614 lines
27 KiB
Plaintext
614 lines
27 KiB
Plaintext
SQUASHFS CHANGE LOG
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4.3 12 MAY 2014 New compressor options, new Mksquashfs/Unsquashfs
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functionality, duplicate checking optimisations,
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stability improvements (option/file parsing,
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buffer/memory overflow checks, filesystem hardening
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on corrupted filesystems), CVE fixes.
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Too many changes to do the traditional custom changelog. But, this
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is now unnecessary, so instead list most significant 15% of commits
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from git changelog in chronological order.
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- unsquashfs: add checks for corrupted data in opendir functions
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- unsquashfs: completely empty filesystems incorrectly generate an error
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- unsquashfs: fix open file limit
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- mksquashfs: Use linked list to store directory entries rather
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- mksquashfs: Remove qsort and add a bottom up linked list merge sort
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- mksquashfs: optimise lookup_inode2() for dirs
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- pseudo: fix handling of modify pseudo files
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- pseudo: fix handling of directory pseudo files
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- xattr: Fix ERROR() so that it is synchronised with the progress bar
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- mksquashfs/sort: Fix INFO() so that it is synced with the progress bar
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- mksquashfs: Add -progress to force progress bar when using -info
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- error.h: consolidate the various error macros into one header file
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- mksquashfs: fix stack overflow in write_fragment_table()
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- mksquashfs: move list allocation from off the stack
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- unsquashfs: fix oversight in directory permission setting
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- mksquashfs: dynamically allocate recovery_file
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- mksquashfs: dynamically allocate buffer in subpathname()
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- mksquashfs: dynamically allocate buffer in pathname()
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- unsquashfs: fix CVE-2012-4024
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- unsquashfs: fix CVE-2012-4025
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- mksquashfs: fix potential stack overflow in get_component()
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- mksquashfs: add parse_number() helper for numeric command line options
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- mksquasfs: check return value of fstat() in reader_read_file()
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- mksquashfs: dynamically allocate filename in old_add_exclude()
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- unsquashfs: dynamically allocate pathname in dir_scan()
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- unsquashfs: dynamically allocate pathname in pre_scan()
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- sort: dynamically allocate filename in add_sort_list()
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- mksquashfs: fix dir_scan() exit if lstat of source directory fails
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- pseudo: fix memory leak in read_pseudo_def() if exec_file() fails
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- pseudo: dynamically allocate path in dump_pseudo()
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- mksquashfs: dynamically allocate path in display_path2()
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- mksquashfs: dynamically allocate b_buffer in getbase()
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- pseudo: fix potential stack overflow in get_component()
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- pseudo: avoid buffer overflow in read_pseudo_def() using sscanf()
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- pseudo: dynamically allocate filename in exec_file()
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- pseudo: avoid buffer overflow in read_sort_file() using fscanf()
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- sort: tighten up sort file parsing
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- unsquashfs: fix name under-allocation in process_extract_files()
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- unsquashfs: avoid buffer overflow in print_filename() using sprintf()
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- Fix some limits in the file parsing routines
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- pseudo: Rewrite pseudo file processing
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- read_fs: fix small memory leaks in read_filesystem()
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- mksquashfs: fix fclose leak in reader_read_file() on I/O error
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- mksquashfs: fix frag struct leak in write_file_{process|blocks|frag}
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- unsquashfs_xattr: fix memory leak in write_xattr()
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- read_xattrs: fix xattr free in get_xattr() in error path
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- unsquashfs: add -user-xattrs option to only extract user.xxx xattrs
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- unsquashfs: add code to only print "not superuser" error message once
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- unsquashfs: check for integer overflow in user input
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- mksquashfs: check for integer overflow in user input
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- mksquashfs: fix "new" variable leak in dir_scan1()
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- read_fs: prevent buffer {over|under}flow in read_block() with
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corrupted filesystems
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- read_fs: check metadata blocks are expected size in scan_inode_table()
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- read_fs: check the root inode block is found in scan_inode_table()
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- read_fs: Further harden scan_inode_table() against corrupted
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filesystems
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- unsquashfs: prevent buffer {over|under}flow in read_block() with
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corrupted filesystems
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- read_xattrs: harden xattr data reading against corrupted filesystems
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- unsquash-[23]: harden frag table reading against corrupted filesystems
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- unsquash-4.c: harden uid/gid & frag table reading against corruption
