From 464df1d5e5ab1322e2dd0a7796939fff1aeefa9a Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 17:49:25 +0200 Subject: Adding upstream version 1.47.0. Signed-off-by: Daniel Baumann --- doc/RelNotes/v1.20.txt | 206 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 206 insertions(+) create mode 100644 doc/RelNotes/v1.20.txt (limited to 'doc/RelNotes/v1.20.txt') diff --git a/doc/RelNotes/v1.20.txt b/doc/RelNotes/v1.20.txt new file mode 100644 index 0000000..c2423ad --- /dev/null +++ b/doc/RelNotes/v1.20.txt @@ -0,0 +1,206 @@ +E2fsprogs 1.20 (May 20, 2001) +============================= + +Add support for replaying the ext3 journal purely in user mode, +including handling the orphaned inode list. Used code contributed by +Andreas Dilger, with bug fixes and the orphaned inode handling done +by Theodore Ts'o. + +The mke2fs and tune2fs programs can create or modify a filesystem to +include an ext3 journal. Tune2fs also can be used to remove an ext3 +journal from a filesystem. + +E2fsck will now check for the existence of a linked list of orphan +inodes in the superblock, and clear those inodes before starting the +rest of the filesystem check (but after the journal playback). + +E2fsck now validates the file descriptor passed to the -C option, +which saves against the completion bar getting written to an +unexpected location, such as the disk being checked. (Debian +bug/wishlist #55220) + +E2fsck will now bump the filesystem revision number from zero to one +if any of the compatibility bits are set. + +Fixed a bug where a badly corrupted directory on a big endian system +could cause e2fsck to die with a bus error. The +ext2fs_read_dir_block() and ext2fs_process_dir_block() functions in +the ext2 library now does alignment sanity checks on the rec_len field +of the directory entry before using it. + +The ext2 library has been enhanced to make tune2fs safe to run on +mounted filesystems. (Users could usually get away with using tune2fs +on mounted filesystems before, but with the advent of ext3 and +journalling, it became important to make tune2fs was *really* safe for +use even when the filesystem being modified is mounted.) E2label is +now implemented by tune2fs using an argv[0] dispatch, so that e2label +is also now safe for use on mounted filesystems. + +Added a new program, e2image, which creates a backup of critical ext2 +filesystem data structures. The generated image file can be examined +using dumpe2fs and debugfs. In the future, e2fsck will be able to use +the image file to help recover very badly damaged filesystems. + +Fixed a number of LFS bugs in e2fsck; very, very large (> 2**42) files +no longer cause e2fsck to bomb out. Also treat files > 2GB as being +large file when deciding whether or not the filesystem has large files. + +Fixed lsattr and chattr so that they work correctly on large files. +(Fixes Debian bug #72690.) + +Removed limitation in get_device_size() which imposed a one terabyte +filesystem limitation. (Most 2.2 kernels still have a signed int +problem which cause 1 TB block device limitation. Fortunately, the +kernel patches to fix this are much easier than fixing the 2TB +limitation in the kernel. :-) + +A max_mount_count of zero is now treated as if no mount count were +set. (Previously, no mount count was indicated by using -1, and a +mount count of zero caused e2fsck to always be run.) + +Mke2fs supports two new filesystem types largefile and largefile4. + +Mke2fs now adds some randomness in s_max_mount_count so that multiple +filesystems won't be all checked at the same time under normal +operations. + +Fixed bug in the progress bar printing code which could cause e2fsck +to core dump on an illegal filesystem. + +Fixed bug in fsck which could allow more than one instance of e2fsck +to be printing a progress bar. (Debian bug #65267) + +Fsck using a UUID or a LABEL specifier will work even if devfs is +compiled into the kernel and not mounted. If the pathnames in +/proc/partitions are incorrect, fsck will search /dev for the correct +device (using the new ext2fs_find_block_device library function). +Fsck now also checks the RAID devices first so that they are properly +found when they are in use. Support has also been added to support +additional IDE disks and the DAC 960 device names. (Debian bug #94159) + +Fixed a bug in fsck which caused it not deal properly with 16 +byte long filesystem labels. + +Fsck's -t option has been made a lot more flexible. The semantics for +what happens if a comma-separated list to fsck has been regularized, +and it is now possible to filter what filesystems will get checked +based what is in the filesystem's fstab entry's option field. (Debian +bug #89483.) + +The