1 Thu May 8 22:19:09 1997 Theodore Ts'o <tytso@rsts-11.mit.edu>
3 * badblocks.c (ext2fs_badblocks_list_test): Fix bug where
4 ext2fs_badblocks_list_test would test the list (and exceed
5 array boundaries) if there were no bad blocks on the bad
6 blocks list. (Showed up when user tried: mke2fs -c -b 4096).
8 Thu Apr 24 12:16:42 1997 Theodre Ts'o <tytso@localhost.mit.edu>
10 * Release of E2fsprogs version 1.10
12 Thu Apr 24 10:13:42 1997 Theodre Ts'o <tytso@localhost.mit.edu>
14 * alloc_tables.c (ext2fs_allocate_tables): Correctly place the
15 inode and block bitmaps based on the RAID 0 stride
16 parameter (which is passed by mke2fs).
18 * ext2fs.h: Add "stride" parameter to ext2_filsys, to be used by
19 mke2fs to communicate the stride length to
20 ext2fs_allocate_tables()
22 Wed Apr 23 21:50:42 1997 Theodre Ts'o <tytso@localhost.mit.edu>
24 * initialize.c (ext2fs_initialize): Fix to compile under Linux 1.2
25 systems. (We can't assume that the new filesystem types
28 Wed Apr 23 18:40:53 1997 Theodore Ts'o <tytso@rsts-11.mit.edu>
30 * alloc_tables.c (ext2fs_allocate_tables): Make sure that we
31 allocate the inode and block bitmaps inside block group at
34 Mon Apr 21 00:06:28 1997 Theodore Ts'o <tytso@rsts-11.mit.edu>
36 * alloc.c (ext2fs_new_block): Fix bug where if goal==0 and the
37 filesystem has no free blocks, ext2fs_new_block would loop
40 * dupfs.c (ext2fs_dup_handle): Duplicate an ext2 filesystem handle
42 * freefs.c (ext2fs_free_inode_cache): Decrement refcount and only
43 free if refcount goes to zero.
45 * inode.c (create_icache): Initialize refcount to 1.
47 * ext2fsP.h: Added refcount to ext2_inode_cache
49 * dblist.c (ext2fs_copy_dblist): New function to copy a directory
52 * badblocks.c (ext2fs_badblocks_copy): New function to copy a
55 Sun Apr 20 23:19:51 1997 Theodore Ts'o <tytso@rsts-11.mit.edu>
57 * bitmaps.c (ext2fs_copy_bitmap): New function to copy a bitmap.
59 * unix_io.c, test_io.c (unix_open, test_open): Initialize the
61 (unix_close, test_close): Decrement the refcount and only
62 close the io_channel if the refcount goes to 0.
64 * io.h: Add refcount to the io_channel structure. Add new macro
65 interface io_channel_bumpcount() to bump the refcount.
67 Thu Apr 17 20:25:03 1997 Theodore Ts'o <tytso@rsts-11.mit.edu>
69 * inode.c (ext2fs_read_inode, ext2fs_write_inode): Use the inode
70 cache in the filesystem handle, instead of the inode cache
73 * freefs.c: Added static function to free the inode cache (called by
76 * ext2fsP.h: Added definition of the ext2_inode_cache structures.
78 * ext2fs.h: Added pointer to the inode_cache structure.
80 * block.c (block_iterate_ind, block_iterate_dind,
81 block_iterate_tind): If there are holes in the indirect,
82 doubly indirect, or triply indirect blocks, increment the
83 block count field automatically.
85 Thu Apr 17 12:23:38 1997 Theodore Ts'o <tytso@rsts-11.mit.edu>
87 * Release of E2fsprogs version 1.09
89 Mon Apr 14 20:38:56 1997 Theodore Ts'o <tytso@rsts-11.mit.edu>
91 * version.c (ext2fs_parse_version_string): Check the passed in
92 version string (instead of the hard-coded one).
94 * alloc_tables.c (ext2fs_allocate_tables): If the last block is
95 greater filesystem size, clamp it to prevent allocating a
96 block or inode bitmap beyond the filesystem.
98 * initialize.c (ext2fs_initialize): Fix bug where the metatdata
99 overhead calculation was accidentally removed.
101 Fri Apr 11 18:56:26 1997 Theodore Ts'o <tytso@rsts-11.mit.edu>
103 * Release of E2fsprogs version 1.08
105 Thu Apr 10 13:15:15 1997 Theodore Ts'o <tytso@rsts-11.mit.edu>
107 * dblist.c (ext2fs_set_dir_block): New function which sets the
108 block of a dblist entry, given the directory inode and
111 Sat Apr 5 12:42:42 1997 Theodore Ts'o <tytso@rsts-11.mit.edu>
113 * alloc_tables.c (ext2fs_allocate_tables): Allocate the bitmap and
114 inode bitmaps at staggered locations across the block
115 groups, to avoid concentrating the bitmaps on a small
116 number of disks when using striped RAID arrays.