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- unsquashfs: harden inode/directory table reading against corruption
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- mksquashfs: improve out of space in output filesystem handling
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- mksquashfs: flag lseek error in writer as probable out of space
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- mksquashfs: flag lseek error in write_destination as probable out of
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space
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- mksquashfs: print file being squashed when ^\ (SIGQUIT) typed
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- mksquashfs: make EXIT_MKSQUASHFS() etc restore via new restore thread
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- mksquashfs: fix recursive restore failure check
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- info: dump queue and cache status if ^\ hit twice within one second
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- mksquashfs: fix rare race condition in "locked fragment" queueing
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- lz4: add experimental support for lz4 compression
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- lz4: add support for lz4 "high compression"
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- lzo_wrapper: new implementation with compression options
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- gzip_wrapper: add compression options
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- mksquashfs: redo -comp <compressor> parsing
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- mksquashfs: display compressor options when -X option isn't recognised
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- mksquashfs: add -Xhelp option
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- mksquashfs/unsquashfs: fix mtime signedness
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- Mksquashfs: optimise duplicate checking when appending
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- Mksquashfs: introduce additional per CPU fragment process threads
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- Mksquashfs: significantly optimise fragment duplicate checking
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- read_fs: scan_inode_table(), fix memory leak on filesystem corruption
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- pseudo: add_pseudo(), fix use of freed variable
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- mksquashfs/unsquashfs: exclude/extract/pseudo files, fix handling of
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leaf name
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- mksquashfs: rewrite default queue size so it's based on physical mem
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- mksquashfs: add a new -mem <mbytes> option
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- mksquashfs: fix limit on the number of dynamic pseudo files
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- mksquashfs: make -mem take a normal byte value, optionally with a
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K, M or G
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4.2 28 FEB 2011 XZ compression, and compression options support
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1. Filesystem improvements:
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1.1 Added XZ compression
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1.2 Added compression options support
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2. Miscellaneous improvements/bug fixes
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1.1 Add missing NO_XATTR filesystem flag to indicate no-xattrs
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option was specified and no xattrs should be stored when
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appending.
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1.2 Add suppport in Unquashfs -stat option for displaying
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NO_XATTR flag.
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1.3 Remove checkdata entry from Unsquashfs -stat option if a 4.0
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filesystem - checkdata is no longer supported.
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1.4 Fix appending bug when appending to an empty filesystem - this
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would be incorrectly treated as an error.
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1.5 Use glibc sys/xattr.h include rather than using attr/xattr.h
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which isn't present by default on some distributions.
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1.6 Unsquashfs, fix block calculation error with regular files when
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file size is between 2^32-block_size+1 and 2^32-1.
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1.7 Unsquashfs, fix sparse file writing when holes are larger than
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2^31-1.
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1.8 Add external CFLAGS and LDFLAGS support to Makefile, and allow
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build options to be specified on command line. Also don't
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over-write passed in CFLAGS definition.
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4.1 19 SEPT 2010 Major filesystem and tools improvements
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1. Filesystem improvements:
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1.1 Extended attribute support
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1.2 New compression framework
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1.3 Support for LZO compression
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1.4 Support for LZMA compression (not yet in mainline)
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2. Mksquashfs improvements:
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1.1 Enhanced pseudo file support
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1.2 New options for choosing compression algorithm used
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1.3 New options for controlling extended attributes
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1.4 Fix misalignment issues with memcpy etc. seen on ARM
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1.5 Fix floating point error in progress_bar when max == 0
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1.6 Removed use of get_nproc() call unavailable in ulibc
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1.7 Reorganised help text
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3. Unsquashfs improvements:
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1.1 New options for controlling extended attributes
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1.2 Fix misalignment issues with memcpy etc. seen on ARM
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1.3 Fix floating point error in progress_bar when max == 0
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1.4 Removed use of get_nproc() call unavailable in ulibc
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4.0 5 APR 2009 Major filesystems improvements
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1. Kernel code improvements:
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1.1 Fixed little endian layout adopted. All swapping macros
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removed, and in-line swapping added for big-endian
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architectures.
