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