118 * initialize.c (ext2fs_initialize): By default, choose the maximum
119 possible number of blocks per group (based on the size of
120 the bitmaps in the blocksize).
122 Fri Apr 4 11:28:16 1997 Theodore Ts'o <tytso@rsts-11.mit.edu>
124 * initialize.c (ext2fs_initialize): Add support for
125 EXT2_COMPAT_SPARSE_SUPER feature.
127 * closefs.c (ext2fs_bg_has_super): New function to determine
128 whether or a particular block group should have a
129 superblock and block group descriptor. Used for the
130 EXT2_COMPAT_SPARSE_SUPER feature is turned on.
131 (ext2fs_flush): Check ext2fs_bg_has_super to see whether
132 or not the superblock should be written out for the block
135 * ext2fs.h (EXT2_COMPAT_SPARSE_SUPER): Define compatibility flag
136 for sparse duplicate superblocks.
138 * version.c (ext2fs_get_library_version): New function which
139 returns the library version.
141 * version.c (ext2fs_parse_version_string): New function which
142 parses a version string and returns a version number,
143 so application programs can compare version numbers as
146 Wed Mar 26 00:43:52 1997 Theodore Ts'o <tytso@rsts-11.mit.edu>
148 * icount.c (ext2fs_create_icount): Change function so that it also
149 takes a new argument which contains a "hint" icount
150 structure. This "hint" icount allows the create function
151 to set up the sorted list in advance. This reduces
152 significantly the amount of data moving needed to insert
153 these inodes into the list later.
155 * icount.c (ext2fs_icount_validate): New function which validates
156 that the icount structure's rep invariant.
158 * icount.c (get_icount_el): Completely revamped implementation
159 to subsume put_icount_el(). Put_icount_el() used to
160 use an O(N) implementation to insert in the middle
161 of the icount list. It now uses a O(ln N) to search
162 for where the icount should be inserted, and then uses
163 a memcpy to move the list down (instead of a for loop).
165 * icount.c (ext2fs_icount_fetch, ext2fs_icount_store,
166 ext2fs_icount_increment, ext2fs_icount_decrement): Check
167 to see if the inode is within bounds; if it isn't, return
170 * bitops.h (ext2fs_test_generic_bitmap): Fix error message given
171 when a bad inode number is passed to test_generic_bitmap
172 to be EXT2FS_TEST_ERROR instead of the wrong
175 Wed Mar 12 13:32:05 1997 Theodore Y. Ts'o <tytso@mit.edu>
177 * Release of E2fsprogs version 1.07
179 Sun Mar 2 16:46:18 1997 Theodore Ts'o <tytso@rsts-11.mit.edu>
181 * Makefile.in (ELF_VERSION): Change version to be 2.2
183 Tue Feb 11 14:54:02 1997 Theodore Ts'o <tytso@rsts-11.mit.edu>
185 * alloc.c (ext2fs_get_free_blocks): Change routine to use
186 ext2fs_fast_test_block_bitmap_range().
188 * bitops.h (ext2fs_fast_test_block_bitmap_range,
189 ext2fs_test_block_bitmap_range: New inline functions which
190 test to see whether a contiguous range of blocks is
193 Thu Feb 6 10:00:13 1997 Theodore Ts'o <tytso@rsts-11.mit.edu>
195 * badblocks.c (ext2fs_badblocks_list_create): Rename sybmols to use
196 use ext2fs_badblocks_* instead of badblocks_*
198 * bb_compat.c: New file which translates between old badblocks_*()
199 names to ext2fs_badblocks_*()
201 * unlink.c (ext2fs_unlink): New file, moved ext2fs_unlink() from
202 link.c (since e2fsck doesn't use ext2fs_unlink()).
204 * rs_bitmap.c (ext2fs_resize_generic_bitmap): New file, contains
205 bitmap resizing routine moved from bitmaps.c, since e2fsck
206 doesn't need to use this function.
208 * lookup.c (ext2fs_lookup): Moved ext2fs_lookup to its own file,
209 since e2fsck only needs ext2fs_lookup.
211 Mon Feb 3 10:11:40 1997 Theodore Ts'o <tytso@rsts-11.mit.edu>
213 * inode.c (ext2fs_open_inode_scan): Set fs->badblocks if it is not
214 already set; this is needed so that programs like dump
215 which use the inode scan functions will deal with
216 filesystems that have bad blocks in the inode table.
218 Sun Feb 2 00:17:36 1997 Theodore Ts'o <tytso@rsts-11.mit.edu>
220 * ext2fs.h (struct_badblocks_list, struct_badblocks_iterate):
221 Moved to ext2fsP.h, since it doesn't need to be part of
222 the public interface.
224 * dir_iterate.c: Move ext2_dir_iterate out of namei.c.