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1.2 Kernel code substantially improved and restructured.
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1.3 Kernel code split into separate files along functional lines.
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1.4 Vmalloc usage removed, and code changed to use separately
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allocated 4K buffers
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2. Unsquashfs improvements:
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2.1 Support for 4.0 filesystems added.
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2.2 Swapping macros rewritten.
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2.3 Unsquashfs code restructured and split into separate files.
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3. Mksquashfs improvements:
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3.1 Swapping macros rewritten. Fixed little-endian layout allows
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code to be optimised and only added at compile time for
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big endian systems.
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3.2 Support for pseudo files added.
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3.4 26 AUG 2008 Performance improvements to Unsquashfs, Mksquashfs
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and the kernel code. Plus many small bug fixes.
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1. Kernel code improvements:
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1.1 Internal Squashfs kernel metadata and fragment cache
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implementations have been merged and optimised. Spinlocks are
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now used, locks are held for smaller periods and wakeups have
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been minimised. Small race condition fixed where if two or
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more processes tried to read the same cache block
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simultaneously they would both read and decompress it. 10-20%+
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speed improvement has been seen on tests.
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1.2 NFS export code rewritten following VFS changes in
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linux-2.6.24.
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1.3 New patches for linux-2.6.25, linux-2.6.26, and linux-2.6.27.
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Fixed patch for linux-2.6.24.
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1.4 Fixed small buffer_head leak in squashfs_read_data when
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handling badly corrupted filesystems.
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1.5 Fixed bug in get_dir_index_using_offset.
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2. Unsquashfs improvements:
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2.1 Unsquashfs has been parallelised. Filesystem reading, writing
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and decompression is now multi-threaded. Up to 40% speed
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improvement seen on tests.
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2.2 Unsquashfs now has a progress bar. Use -no-progress to
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disable it.
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2.3 Fixed small bug where unistd.h wasn't being included on
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some distributions, leading to lseek being used rather than
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lseek64 - which meant on these distributions Unsquashfs
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couldn't unsquash filesystems larger than 4GB.
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3. Mksquashfs improvements:
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3.1 Removed some small remaining parallelisation bottlenecks.
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Depending on source filesystem, up to 10%+ speed improvement.
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3.2 Progress bar improved, and moved to separate thread.
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3.3 Sparse file handling bug in Mksquashfs 3.3 fixed.
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3.4 Two rare appending restore bugs fixed (when ^C hit twice).
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3.3 1 NOV 2007 Increase in block size, sparse file support,
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Mksquashfs and Unsquashfs extended to use
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pattern matching in exclude/extract files, plus
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many more improvements and bug fixes.
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1. Filesystem improvements:
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1.1. Maximum block size has been increased to 1Mbyte, and the
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default block size has been increased to 128 Kbytes.
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This improves compression.
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1.2. Sparse files are now supported. Sparse files are files
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which have large areas of unallocated data commonly called
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holes. These files are now detected by Squashfs and stored
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more efficiently. This improves compression and read
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performance for sparse files.
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2. Mksquashfs improvements:
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2.1. Exclude files have been extended to use wildcard pattern
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matching and regular expressions. Support has also been
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added for non-anchored excludes, which means it is
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now possible to specify excludes which match anywhere
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in the filesystem (i.e. leaf files), rather than always
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having to specify exclude files starting from the root
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directory (anchored excludes).
