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Diffstat (limited to 'ANDROID_3.4.5/fs/befs/ChangeLog')
| -rw-r--r-- | ANDROID_3.4.5/fs/befs/ChangeLog | 417 |
1 files changed, 417 insertions, 0 deletions
diff --git a/ANDROID_3.4.5/fs/befs/ChangeLog b/ANDROID_3.4.5/fs/befs/ChangeLog new file mode 100644 index 00000000..75a461cf --- /dev/null +++ b/ANDROID_3.4.5/fs/befs/ChangeLog @@ -0,0 +1,417 @@ +Version 0.92 (2002-03-29) +========== +* Minor cleanup. Ran Lindent on the sources. + +Version 0.92 (2002-03-27) +========== +* Fixed module makefile problem. It was not compiling all the correct + source files! +* Removed duplicated function definition +* Fixed potential null pointer dereference when reporting an error + +Version 0.91 (2002-03-26) +========== +* Oy! Fixed stupid bug that would cause an unresolved symbol error. + Thanks to Laszlo Boszormenyi for pointing this out to me. + +Version 0.9 (2002-03-14) +========== +* Added Sergey S. Kostyliov's patch to eliminate memcpy() overhead + from b+tree operations. Changes the befs_read_datastream() interface. + +* Segregated the functions that interface directly with the linux vfs + interface into their own file called linuxvfs.c. [WD] + +Version 0.64 (2002-02-07) +========== +* Did the string comparison really right this time (btree.c) [WD] + +* Fixed up some places where I assumed that a long int could hold + a pointer value. (btree.c) [WD] + +* Andrew Farnham <andrewfarnham@uq.net.au> pointed out that the module + wouldn't work on older (<2.4.10) kernels due to an unresolved symbol. + This is bad, since 2.4.9 is still the current RedHat kernel. I added + a workaround for this problem (compatibility.h) [WD] + +* Sergey S. Kostyliov made befs_find_key() use a binary search to find + keys within btree nodes, rather than the linear search we were using + before. (btree.c) [Sergey S. Kostyliov <rathamahata@php4.ru>] + +* Made a debian package of the source for use with kernel-package. [WD] + + +Version 0.63 (2002-01-31) +========== +* Fixed bug in befs_find_brun_indirect() that would result in the wrong + block being read. It was introduced when adding byteswapping in + 0.61. (datastream.c) [WD] + +* Fixed a longstanding bug in befs_find_key() that would result in it + finding the first key that is a substring of the string it is searching + for. For example, this would cause files in the same directory with + names like file1 and file2 to mysteriously be duplicates of each other + (because they have the same inode number). Many thanks to Pavel Roskin + for reporting this serious bug!!! + (btree.c) [WD] + +* Added support for long symlinks, after Axel Dorfler explained up how + they work. I had forgotten all about them. (inode.c, symlink.c) [WD] + +* Documentation improvements in source. [WD] + +* Makefile fix for independent module when CONFIG_MODVERSION is set in + kernel config [Pavel Roskin <proski@gnu.org>] + +* Compile warning fix for namei.c. [Sergey S. Kostyliov <rathamahata@php4.ru>] + + +Version 0.62 +========== +* Fixed makefile for module install [WD] + + +Version 0.61 (2002-01-20) +========== +* Made functions in endian.h to do the correct byteswapping, no matter + the arch. [WD] + +* Abbandoned silly checks for a NULL superblock pointer in debug.c. [WD] + +* Misc code cleanups. Also cleanup of this changelog file. [WD] + +* Added byteswapping to all metadata reads from disk. + Uses the functions from endian.h [WD] + +* Remove the typedef of struct super_block to vfs_sb, as it offended + certain peoples' aesthetic sense. [WD] + +* Ditto with the befs_read_block() interface. [WD] + + +Version 0.6 (2001-12-15) +========== +* Cleanup of NLS functions (util.c) [WD] + +* Make directory lookup/read use the NLS if an iocharset is provided. [WD] + +* Fixed stupid bug where specifying the uid or gid mount options as '0' + would result in the filesystem using the on-disk uid and gid. [WD] + +* Added mount option to control debug printing. + The option is, simply enough, 'debug'. + (super.c, debug.c) [WD] + +* Removed notion of btree handle from btree.c. It was unnecessary, as the + linux VFS doesn't allow us to keep any state between calls. Updated + dir.c, namei.c befs_fs.h to account for it. [WD] + +* Improved handleing of overflow nodes when listing directories. + Now works for overflow nodes hanging off of nodes other than the root + node. This is the cleaner solution to Brent Miszalaski's problem. [WD] + +* Added new debug/warning/error print functions in debug.c. + More flexible. Will soon be controllable at mount time + (see TODO). [WD] + +* Rewrote datastream position lookups. + (datastream.c) [WD] + +* Moved the TODO list to its own file. + + +Version 0.50 (2001-11-13) +========== +* Added workaround for mis-understanding of the nature of the b+trees used + in directories. A cleaner solution will come after I've thought about it + for a while. Thanks to Brent Miszalaski for finding and reporting this bug. + (btree.c) [WD] + +* Minor cleanups + +* Added test for "impossible" condition