226 Sat Feb 1 10:14:55 1997 Theodore Ts'o <tytso@rsts-11.mit.edu>
228 * dblist.c (ext2fs_get_num_dirs): New file, which implements a
229 directory block list abstraction. (Code moved from
232 * ext2fs.h, inode.c: Moved definition of ext2_struct_inode_scan to
233 to inode.c (since no one else should be peeking inside it!)
235 * valid_blk.c (ext2_inode_has_valid_blocks): New function.
237 * openfs.c (ext2fs_open): Check the feature set in the ext2
238 superblock, and refuse to open filesystems if they contain
239 incompatible features. (Can be overriden with the
242 Sun Jan 12 11:31:46 1997 Theodore Ts'o <tytso@rsts-11.mit.edu>
244 * block.c (ext2fs_block_iterate2): Added new function
245 ext2fs_block_iterate2 which changes the function
246 signature of the callback function to include the
247 referencing block and offset.
249 * inode.c (ext2fs_inode_scan_goto_blockgroup): Added new function
250 ext2fs_inode_scan_goto_blockgroup which allows an
251 application to jump to a particular block group while
254 Wed Jan 1 23:50:12 1997 Theodore Ts'o <tytso@rsts-11.mit.edu>
256 * dirblock.c: Include string.h, since we use memcpy().
258 Tue Dec 3 12:27:29 1996 Theodore Ts'o <tytso@rsts-11.mit.edu>
260 * getsize.c (ext2fs_get_device_size): The ioctl BLKGETSIZE returns
261 a long not an int; this doesn't matter on i386 machines,
262 but it does on Alpha's.
264 Fri Nov 29 20:57:37 1996 Theodore Ts'o <tytso@rsts-11.mit.edu>
266 * inode.c (ext2fs_write_inode, ext2fs_read_inode): If the inode
267 table pointer is NULL, then return an error indicating
268 that the inode table is missing.
269 (get_next_blockgroup, get_next_blocks,
270 ext2fs_get_next_inode): Don't treat a missing inode table
271 as permanent error. Return MISSING_INODE_TABLE, but as an
272 advisory error code, much like BAD_BLOCK_IN_INODE_TABLE.
274 * rw_bitmaps.c (ext2fs_write_block_bitmap,
275 ext2fs_write_inode_bitmap): If the inode or block bitmap
276 block is zero, then don't write out the inode or block
277 bitmap. The idea here is to avoid stomping on the
279 (read_bitmaps): If the inode or block bitmap block is
280 zero, then fill in that portion of the inode or block
281 bitmap with all zeros.
283 * inode.c (ext2fs_get_next_inode): Fix bug in handling of bad
284 blocks in inode table when the inode table size is
285 non-standard (and can therefore span blocks).
287 Tue Oct 29 20:13:14 1996 Theodore Ts'o <tytso@rsts-11.mit.edu>
289 * alloc.c (ext2fs_new_block): Fix fencepost error in
290 ext2fs_new_block; make sure we don't try to allocate the
291 first block beyond the end of the filesystem.
293 Mon Oct 14 11:00:48 1996 Theodore Ts'o <tytso@rsts-11.mit.edu>
295 * inode.c (check_for_inode_bad_blocks): New function called by
296 get_next_blocks() to avoid reading in bad blocks marked in
297 fs->badblocks. Inodes located in bad blocks are returned
298 by ext2fs_get_next_inode() returns the error code
299 EXT2_ET_BAD_BLOCK_IN_INODE_TABLE.
301 * alloc_tables.c (ext2fs_allocate_tables): New function which
302 performs the part of mke2fs's job of allocating the
305 * test_io.c (test_close): IO manager which is used for testing
308 Sun Oct 13 04:31:57 1996 Theodore Ts'o <tytso@rsts-11.mit.edu>
310 * inode.c (ext2fs_get_next_inode): Separate out the function of
311 setting up for a new block group to get_next_blockgroup().
312 Separate out the function of reading in blocks of the
313 inode table to get_next_blocks().
315 * ext2fs.h: Add the badblocks list to the ext2_filsys entry
317 * badblocks.c (badblocks_list_add, badblocks_list_test): Add
318 blocks to the badblock list in sorted order. This allows
319 badblocks_list_test to be coded using a binary search for
322 Tue Oct 8 02:02:03 1996 Theodore Ts'o <tytso@rsts-11.mit.edu>
324 * Release of E2fsprogs version 1.06
326 Mon Oct 7 00:44:17 1996 Theodore Ts'o <tytso@rsts-11.mit.edu>
328 * ext2fs.h, block.c, closefs.c, dirblock.c, inode.c, native.c,
329 open.c: Change EXT2_SWAP to EXT2_FLAG_SWAP for
332 * closefs.c (ext2fs_flush): If the flag EXT2_MASTER_SB_ONLY is
333 set, then only write out the master superblock.
