why did | 
 |   I not find this during my tests? | 
 |  | 
 | - Fixed some oversights (version wasn't updated on some | 
 |   directory changes). | 
 |  | 
 | - Handling of hard links rewritten. To the VFS | 
 |   they appear now as normal Unix links. They are | 
 |   now resolved only once in lookup(). The backside | 
 |   is that unlink(), rename() and rmdir() have to | 
 |   be smart about them, but the result is worth the | 
 |   effort. This also led to some code cleanup. | 
 |  | 
 | - Changed name type to unsigned char; the test for | 
 |   invalid filenames didn't work correctly. | 
 |   (Thanks to Michael Krause for pointing at this.) | 
 |  | 
 | - Changed mapping of executable flag. | 
 |  | 
 | - Changed all network byte-order macros to the | 
 |   recommended ones. | 
 |  | 
 | - Added a remount function, so attempts to remount | 
 |   a dircache filesystem or one with errors read/write | 
 |   can be trapped. Previously, ro remounts didn't | 
 |   flush the super block, and rw remounts didn't | 
 |   create allocation zones ... | 
 |  | 
 | - Call shrink_dcache_parent() in rmdir(). | 
 |   (Thanks to Bill Hawes.) | 
 |  | 
 | - Permission checks in unlink(). | 
 |  | 
 | - Allow mounting of volumes with superfluous | 
 |   bitmap pointers read only, also allows them | 
 |   to be remounted read/write. | 
 |  | 
 | - Owner/Group defaults now to the fs user (i.e. | 
 |   the one that mounted it) instead of root. This | 
 |   obsoletes the mount options uid and gid. | 
 |  | 
 | - Argument to volume option could overflow the | 
 |   name buffer. It is now silently truncated to | 
 |   30 characters. (Damn it! This kind of bug | 
 |   is too embarrassing.) | 
 |  | 
 | - Split inode.c into 2 files, the superblock | 
 |   routines desperately wanted their own file. | 
 |  | 
 | - truncate() didn't allocate an extension block | 
 |   cache. If a file was extended by means of | 
 |   truncate(), this led to an Oops. | 
 |  | 
 | - fsuser is now checked last. | 
 |  | 
 | - rename() will not ignore changes in filename | 
 |   casing any more (though mv(1) still won't allow | 
 |   you to do "mv oldname OldName"). | 
 |  | 
 | Version 3.5 | 
 | ----------- | 
 |  | 
 | - Extension block caches are now allocated on | 
 |   demand instead of when a file is opened, as | 
 |   files can be read and written without opening | 
 |   them (e. g. the loopback device does this). | 
 |  | 
 | - Removed an unused function. | 
 |  | 
 | Version 3.4 | 
 | ----------- | 
 |  | 
 | - Hash chains are now sorted by block numbers. | 
 |   (Thanks to Kars de Jong for finding this.) | 
 | - Removed all unnecessary external symbols. | 
 |  | 
 | Version 3.3 | 
 | ----------- | 
 |  | 
 | - Tried to make all types 'correct' and consistent. | 
 | - Errors and warnings are now reported via a | 
 |   function. They are all prefixed by a severity | 
 |   and have the same appearance: | 
 |     "AFFS: <function>: <error message>" | 
 |   (There's one exception to this, as in that function | 
 |   is no pointer to the super block available.) | 
 | - The filesystem is remounted read-only after an | 
 |   error. | 
 | - The names of newly created filesystem objects are | 
 |   now checked for validity. | 
 | - Minor cleanups in comments. | 
 | - Added this Changes file. At last! | 
 |  | 
 | Version 3.2 | 
 | ----------- | 
 |  | 
 | - Extension block cache: Reading/writing of huge files | 
 |   (several MB) is much faster (of course the added | 
 |   overhead slows down opening, but this is hardly | 
 |   noticeable). | 
 | - The same get_block()-routine can now be used for | 
 |   both OFS and FFS. | 
 | - The super block is now searched in the block that | 
 |   was calculated and in the one following. This | 
 |   should remedy the round-off error introduced by | 
 |   the 1-k blocks that Linux uses. | 
 | - Minor changes to adhere to the new VFS interface. | 
 | - The number of used blocks is now also calculated | 
 |   if the filesystem is mounted read-only. | 
 | - Prefixed some constants with AFFS_ to avoid name | 
 |   clashes. | 
 | - Removed 'EXPERIMENTAL' status. | 
 |  | 
 | Version 3.1 | 
 | ----------- | 
 |  | 
 | - Fixed a nasty bug which didn't allow read-only | 
 |   mounts. | 
 | - Allow dir-cache filesystems to be mounted | 
 |   read only. | 
 | - OFS support. | 
 | - Several other changes I just cannot remember | 
 |   any more. | 
 |  | 
 | Version 3.0 | 
 | ----------- | 
 |  | 
 | - Almost complete rewrite for the new VFS | 
 |   interface in Linux 1.3. | 
 | - Write support. | 
 | - Support for hard and symbolic links. | 
 | - Lots of things I remember even less ... | 
 |  | 
 | Version 2.0 | 
 | ----------- | 
 |  | 
 | - Fixed a few things to get it compiled. | 
 | - Automatic root block calculation. | 
 | - Partition checker for genhd.c | 
 |  | 
 | ======================================== | 
 |  | 
 | Let's just call Ray Burr's original affs | 
 | 'Version 1.0'. |