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2.2. Recovery files are now created when appending to existing
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Squashfs filesystems. This allows the original filesystem
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to be recovered if Mksquashfs aborts unexpectedly
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(i.e. power failure).
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3. Unsquashfs improvements:
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3.1. Multiple extract files can now be specified on the
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command line, and the files/directories to be extracted can
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now also be given in a file.
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3.2. Extract files have been extended to use wildcard pattern
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matching and regular expressions.
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3.3. Filename printing has been enhanced and Unquashfs can
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now display filenames with file attributes
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('ls -l' style output).
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3.4. A -stat option has been added which displays the filesystem
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superblock information.
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3.5. Unsquashfs now supports 1.x filesystems.
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4. Miscellaneous improvements/bug fixes:
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4.1. Squashfs kernel code improved to use SetPageError in
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squashfs_readpage() if I/O error occurs.
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4.2. Fixed Squashfs kernel code bug preventing file
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seeking beyond 2GB.
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4.3. Mksquashfs now detects file size changes between
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first phase directory scan and second phase filesystem create.
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It also deals better with file I/O errors.
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3.2-r2 15 JAN 2007 Kernel patch update and progress bar bug fix
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1. Kernel patches 2.6.19/2.6.20 have been updated to use
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const structures and mutexes rather than older semaphores.
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2. Minor SMP bug fixes.
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3. Progress bar broken on x86-64. Fixed.
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3.2 2 JAN 2007 NFS support, improvements to the Squashfs-tools, major
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bug fixes, lots of small improvements/bug fixes, and new
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kernel patches.
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Improvements:
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1. Squashfs filesystems can now be exported via NFS.
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2. Unsquashfs now supports 2.x filesystems.
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3. Mksquashfs now displays a progress bar.
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4. Squashfs kernel code has been hardened against accidently or
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maliciously corrupted Squashfs filesystems.
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Bug fixes:
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5. Race condition occurring on S390 in readpage() fixed.
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6. Odd behaviour of MIPS memcpy in read_data() routine worked-around.
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7. Missing cache_flush in Squashfs symlink_readpage() added.
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3.1-r2 30 AUG 2006 Mksquashfs -sort bug fix
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A code optimisation after testing unfortunately
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broke sorting in Mksquashfs. This has been fixed.
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3.1 19 AUG 2006 This release has some major improvements to
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the squashfs-tools, a couple of major bug
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fixes, lots of small improvements/bug fixes,
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and new kernel patches.
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1. Mksquashfs has been rewritten to be multi-threaded. It
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has the following improvements
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1.1. Parallel compression. By default as many compression and
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fragment compression threads are created as there are available
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processors. This significantly speeds up performance on SMP
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systems.
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1.2. File input and filesystem output is peformed in parallel on
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separate threads to maximise I/O performance. Even on single
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processor systems this speeds up performance by at least 10%.
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1.3. Appending has been significantly improved, and files within the
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filesystem being appended to are no longer scanned and
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checksummed. This significantly improves append time for large
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filesystems.
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1.4. File duplicate checking has been optimised, and split into two
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separate phases. Only files which are considered possible
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duplicates after the first phase are checksummed and cached in
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memory.
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1.5 The use of swap memory was found to significantly impact
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performance. The amount of memory used to cache files is now a
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command line option, by default this is 512 Mbytes.
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2. Unsquashfs has the following improvements
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2.1 Unsquashfs now allows you to specify the filename or the
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directory within the Squashfs filesystem that is to be
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extracted, rather than always extracting the entire filesystem.
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2.2 A new -force option has been added which forces Unsquashfs to
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output to the destination directory even if files and directories
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already exist in the destination directory. This allows you to
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update an already existing directory tree, or to Unsquashfs to
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a partially filled directory tree. Without the -force option
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Unsquashfs will refuse to output.
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3. The following major bug fixes have been made
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3.1 A fragment table rounding bug has been fixed in Mksquashfs.
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Previously if the number of fragments in the filesystem
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were a multiple of 512, Mksquashfs would generate an
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incorrect filesystem.