335 Sun Oct 6 21:45:26 1996 Theodore Ts'o <tytso@rsts-11.mit.edu>
337 * block.c (ext2fs_block_iterate): Fixed bug which caused
338 block_iterate to fail to handle HURD created filesystems;
339 it tested the inode translator field before the inode was
342 Tue Sep 17 14:08:24 1996 Theodore Ts'o <tytso@rsts-11.mit.edu>
344 * initialize.c (ext2fs_initialize): Make sure the description for
345 the inode bitmap is set correctly.
347 * bitmaps.c (ext2fs_allocate_generic_bitmap): Fix minor type typo.
349 Thu Sep 12 15:23:07 1996 Theodore Ts'o <tytso@rsts-11.mit.edu>
351 * Release of E2fsprogs version 1.05
353 Sat Sep 7 07:36:03 1996 Theodore Ts'o <tytso@rsts-11.mit.edu>
355 * initialize.c: Override the kernel's idea of default
356 checkinterval from 0 (never) to 180 days.
358 Wed Aug 28 03:20:03 1996 Theodore Ts'o <tytso@rsts-11.mit.edu>
360 * namei.c (ext2fs_namei_follow): New function which follows
361 symbolic link (if any) at the target.
363 Tue Aug 27 01:48:43 1996 Theodore Ts'o <tytso@rsts-11.mit.edu>
365 * inode.c (ext2fs_read_inode, ext2fs_write_inode): Add support
366 for shortcut function fs->read_inode() and fs->write_inode().
367 Added inode_cache to reduce CPU time spent in doing
370 * swapfs.c (ext2fs_swap_super): Swap the new fields in a V2
373 * namei.c (ext2fs_follow_link): New function.
374 (ext2fs_namei): Extended to have support for chasing
375 symbolic links. ext2fs_namei() still returns an inode
376 which is a symbolic link. Symbolic links are only chased
377 while resolving the containing directory. To chase
378 symbolic links of the final result, use
379 ext2fs_follow_link().
381 Mon Aug 26 23:46:07 1996 Theodore Ts'o <tytso@rsts-11.mit.edu>
383 * ext2_err.et.in: Added new error code EXT2_ET_SYMLINK_LOOP.
385 * bitops.h (ext2fs_set_bit, ext2fs_celar_bit): Use asm inlines
386 provided by Pete A. Zaitcev (zaitcev@lab.sun.mcst.ru).
388 Thu Aug 22 00:40:18 1996 Theodore Ts'o <tytso@rsts-11.mit.edu>
390 * initialize.c (ext2fs_initialize): On systems where the byte
391 order is not i386 compatible, set the swap_byte flag.
393 * inode.c (inocpy_with_swap): Check to see if inode contains a
394 fast symlink before swapping the inode block fields. This
395 required adding a new argument to inocpy_with_swap to
396 determine whether the mode field is in host order or not.
398 Wed Aug 21 00:45:42 1996 Theodore Ts'o <tytso@rsts-11.mit.edu>
400 * bitops.h (ext2fs_set_bit, ext2fs_clear_bit, ext2fs_test_bit): On
401 the sparc, if EXT2_STD_BITOPS set, use the standard
402 i386-compatible bitmask operations, instead on the
403 non-standard native bitmask operators.
405 Fri Aug 9 11:11:35 1996 Theodore Ts'o <tytso@rsts-11.mit.edu>
407 * block.c (ext2fs_block_iterate): Cause block iterator to return
408 the HURD translator block (along with everything else).
409 If the flag BLOCK_FLAG_DATA_ONLY is passed to the block
410 iterator, then don't return any meta data blocks
411 (including the HURD translator).
413 Wed Jul 17 17:13:34 1996 Theodore Ts'o <tytso@rsts-11.mit.edu>
415 * gen_uuid.c: New file, which generates DCE-compatible UUIDs.
417 * uuid.c: New file, containing UUID utility functions.
419 Tue Jul 16 10:19:16 1996 Theodore Ts'o <tytso@rsts-11.mit.edu>
421 * ext2fs.h: Add a definition of the "real" ext2 superblock.
423 Fri May 24 14:54:55 1996 Theodore Ts'o <tytso@rsts-11.mit.edu>
425 * ext2fs.h: Fix erroneous ino_t type used in block_bitmap type.
427 Sun May 19 15:39:03 1996 Theodore Ts'o <tytso@rsts-11.mit.edu>
429 * openfs.c (ext2fs_open): If the blocksize in the superblock is
430 zero, return the error EXT2_ET_CORRUPT_SUPERBLOCK, since
431 that's a basic value that must be correct for the rest of
434 * ext2_err.et.in (EXT2_ET_CORRUPT_SUPERBLOCK): Added new error
437 Thu May 16 11:12:30 1996 Theodore Ts'o <tytso@rsts-11.mit.edu>
439 * Release of E2fsprogs version 1.04
441 Wed Mar 27 00:33:40 1996 <tytso@rsts-11.mit.edu>
443 * Release of E2fsprogs version 1.03
445 Tue Mar 26 12:06:32 1996 <tytso@rsts-11.mit.edu>
447 * bitops.h (ext2fs_set_bit, ext2fs_clear_bit, ext2fs_test_bit):
448 Change the m68k bit numbering for bitmasks to match with
449 the bit numbering used by all other ext2 implementations.
