|  | (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'. |