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3.2 A rare SMP bug which occurred when simultaneously acccessing
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multiply mounted Squashfs filesystems has been fixed.
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4. Miscellaneous improvements/bug fixes
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4.1 Kernel code stack usage has been reduced. This is to ensure
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Squashfs works with 4K stacks.
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4.2 Readdir (Squashfs kernel code) has been fixed to always
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return 0, rather than the number of directories read. Squashfs
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should now interact better with NFS.
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4.3 Lseek bug in Mksquashfs when appending to larger than 4GB
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filesystems fixed.
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4.4 Squashfs 2.x initrds can now been mounted.
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4.5 Unsquashfs exit status fixed.
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4.6 New patches for linux-2.6.18 and linux-2.4.33.
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3.0 15 MAR 2006 Major filesystem improvements
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1. Filesystems are no longer limited to 4 GB. In
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theory 2^64 or 4 exabytes is now supported.
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2. Files are no longer limited to 4 GB. In theory the maximum
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file size is 4 exabytes.
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3. Metadata (inode table and directory tables) are no longer
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restricted to 16 Mbytes.
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4. Hardlinks are now suppported.
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5. Nlink counts are now supported.
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6. Readdir now returns '.' and '..' entries.
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7. Special support for files larger than 256 MB has been added to
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the Squashfs kernel code for faster read access.
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8. Inode numbers are now stored within the inode rather than being
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computed from inode location on disk (this is not so much an
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improvement, but a change forced by the previously listed
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improvements).
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2.2-r2 8 SEPT 2005 Second release of 2.2, this release fixes a couple
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of small bugs, a couple of small documentation
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mistakes, and adds a patch for kernel 2.6.13.
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1. Mksquashfs now deletes the output filesystem image file if an
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error occurs whilst generating the filesystem. Previously on
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error the image file was left empty or partially written.
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2. Updated mksquashfs so that it doesn't allow you to generate
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filesystems with block sizes smaller than 4K. Squashfs hasn't
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supported block sizes less than 4K since 2.0-alpha.
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3. Mksquashfs now ignores missing files/directories in sort files.
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This was the original behaviour before 2.2.
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4. Fixed small mistake in fs/Kconfig where the version was still
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listed as 2.0.
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5. Updated ACKNOWLEDGEMENTS file.
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2.2 3 JUL 2005 This release has some small improvements, bug fixes
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and patches for new kernels.
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1. Sort routine re-worked and debugged from release 2.1. It now allows
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you to give Mkisofs style sort files and checks for filenames that
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don't match anything. Sort priority has also been changed to
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conform to Mkisofs usage, highest priority files are now placed
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at the start of the filesystem (this means they will be on the
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inside of a CD or DVD).
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2. New Configure options for embedded systems (memory constrained
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systems). See INSTALL file for further details.
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3. Directory index bug fixed where chars were treated as signed on
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some architectures. A file would not be found in the rare case
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that the filename started with a chracter greater than 127.
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4. Bug introduced into the read_data() routine when sped up to use data
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block queueing fixed. If the second or later block resulted in an
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I/O error this was not checked.
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5. Append bug introduced in 2.1 fixed. The code to compute the new
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compressed and uncompressed directory parts after appending was
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wrong.
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6. Metadata block length read routine altered to not perform a
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misaligned short read. This was to fix reading on an ARM7 running
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uCLinux without a misaligned read interrupt handler.
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7. Checkdata bug introduced in 2.1 fixed.