451 Thu Mar 7 03:37:00 1996 <tytso@rsts-11.mit.edu>
453 * inode.c (ext2fs_get_next_inode, ext2fs_close_inode_scan,
454 ext2fs_open_inode_scan): Support dynamically-sized inodes.
456 Wed Mar 6 12:26:29 1996 <tytso@rsts-11.mit.edu>
458 * inode.c (ext2fs_read_inode, ext2fs_write_inode): Support
459 dynamically-sized inodes.
461 * openfs.c (ext2fs_open): Allow dynamic revision filesystem to be
464 Tue Mar 5 03:49:37 1996 <tytso@rsts-11.mit.edu>
466 * initialize.c (ext2fs_initialize): Catch an error condition where
467 the passed in size is *really* too small.
469 * alloc.c (ext2fs_new_inode):
470 * ext2fs.h (EXT2_FIRST_INODE): Add support for dynamic revision to
473 Wed Feb 21 15:56:17 1996 <tytso@rsts-11.mit.edu>
475 * getsize.c (ext2fs_get_device_size): Open the device read-only
476 when trying to determine its size.
478 Wed Jan 31 11:06:08 1996 <tytso@rsts-11.mit.edu>
480 * Release of E2fsprogs version 1.02
482 Sat Dec 9 09:57:50 1995 <tytso@rsts-11.mit.edu>
484 * rw_bitops.c (ext2fs_write_block_bitmap):
485 * bitops.c (ext2fs_test_bit, ext2fs_clear_bit, ext2fs_set_bit):
486 * bitops.h (ext2fs_test_bit, ext2fs_clear_bit, ext2fs_set_bit):
487 Rename {test,set,clear}_bit to ext2fs_{test,set,clear}_bit,
488 to avoid conflicts with with kernel include files. Also
489 rename ADDR and CONST_ADDR to EXT2FS_ADDR and
492 Thu Oct 26 12:09:16 1995 <tytso@rsts-11.mit.edu>
494 * ext2_err.et: Updated message in EXT2_ET_BASE to say version 0.5c
496 * swapfs.c (ext2fs_swap_super): Put an #ifdef check around
497 s_def_resuid and s_def_resgid for backwards compatibility.
499 Fri Oct 20 23:33:31 1995 <tytso@rsts-11.mit.edu>
501 * bitops.h: Added #ifdef's for Sparc.
503 Wed Sep 6 22:14:46 1995 <tytso@rsts-11.mit.edu>
505 * getsize.c: #include <sys/ioctl.h> under Linux to pick up ioctl()
508 * closefs.c: #include <string.h> to pick up memset() declaration
510 Mon Sep 4 21:45:29 1995 Remy Card <card@bbj>
512 * Makefile.in: Added support for BSD shared libraries.
514 * initialize.c (ext2fs_initialize): Correctly set the s_creator_os
517 Mon Sep 4 09:55:30 1995 <tytso@rsts-11.mit.edu>
519 * unix_io.c (unix_open): Add a double check; if the passed in name
520 is NULL, return EXT2_ET_BAD_DEVICE_NAME.
522 * ext2_err.et (EXT2_ET_BAD_DEVICE_NAME): Added new error code
524 Wed Aug 16 15:44:10 1995 <tytso@rsts-11.mit.edu>
526 * inode.c (ext2fs_check_directory): Use LINUX_S_ISDIR instead of
529 Tue Aug 15 13:08:36 1995 <tytso@rsts-11.mit.edu>
531 * getsize.c (ext2fs_get_device_size): Add support for reading the
532 partition size from a BSD disk label.
534 Thu Aug 10 09:33:26 1995 Theodore Y. Ts'o <tytso@lurch.mit.edu>
536 * getsize.c (ext2fs_get_device_size): New function that determins
537 the size of a device. Used by mke2fs and e2fsck.
539 Sat Aug 12 03:09:54 1995 Remy Card <card@bbj>
541 * Makefile.in (install): Install static libraries in $(ulibdir)
542 (/usr/lib on Linux) instead of $(libdir) (/lib on Linux).
544 Wed Aug 9 17:04:23 1995 Theodore Y. Ts'o <tytso@dcl>
546 * bitmaps.c (ext2fs_free_inode_bitmap, ext2fs_free_block_bitmap):
547 Move these functions to freefs.c.
549 * closefs.c (ext2fs_flush): If swapping blocks, clear the group
550 descriptors shadow memory to keep purify quiet. (This
551 also has the nice benefit that the unused portion of the
552 shadow descriptors are zeroed out.)