dumpe2fs program can now print out the group description +information in hex, and also prints the location of the superblock and +block group descriptor for those block groups that have them. + +Mke2fs now clears the ext2 superblock before it starts creating a +filesystem, so that the superblock magic number is only written if the +filesystem creation process successfully completes. + +The debugfs program's stat command now pretty-prints the blocks used +by an inode so that it's more compact and informative. + +The debugfs stats command now uses the same libe2p code (which is used +by dumpe2fs) to print the superblock header information. This is more +complete, and it avoids a bit of code duplication. + +Added a new debugfs command, set_super_value (ssv) which allows the +user to set arbitrary superblock fields. + +Debugfs was extended to support inode numbers in hex (by prefixing +them with 0x), and so that modify_inode can set the inode generation +number. Also, there is now a new function command called logdump +which will dump an ext3 journal. + +Fixed a bug in debugfs so that quitting out of the pager doesn't kill +debugfs. + +Debugfs's dump command now stops immediately upon reporting a disk +read error. (Fixed a bug in ext2fs_file_read library routine which +caused debugfs not to stop.) (Debian bug #79163) + +On systems with /proc/mounts (mainly Linux systems), /proc/mounts is +checked before /etc/mtab is used, since /proc/mounts is more likely to +be accurate. + +Added portability fixes for Solaris and Linux/ia64. + +Various manual pages were clarified and cleaned up. (Fixed debian +bugs #63442, #67446, and #87216) + + +Programmer's notes: +------------------- + +The e2fsck message printer now supports %Iu and %Ig, which will print +out the inode's user and group owners, respectively. + +E2fsprogs now includes its own version of include/linux/ext2_fs.h, so +that no longer dependent on the system having the correct version of +the kernel header files. + +Added a new function to libext2, ext2fs_find_block_device(), which +searches the system (i.e., /dev, /devfs, /devices) for a pathname to a +device given its device number. + +Added a new function to libext2, ext2fs_sync_device, which centralizes +all of the places which might try to use the BLKFLSBUF or FDFLUSH +ioctls (and usually failing to define them since the system header +files don't usually do this for us, and we're trying to avoid usage of +kernel include files now). + +Added new utility programs in tests/progs: random_exercise and +hold_inode. They aren't built by default; they're useful for +exercising ext3 filesystem code. + +Added a new ext2 filesystem flag, EXT2_FLAG_SUPER_ONLY, which causes +the filesystem close functions to only update the superblock, and to +not touch the block group descriptors. Needed by tune2fs when +modifying a mounted filesystem. + +Got rid of struct ext2fs_sb and replaced it with the standard struct +ext2_super_block from include/linux/ext2_fs.h. Note: this may break +source (but not binary) compatibility of some users of the ext2 +library. Those applications should just simply do a global search and +replace of struct ext2fs_sb with struct ext2_super_block, and include +the new header file which defines it. + +The ino_t type has been renamed ext2_ino_t to protect applications +that attempt to compile -D_FILE_OFFSET_BITS=64, since this +inexplicably changes ino_t(!?). So we use ext2_ino_t to avoid an +unexpected ABI change. + +The Makefiles have been reworked so that "make check" can be run from +the top-level Makefile. + +Fix general gcc -Wall complaints and removed dead code. + +Remove use of NOARGS, because we assume everyone does ANSI C these +days. + +Added build-rpm script from sct. + +New functions ext2fs_image_{inode,super,bitmap}_{read,write} added +to support e2image. + +New function ext2fs_flush_icache which must be called if the +application program modifies the inode table blocks without going +through ext2fs_write_inode() interface. + +New ext2fs_check_mount_point() function, which will return the mount +point of a device if mounted. + +The io_channel abstraction now has an optional interface, +io_channel_write_range, which allows specific byte ranges to be +written. + +The unix_io IO channel now supports write-through caching, so that +journal creation is more efficient. + +Added x86 assembly language routines to support byte swapping, to +reduce executable size. + +Fixed bug in the utility program subst so that it's possible to +replace a substitution variable with a zero-length string. + +Fixed numbering e2fsck pass1 problem numbers; an extra zero had +slipped into some of the problem number. + -- cgit v1.2.3