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2.1-r2 15 DEC 2004 Code changed so it can be compiled with gcc 2.x
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1. In some of the code added for release 2.1 I unknowingly used some
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gcc extensions only supported by 3.x compilers. I have received
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a couple of reports that the 2.1 release doesn't build on 2.x and so
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people are clearly still using gcc 2.x. The code has been
|
|
rewritten to remove these extensions.
|
|
|
|
2.1 10 DEC 2004 Significantly improved directory handling plus numerous
|
|
other smaller improvements
|
|
|
|
1. Fast indexed directories implemented. These speed up directory
|
|
operations (ls, file lookup etc.) significantly for directories
|
|
larger than 8 KB.
|
|
2. All directories are now sorted in alphabetical order. This again
|
|
speeds up directory operations, and in some cases it also results in
|
|
a small compression improvement (greater data similarity between
|
|
files with alphabetically similar names).
|
|
3. Maximum directory size increased from 512 KB to 128 MB.
|
|
4. Duplicate fragment checking and appending optimised in mksquashfs,
|
|
depending on filesystem, this is now up to 25% faster.
|
|
5. Mksquashfs help information reformatted and reorganised.
|
|
6. The Squashfs version and release date is now printed at kernel
|
|
boot-time or module insertion. This addition will hopefully help
|
|
to reduce the growing problem where the Squashfs version supported
|
|
by a kernel is unknown and the kernel source is unavailable.
|
|
7. New PERFORMANCE.README file.
|
|
8. New -2.0 mksquashfs option.
|
|
9. CHANGES file reorganised.
|
|
10. README file reorganised, clarified and updated to include the 2.0
|
|
mksquashfs options.
|
|
11. New patch for Linux 2.6.9.
|
|
12. New patch for Linux 2.4.28.
|
|
|
|
2.0r2 29 AUG 2004 Workaround for kernel bug in kernels 2.6.8 and newer
|
|
added
|
|
|
|
1. New patch for kernel 2.6.8.1. This includes a workaround for a
|
|
kernel bug introduced in 2.6.7bk14, which is present in all later
|
|
versions of the kernel.
|
|
|
|
If you're using a 2.6.8 kernel or later then you must use this
|
|
2.6.8.1 patch. If you've experienced hangs or oopses using Squashfs
|
|
with a 2.6.8 or later kernel then you've hit this bug, and this
|
|
patch will fix it.
|
|
|
|
It is worth mentioning that this kernel bug potentially affects
|
|
other filesystems. If you receive odd results with other
|
|
filesystems you may be experiencing this bug with that filesystem.
|
|
I submitted a patch but this has not yet gone into the
|
|
kernel, hopefully the bug will be fixed in later kernels.
|
|
|
|
2.0 13 JULY 2004 A couple of new options, and some bug fixes
|
|
|
|
1. New mksquashfs -all-root, -root-owned, -force-uid, and -force-gid
|
|
options. These allow the uids/gids of files in the generated
|
|
filesystem to be specified, overriding the uids/gids in the
|
|
source filesystem.
|
|
2. Initrds are now supported for kernels 2.6.x.
|
|
3. amd64 bug fixes. If you use an amd64, please read the README-AMD64
|
|
file.
|
|
4. Check-data and gid bug fixes. With 2.0-alpha when mounting 1.x
|
|
filesystems in certain cases file gids were corrupted.
|
|
5. New patch for Linux 2.6.7.
|
|
|
|
2.0-ALPHA 21 MAY 2004 Filesystem changes and compression improvements
|
|
|
|
1. Squashfs 2.0 has added the concept of fragment blocks.
|
|
Files smaller than the file block size and optionally the
|
|
remainder of files that do not fit fully into a block (i.e. the
|
|
last 32K in a 96K file) are packed into shared fragments and
|
|
compressed together. This achieves on average 5 - 20% better
|
|
compression than Squashfs 1.x.
|
|
2. The maximum block size has been increased to 64K (in the ALPHA
|
|
version of Squashfs 2.0).
|
|
3. The maximum number of UIDs has been increased to 256 (from 48 in
|
|
1.x).
|
|
4. The maximum number of GIDs has been increased to 256 (from 15 in
|
|
1.x).
|
|
5. Removal of sleep_on() function call in 2.6.x patch, to allow Squashfs
|
|
to work on the Fedora rc2 kernel.