554 * dirblock.c (ext2fs_write_dir_block): We need to use
555 dirent->rec_len *before* it's byteswapped to find the
556 location of the next directory structure!
558 * alloc.c (ext2fs_new_inode): Fix bug which could potentially
559 cause ext2fs_new_inode to loop infinitely if we're trying
560 to allocate an inode in group #0 and there are no free
561 inodes at all in the system.
563 * closefs.c: #include <errno.h> if it exists.
565 Sun Aug 6 13:27:50 1995 Theodore Y. Ts'o <tytso@lurch.mit.edu>
567 * ext2fs.h (BLOCK_FLAG_HOLE): Added new definition for
568 BLOCK_FLAG_APPEND. Added documentation for the block
571 Sat Aug 5 11:44:05 1995 Theodore Y. Ts'o <tytso@lurch.mit.edu>
573 * Makefile.in (DLL_INSTALL_DIR, ELF_INSTALL_DIR): Set the
574 installation directories correctly.
576 Tue Jul 18 09:27:38 1995 <tytso@rsx-11.mit.edu>
578 * namei.c (process_dir_block):
579 * mkdir.c (ext2fs_mkdir):
580 * expanddir.c (expand_dir_proc): Use ext2fs_{read,write}_dir_block
581 to read/write the directory block.
583 * dirblock.c (ext2fs_read_dir_block), ext2fs_write_dir_block): New
584 file containing functions for reading and writing
585 directory blocks (byte swapping if necesssary)
587 * block.c (block_iterate_ind, block_iterate_dind,
588 block_iterate_tind): Byte swap the block addresses if
589 EXT2_SWAP_BYTES is set (and swap them back before writing
592 * inode.c (inocpy_with_swap): New function.
593 (ext2fs_get_next_inode, ext2fs_read_inode, ext2fs_write_inode):
594 Call inocpy_with_swap if EXT2_SWAP_BYTES if set.
596 * closefs.c (ext2fs_flush): If EXT2_SWAP_BYTES is set, then swap
597 the superblock and group descriptors before writing it out.
599 * openfs.c (ext2fs_open): If the magic number is byte-swapped,
600 then set the EXT2_SWAP_BYTES and byte-swap the superblock
601 and group descriptors.
603 * swapfs.c (ext2fs_swap_super, ext2fs_swap_group_desc): New functions
604 to desp ext2 filesystem structures.
606 * bitops.c (set_bit, clear_bit, test_bit): Use modifications
607 supplied by Pete A. Zaitcev so that the C language
608 versions of these functions are more portable. They will
609 now work on both little and big endian systems, and the
610 assumption that 32-bit integers are used is gone.
612 * bitops.h (ext2_swab16, ext2_swab32): Added new functions for
615 * ext2fs.h (EXT2_SWAP_BYTES): Add new flag which indicates that
616 byte swapping should take place.
618 Sun Jul 16 06:21:43 1995 <tytso@rsx-11.mit.edu>
620 * Makefile.in, cmp_bitmaps.c (ext2fs_compare_block_bitmap_end,
621 ext2fs_compare_inode_bitmap_end): Added new file
622 containing routines to compare bitmaps.
624 * ext2_err.et (EXT2_ET_NEQ_BLOCK_BITMAP, EXT2_ET_NEQ_INODE_BITMAP):
625 Added new error codes.
627 Sat Jul 15 04:23:37 1995 <tytso@rsx-11.mit.edu>
629 * inode.c (ext2fs_get_next_inode): Don't check scan->inode_buffer;
630 if the magic number is correct, it will be allocated.
632 Fri Jul 14 19:02:59 1995 <tytso@rsx-11.mit.edu>
634 * block.c (block_iterate_ind, block_iterate_dind,
635 block_iterate_tind): Don't recompute block_nr each loop;
636 just increment it! Factor check of BLOCK_FLAG_APPEND out
637 of the loop. Factor mask of BLOCK_CHANGED into changed
638 variable out of the loop. (block_iterate_ind, in
639 particular, gets called a lot, so every little
642 Thu Jul 13 08:02:45 1995 <tytso@rsx-11.mit.edu>
644 * block.c (block_iterate_ind, block_iterate_dind,
645 block_iterate_tind): Precompute limit of loop to speed up
646 block_iterate_ind and company.
648 * bitops.h (ext2fs_fast_mark_block_bitmap,
649 ext2fs_fast_unmark_block_bitmap, ext2fs_fast_test_block_bitmap,
650 ext2fs_fast_mark_inode_bitmap, ext2fs_fast_unmark_inode_bitmap,
651 ext2fs_fast_test_inode_bitmap): Add fast version of these
652 functions, which don't do range checking.
654 * bitops.h (ext2fs_get_block_bitmap_start,
655 ext2fs_get_inode_bitmap_start, ext2fs_get_block_bitmap_end,
656 ext2fs_get_inode_bitmap_end): Add new accessor functions
657 which return the start and end points of the bitmaps.
