mirror of https://github.com/vitalif/e2fsprogs
Update release notes for a 1.43-WIP release (18-May-2015)
Signed-off-by: Theodore Ts'o <tytso@mit.edu>debian
Theodore Ts'o
parent
cd27af3ecb
commit
99336932d6
155
RELEASE-NOTES
155
RELEASE-NOTES
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E2fsprogs 1.43-WIP (December 28, 2013) -- 38cc555a5fc
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======================================
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E2fsprogs 1.43-WIP (May 18, 2015) -- cd27af3ecb83
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=================================================
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Add support for the ext4 metadata checksum feature.
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Add support for the ext4 metadata checksum, inline data, encryption,
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and read-only features.
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Mke2fs will now create file systems with the metadata_csum and 64bit
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features enabled by default.
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Support for the very old, experimental, and never-added-to-mainline
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compression feature has been removed.
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Debugfs can now modify extended attributes and journal transactions.
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The resize2fs command can now convert file systems between 64-bit and
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32-bit mode.
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We now use a new e2undo file format which is much more efficient and
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faster than the old tdb-based scheme. Since it so much faster,
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e2fsck, tune2fs, debugfs, and resize2fs now also can support using
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creating an undo file.
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The mke2fs command can now set the error behavior when initializing
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the file system (so the administrator doesn't have to issue a separate
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tune2fs -e command).
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E2fsck is now much more paranoid about not freeing or corrupting
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critical metadata blocks, such as inode table blocks, even if
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corrupted indirect blocks or extent trees point at these blocks.
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E2fsck now prints block ranges in pass1b instead of listing all of the
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blocks exhaustively.
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E2fsck will try to expand the root directory if the lost+found can't
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be linked to the root directory. Also, offer to use the root
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directory if lost+found can't be created.
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E2fsck is now more paranoid handling corrupted extent trees as well as
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corrupted journals.
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E2fsck can now rebuild extent trees, either (a) to optimize them, (b)
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to recover from a corrupted extent tree, or (c) to convert
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block-mapped inodes to use extents.
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E2fsck now has a readahead mechanism which can significantly speed its
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performance, especially on RAID arrays.
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E2fsck now has a "yes to all" option which the user can give if she is
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tired of answering 'y' to a very large number of questions.
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E2fsck will now ignore the badblocks inode if the contents of the
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badblocks inode indicate that the portion inode table containing the
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badblocks inode is bad. (We must go deeper...)
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E2fsck can now correctly fix directory with holes on bigalloc file
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systems.
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Fixed a bug in e2fsck to avoid overrunning a buffer containing jbd2
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revoke records if the journal is corrupted.
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Fixed a bug in e2fsck which could cause it loop forever if a special
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inode has too many invalid block mappings.
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Fixed a bug in e2fsck which could cause pass1b/c/d processing to get
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confused if an attempt to allocate a block can't find any free space
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in the file system.
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E2fsck will no longer try to force rewrite blocks located beyond the
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file system.
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Fixed a bug in resize2fs which could lead to resize2fs crashing or a
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corrupted file system if the file system is almost completely full
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when trying grow a file system and we need to allocate blocks to grow
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the block group descriptors.
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Fixed a bug in resize2fs which could cause it to get fooled trying to
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determinthe the RAID array's stride when flex_bg is enabled.
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The dumpe2fs output has been improved so it is cleaner and always fits
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within 80 columns. Also added a more easily machine-parsable output
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of dumpe2fs.
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The mke2fs program can now pre-populate a file system from a directory
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hierarchy using the -d option.
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The mke2fs program now skips zeroing inode table blocks if they were
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already zeroed using the discard feature.
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Check to make sure file system features which can not be supported by
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HURD are not enabled if the file system is created to be
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HURD-compatible.
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Added a new e2fuzz command that will fuzz an ext4 image for testing
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purposes.
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The debugfs logdump command can now deal with 64-bit revoke tables
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correctly. Also, "logdump -O" will print the old log contents (before
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the journal was replayed).
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The debugfs bmap command can now be used to set or allocate a physical
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block.
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Fixed a bug so "filefrag -B -e -v" does not return a separate entry
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for each block.
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The file I/O functions now correctly handle inodes containing
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uninitialized blocks.
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Fix a bug in tune2fs so that removing uninit_bg feature on a bigalloc
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file system won't result in corrupted block bitmaps.
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Programmer's Notes
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------------------
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Fixed coverity, sparce gcc -Wall, and clang warnings/nits.
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Added Android build files so that e2fsprogs can be built in the
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Android source tree.
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Reduce the use of libc functions in libext2fs that may not be present
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in the boot loader environment, at least for those functions that are
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needed by boot loadsers such as yaboot.
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Developers can now overide the debugging and optimization flags by
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redefining the CFLAGS makefile macro.
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The mke2fs command will now ask the user for confirmation if block
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device or image file contains an existing file system image, and
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stdout and stdin are connected to a tty.
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The libext2fs library now picks a more intelligent goal block when
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doing block allocations.
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The libext2fs library will now automatically set the BLOCK_UNINT flag
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if all of the blocks in a block group are free, to speed up future
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e2fsck and dumpe2fs operations on the file system.
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Add two new functions ext2fs_new_range() and ext2fs_alloc_range() to
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libext2fs.
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The ext2fs_zero_blocks() command will use FALLOC_FL_ZERO_RANGE for
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file-based images.
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The ext2fs_bmap() function supports new flags BMAP_UNINIT and
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BMAP_ZERO.
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The ext2fs_new_block2() function will now call the alloc_block hook
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before checking fs->block_map.
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Support for the MMP feature can now be disabled at compile time.
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Added support to manipulate extended attributes to libext2fs.
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Added a lot of new regression tests.
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Added endian annotations so it's possible to scan e2fsprogs for endian
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problems using a static code analyzer.
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Fixed memory leaks in libext2fs.
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The e2fsck jbd2 handling code has been resynced with the 3.16 kernel.
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There is now a script in the contrib directory which automates most of
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the resync process.
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The build system will now run cppcheck (a static code analysis tool)
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via "make C=1"
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E2fsprogs 1.42.13 (May 17, 2015)
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================================
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@ -1,3 +1,18 @@
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e2fsprogs (1.43~WIP-2015-05-18-1) unstable; urgency=low
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* Merge in updates from the maint branch (changes from 1.42.13)
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* Add support for file encryption feature
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* Mke2fs will now create file systems with metadata_csum and 64bit
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enabled by default.
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* The resize2fs command can now convert file systems between 64-bit
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and 32-bit mode.
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* The new undo file format is much faster/efficent than before
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* E2fsck now has readahead support to speed up its behavior on RAID
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arrays.
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* E2fsck can now rebuild/optimize inode extent trees
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-- Theodore Y. Ts'o <tytso@mit.edu> Mon, 18 May 2015 01:47:43 -0400
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e2fsprogs (1.42.13-1) unstable; urgency=low
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* New upstream version
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