of empty internal nodes in + seekleaf() in btree.c [WD] + +* Implemented the abstracted read_block() in io.c [WD] + +* Cleaned up the inode validation in inode.c [WD] + +* Anton Altaparmakov figured out (by asking Linus :) ) what was causing the + hanging disk io problem. It turns out you need to have the sync_pages + callback defined in your address_space_ops, even if it just uses the + default linux-supplied implementation. Fixed. Works now. + (file.c) [WD] + +* Anton Altaparmakov and Christoph Hellwig alerted me to the fact that + filesystem code should be using GFP_NOFS instead of GFP_KERNEL as the + priority parameter to kmalloc(). Fixed. + (datastream.c, btree.c super.c inode.c) [WD] + +* Anton also told me that the blocksize is not allowed to be larger than + the page size in linux, which is 4k i386. Oops. Added a test for + (blocksize > PAGE_SIZE), and refuse to mount in that case. What this + practically means is that 8k blocksize volumes won't work without a major + restructuring of the driver (or an alpha or other 64bit hardware). [WD] + +* Cleaned up the befs_count_blocks() function. Much smarter now. + And somewhat smaller too. [WD] + +* Made inode allocations use a slab cache + (super.c inode.c) [WD] + +* Moved the freeing of the private inode section from put_inode() to + clear_inode(). This fixes a potential free twice type bug. Put_inode() + can be called multiple times for each inode struct. [WD] + +* Converted all non vfs-callback functions to use befs_sb_info as the + superblock type, rather than struct super_block. This is for + portablity. [WD] + +* Fixed a couple of compile warnings due to use of malloc.h, when slab.h + is the new way. (inode.c, super.c) [WD] + +* Fixed erronous includes of linux/befs_fs_i.h and linux/befs_fs_sb.h + in inode.c [WD] + +Version 0.45 (2001-10-29) +========== +* Added functions to get the private superblock and inode structures from + their enclosing public structures. Switched all references to the + private portions to use them. (many files) [WD] + +* Made read_super and read_inode allocate the private portions of those + structures into the generic pointer fields of the public structures + with kmalloc(). put_super and put_inode free them. This allows us not + to have to touch the definitions of the public structures in + include/linux/fs.h. Also, befs_inode_info is huge (because of the + symlink string). (super.c, inode.c, befs_fs.h) [WD] + +* Fixed a thinko that was corrupting file reads after the first block_run + is done being read. (datastream.c) [WD] + +* Removed fsync() hooks, since a read-only filesystem doesn't need them. + [Christoph Hellwig]. + +* Fixed befs_readlink() (symlink.c) [Christoph Hellwig]. + +* Removed all the Read-Write stuff. I'll redo it when it is time to add + write support (various files) [WD]. + +* Removed prototypes for functions who's definitions have been removed + (befs_fs.h) [WD]. + + +Version 0.4 (2001-10-28) +========== +* Made it an option to use the old non-pagecache befs_file_read() for + testing purposes. (fs/Config.in) + +* Fixed unused variable warnings when compiling without debugging. + +* Fixed a bug where the inode and super_block didn't get their blockbits + fields set (inode.c and super.c). + +* Release patch version 11. AKA befs-driver version 0.4. + +* Thats right. New versioning scheme. + I've done some serious testing on it now (on my box anyhow), and it + seems stable and not outragously slow. Existing features are more-or-less + correct (see TODO list). But it isn't 1.0 yet. I think 0.4 gives me some + headroom before the big 1.0. + + +2001-10-26 +========== +* Fixed date format in this file. Was I smoking crack? + +* Removed old datastream code from file.c, since it is nolonger used. + +* Generic_read_file() is now used to read regular file data. + It doesn't chew up the buffer cache (it does page io instead), and seems + to be about as fast (even though it has to look up each file block + indivdualy). And it knows about doing readahead, which is a major plus. + So it does i/o in much larger chunks. It is the correct linux way. It + uses befs_get_block() by way of befs_readpage() to find the disk offsets + of blocks, which in turn calls befs_fpos2brun() in datastream.c to do + the hard work of finding the disk block number. + +* Changed method of checking for a dirty filesystem in befs_read_super + (super.c). Now we check to see if log_start and log_end differ. If so, + the journal needs to be replayed, and the filesystem cannot be mounted. + +* Fixed an extra instance of MOD_DEC_USE_COUNT in super.c + +* Fixed a problem with reading the superblock on devices with large sector + sizes (such as cdroms) on linux 2.4.10 and up. + +2001-10-24 +========== +* Fix nasty bug in converting block numbers to struct befs_inode_addr. + Subtle, because the old version was only sometimes wrong. + Probably responsible for lots of problems. (inode.c) + +* Fix bug with reading an empty directory. (btree.c and dir.c) + +* This one looks