659 Tue Jul 11 18:59:41 1995 <tytso@rsx-11.mit.edu>
661 * llseek.c (ext2_llseek): If the offset is small enough, use lseek
662 instead of llseek. The errno if the offset is too large
663 and lseek is not supported should be EINVAL, not -EINVAL.
665 Thu Jun 15 23:43:02 1995 Remy Card <card@bbj>
667 * Makefile.in: Added support for ELF shared libraries.
668 Fixed typos in the compilation rules.
669 (distclean): Added Makefile.
671 * llseek.c (llseek): New function, if llseek() does not exist in the
673 (ext2_llseek): Changed to call llseek().
675 Mon Jun 12 08:29:07 1995 Theodore Y. Ts'o <tytso@lurch.mit.edu>
677 * ext2fs.h: Use __u32 to define blk_t, instead of unsigned long.
679 Sun Jun 11 15:02:54 1995 Theodore Y. Ts'o <tytso@lurch.mit.edu>
681 * mkdir.c (ext2fs_mkdir): Use LINUX_S_IFDIR instead of S_IFDIR.
683 * ext2fs.h (LINUX_S_IFDIR): Define a linux specific versions of
684 the S_*, which are normally defined in <sys/stat.h>. This
685 allows us to compile e2fsprogs on a non-Linux system,
686 which may have a different value for S_IFDIR.
688 Sat Jun 10 23:47:05 1995 Theodore Y. Ts'o <tytso@lurch.mit.edu>
690 * bitops.c (clear_bit, set_bit): Remove calls to cli() and sti();
691 this is a user-mode application!
693 Thu Jun 8 13:13:22 1995 Miles Bader <miles@churchy.gnu.ai.mit.edu>
695 * llseek.c: Put the include of <linux/unistd.h> inside the #ifdef
696 __linux__ so that non-linux systems won't see it.
698 * alloc.c: Include <errno.h> if possible.
699 * badblocks.c: Ditto.
703 * expanddir.c: Ditto.
704 * get_pathname.c: Ditto.
705 * initialize.c: Ditto.
712 * rw_bitmaps.c: Ditto.
715 * Makefile.in: Rewritten to conform to GNU coding standards and
716 support separate compilation directories.
718 Thu May 11 04:13:12 1995 <tytso@rsx-11.mit.edu>
720 * initialize.c (ext2fs_initialize): Don't allow more than one
721 bitmaps's worth of inodes in a group.
723 Sat Mar 11 14:07:11 1995 Theodore Y. Ts'o <tytso@localhost>
725 * llseek.c (ext2_llseek): Added error checking to the llseek()
726 compat code to protect against overflow. This only
727 applies to 1.0 and early 1.1 kernels, which don't support
728 the llseek() system call.
730 Thu Nov 24 16:29:00 1994 Theodore Y. Ts'o (tytso@rt-11)
732 * unix_io.c (unix_open): Initialize the read_error and write_error
733 io_channel pointers to be null.
735 * bb_inode.c (clear_bad_block_proc): If an illegal block number is
736 found, clear it but don't try to update the filesystem
737 accounting information, since that's hopeless anyway.
739 * block.c (bloblock_iterate_ind, bloblock_iterate_dind,
740 bloblock_iterate_tind): Check to see if the indirect blocks are
741 valid before trying to read them.
743 * ext2_err.et (EXT2_ET_BAD_IND_BLOCK, EX2_ET_BAD_DIND_BLOCK,
744 EXT2_ET_BAD_TIND_BLOCK): Add new error codes.
746 * bitops.h (ext2fs_mark_block_bitmap, ext2fs_unmark_block_bitmap,
747 ext2fs_test_block_bitmap, ext2fs_mark_inode_bitmap,
748 ext2fs_unmark_inode_bitmap, ext2fs_test_inode_bitmap): If an
749 illegal block or inode number is passed in, return instead
750 of trying to test, set, or clear the bit.
752 Mon Nov 7 21:32:33 1994 Remy Card <card@bbj>
754 * Makefile: Added a dummy install target in case shared libraries
757 Mon Oct 24 14:11:44 1994 (tytso@rsx-11)
759 * bitmaps.c (ext2fs_allocate_block_bitmap): Fix calculation of how
760 the real last block of the bitmap should be calculated.
762 Wed Sep 7 10:05:36 1994 (tytso@rsx-11)
764 * bitmaps.c (ext2fs_fudge_inode_bitmap_end,
765 ext2fs_fudge_block_bitmap_end, ext2fs_clear_inode_bitmap,
766 ext2fs_clear_block_bitmap, ext2fs_free_inode_bitmap,
767 ext2fs_free_block_bitmap): Add magic number checking for
768 the inode and block bitmaps.