good. Release patch version 10 + +2001-10-23 +========== +* Added btree searching function. + +* Use befs_btree_find in befs_lookup (namei.c) + +* Additional comments in btree.c + +2001-10-22 +========== +* Added B+tree reading functions (in btree.c). + Made befs_readdir() use them them instead of the cruft in index.c. + +2001-09-11 +========== +* Converted befs_read_file() to use the new datastream code. + +* Finally updated the README file. + +* Added many comments. + +* Posted version 6 + +* Removed byte-order conversion code. + I have no intention of supporting it, and it was very ugly. + Flow control with #ifdef (ugh). Maybe I'll redo it once + native byteorder works 100%. + +2001-09-10 +========== +* Finished implementing read_datastream() + +* made befs_read_brun() more general + Supports an offset to start at and a max bytes to read + Added a wrapper function to give the old call + +2001-09-30 +========== +* Discovered that the datastream handleing code in file.c is quite deficient + in several respects. For one thing, it doesn't deal with indirect blocks + +* Rewrote datastream handleing. + +* Created io.c, for io related functions. + Previously, the befs_bread() funtions lived in file.c + Created the befs_read_brun() function. + + +2001-09-07 +========== +* Made a function to actually count the number of fs blocks used by a file. + And helper functions. + (fs/befs/inode.c) + +2001-09-05 +========== +* Fixed a misunderstanding of the inode fields. + This fixed the problmem with wrong file sizes from du and others. + The i_blocks field of the inode struct is not the number of blocks for the + inode, it is the number of blocks for the file. Also, i_blksize is not + necessarily the size of the inode, although in practice it works out. + Changed to blocksize of filesystem. + (fs/befs/inode.c) + +* Permanently removed code that had been provisionally ifdefed out of befs_fs.h + +* Since we don't support access time, make that field zero, instead of + copying m_time. + (fs/befs/inode.c) + +* Added sanity check for inode reading + Make sure inode we got was the one we asked for. + (fs/befs/inode.c) + +* Code cleanup + Local pointers to commonly used structures in inode.c. + Got rid of abominations befs_iaddr2inode() and befs_inode2ino(). + Replaced with single function iaddr2blockno(). + (fs/befs/super.c) (fs/befs/inode.c) + +2001-09-01 +========== +* Fixed the problem with statfs where it would always claim the disk was + half full, due to improper understanding of the statfs fields. + (fs/befs/super.c) + +* Posted verion 4 of the patch + +2001-09-01 +========== +* Changed the macros in befs_fs.h to inline functions. + More readable. Typesafe. Better + (include/linux/befs_fs.h) + +* Moved type definitions from befs_fs.h to a new file, befs_fs_types.h + Because befs_fs_i.h and befs_fs_sb.h were including befs_fs.h for the + typedefs, and they are inlcuded in <linux/fs.h>, which has definitions + that I want the inline functions in befs_fs.h to be able to see. Nasty + circularity. + (include/linux/befs_fs.h) + +2001-08-30 +========== +* Cleaned up some wording. + +* Added additional consitency checks on mount + Check block_size agrees with block_shift + Check flags == BEFS_CLEAN + (fs/befs/super.c) + +* Tell the kernel to only mount befs read-only. + By setting the MS_RDONLY flag in befs_read_super(). + Not that it was possible to write before. But now the kernel won't even try. + (fs/befs/super.c) + +* Got rid of kernel warning on mount. + The kernel doesn't like it if you call set_blocksize() on a device when + you have some of its blocks open. Moved the second set_blocksize() to the + very end of befs_read_super(), after we are done with the disk superblock. + (fs/befs/super.c) + +* Fixed wrong number of args bug in befs_dump_inode + (fs/befs/debug.c) + +* Solved lots of type mismatches in kprint()s + (everwhere) + +2001-08-27 +========== +* Cleaned up the fs/Config.in entries a bit, now slightly more descriptive. + +* BeFS depends on NLS, so I made activating BeFS enable the NLS questions + (fs/nls/Config.in) + +* Added Configure.help entries for CONFIG_BEFS_FS and CONFIG_DEBUG_BEFS + (Documentation/Configure.help) + +2001-08-?? +========== +* Removed superblock locking calls in befs_read_super(). In 2.4, the VFS + hands us a super_block struct that is already locked. + +2001-08-13 +========== +* Will Dyson <will_dyson@pobox.com> is now attempting to maintain this module + Makoto Kato <m_kato@ga2.so-net.ne.jp> is original author.Daniel Berlin + also did some work on it (fixing it up for the later 2.3.x kernels, IIRC). + +* Fixed compile errors on 2.4.1 kernel (WD) + Resolve rejected patches + Accommodate changed NLS interface (util.h) + Needed to include <linux/slab.h> in most files + Makefile changes + fs/Config.in changes + +* Tried to niceify the code using the ext2 fs as a guide + Declare befs_fs_type using the DECLARE_FSTYPE_DEV() macro + +* Made it a configure option to turn on debugging (fs/Config.in) + +* Compiles on 2.4.7 |