770 * bitmaps.c (ext2fs_allocate_block_bitmap): Fix to set the correct
771 magic number for a block bitmap instead of an inode bitmap.
773 * inode.c (ext2fs_close_inode_scan, ext2fs_get_next_inode): Add
774 magic number checking for the inode_scan structure.
776 * badblocks.c (badblocks_list_free, badblocks_list_add,
777 badblocks_list_test, badblocks_list_iterate_begin,
778 badblocks_list_iterate, badblocks_list_iterate_end): Add
779 magic number checking for the badblocks_list and
780 badblocks_iterate structures.
782 * ext2_err.et (EXT2_ET_MAGIC_UNIX_IO_CHANNEL):
783 * unix_io.c (unix_open, unix_close, unix_set_blksize, unix_read_blk,
784 unix_write_blk, unix_flush): Add magic number checking
785 both for io_channel structure and unix_private_data
788 * openfs.c (ext2fs_open): Add check for io_manager structure's
791 * rw_bitmaps.c (ext2fs_write_inode_bitmap, ext2fs_write_block_bitmap,
792 ext2fs_read_inode_bitmap, ext2fs_read_block_bitmap,
793 ext2fs_read_bitmaps, ext2fs_write_bitmaps):
794 * read_bb.c (ext2fs_read_bb_inode):
795 * read_bb_file.c (ext2fs_read_bb_FILE):
796 * newdir.c (ext2fs_new_dir_block):
797 * namei.c (ext2fs_dir_iterate, ext2fs_lookup, ext2fs_namei):
798 * link.c (ext2fs_link, ext2fs_unlink):
799 * inode.c (ext2fs_open_inode_scan, ext2fs_read_inode,
800 ext2fs_write_inode, ext2fs_get_blocks,
801 ext2fs_check_directory):
802 * get_pathname.c (ext2fs_get_pathname):
803 * expanddir.c (ext2fs_expand_dir):
804 * block.c (ext2fs_block_iterate):
805 * bitmaps.c (ext2fs_allocate_inode_bitmap,
806 ext2fs_allocate_block_bitmap):
807 * bb_inode.c (ext2fs_update_bb_inode):
808 * alloc.c (ext2fs_new_inode,ext2fs_new_block,ext2fs_get_free_blocks):
809 * check_desc.c (ext2fs_check_desc):
810 * closefs.c (ext2fs_close, ext2fs_flush):
811 * freefs.c (ext2fs_free): Add check for ext2_filsys magic number.
816 * check_desc.c (ext2fs_check_desc): Move ext2fs_check_desc from
817 openfs.c into its own file.
819 * ext2fs.h (EXT2_CHECK_MAGIC): Added macro for checking for
820 structure magic numbers.
822 * closefs.c (ext2fs_flush): Folded in Remy Card's changes to clear
823 the EXT2_VALID_FS flag in the backup superblock blocks, so that if
824 someone uses the -b option to specify the use of the backup
825 superblock --- this usually means that the main superblock is
829 * ext2_err.et (EXT2_ET_REV_TOO_HIGH):
830 * openfs.c (ext2fs_open): Folded in Remy Card's changes to add a
831 revision level to the superblock.
833 Sun Aug 21 00:50:08 1994 Theodore Y. Ts'o (tytso@rt-11)
840 * initialize.c: Completely revamped the inode and block bitmap
841 structures, so that they can be better chance of being extensible
842 in a shared library. They are now their own type, instead of
843 being a char *. Also, the function signatures of
844 ext2fs_test_block_bitmap, ext2fs_mark_block_bitmap,
845 ext2fs_unmark_block_bitmap, ext2fs_test_inode_bitmap,
846 ext2fs_mark_inode_bitmap, and ext2fs_unmark_inode_bitmap were
847 changed to eliminate the ext2_filsys argument, since it is no
850 Wed Aug 17 21:46:44 1994 Remy Card (card@bbj)
852 * unix_io.c (unix_read_blk and unix_write_blk): use the llseek
853 system call if available.
855 * llseek.c: new file. This is the stub calling the llseek system
856 call which allows supports for 2GB+ file systems.
858 * initialize.c (ext2fs_initialize): Ext2fs_initialize now stores
859 the creator operating system.
861 Wed Aug 17 10:03:24 1994 Theodore Y. Ts'o (tytso@rt-11)
863 * initialize.c (ext2fs_initialize): Ext2fs_initialize now sets up
864 the group descriptor statistics in addition to everything else.
865 This relieves mke2fs of the responsibility of doing it.
867 * bitops.c, bitops.h: Add assembly inline functions for the 68000.
868 Added a new #define, _EXT2_HAVE_ASM_BITOPS_ to control whether or
869 not the generic C function equivalents should be included or not.
871 * openfs.c (ext2fs_open): If a superblock is specified, then use
872 the backup group descriptors that go along with this superblock,
873 instead of using the primary group descriptors. This allows
874 e2fsck to recover filesystems where the primary group descriptors