|
|
6. Numerous small bug fixes have been made.
|
|
|
|
1.3r3 18 JAN 2004 Third release of 1.3, this adds a new mksquashfs option,
|
|
some bug fixes, and extra patches for new kernels
|
|
|
|
1. New mksquashfs -ef exclude option. This option reads the exclude
|
|
dirs/files from an exclude file, one exclude dir/file per line. This
|
|
avoids the command line size limit when using the -e exclude option,
|
|
2. When appending to existing filesystems, if mksquashfs experiences a
|
|
fatal error (e.g. out of space when adding to the destination), the
|
|
original filesystem is restored,
|
|
3. Mksquashfs now builds standalone, without the kernel needing to be
|
|
patched.
|
|
4. Bug fix in the kernel squashfs filesystem, where the pages being
|
|
filled were not kmapped. This seems to only have caused problems
|
|
on an Apple G5,
|
|
5. New patch for Linux 2.4.24,
|
|
|
|
6. New patch for Linux 2.6.1, this replaces the patch for 2.6.0-test7.
|
|
|
|
1.3r2 14 OCT 2003 Second release of 1.3, bug fixes and extra patches for
|
|
new kernels
|
|
|
|
1. Bug fix in routine that adds files to the filesystem being
|
|
generated in mksquashfs. This bug was introduced in 1.3
|
|
(not enough testing...) when I rewrote it to handle files larger
|
|
than available memory. This bug caused a SEGV, so if you've ever
|
|
got that, it is now fixed,
|
|
2. Long running bug where ls -s and du reported wrong block size
|
|
fixed. I'm pretty sure this used to work many kernel versions ago
|
|
(2.4.7) but it broke somewhere along the line since then,
|
|
3. New patch for Linux 2.4.22,
|
|
4. New patch for 2.6.0-test7, this replaces the patch for 2.6.0-test1.
|
|
|
|
1.3 29 JUL 2003 FIFO/Socket support added plus optimisations and
|
|
improvements
|
|
|
|
1. FIFOs and Socket inodes are now supported,
|
|
2. Mksquashfs can now compress files larger than available
|
|
memory,
|
|
3. File duplicate check routine optimised,
|
|
4. Exit codes fixed in Mksquashfs,
|
|
5. Patch for Linux 2.4.21,
|
|
6. Patch for Linux 2.6.0-test1. Hopefully, this will work for
|
|
the next few releases of 2.6.0-testx, otherwise, I'll be
|
|
releasing a lot of updates to the 2.6.0 patch...
|
|
|
|
1.2 13 MAR 2003 Append feature and new mksquashfs options added
|
|
|
|
Mksquashfs can now add to existing squashfs filesystems. Three extra
|
|
options "-noappend", "-keep-as-directory", and "root-becomes"
|
|
have been added.
|
|
|
|
The append option with file duplicate detection, means squashfs can be
|
|
used as a simple versioning archiving filesystem. A squashfs
|
|
filesystem can be created with for example the linux-2.4.19 source.
|
|
Appending the linux-2.4.20 source will create a filesystem with the
|
|
two source trees, but only the changed files will take extra room,
|
|
the unchanged files will be detected as duplicates.
|
|
|
|
See the README file for usage changes.
|
|
|
|
1.1b 16 JAN 2003 Bug fix release
|
|
|
|
Fixed readpage deadlock bug. This was a rare deadlock bug that
|
|
happened when pushing pages into the page cache when using greater
|
|
than 4K blocks. I never got this bug when I tested the filesystem,
|
|
but two people emailed me on the same day about the problem!
|
|
I fixed it by using a page cache function that wasn't there when
|
|
I originally did the work, which was nice :-)
|
|
|
|
1.1 8 JAN 2003 Added features
|
|
|
|
1. Kernel squashfs can now mount different byte order filesystems.
|
|
2. Additional features added to mksquashfs. Mksquashfs now supports
|
|
exclude files and multiple source files/directories can be
|
|
specified. A nopad option has also been added, which
|
|
informs mksquashfs not to pad filesystems to a multiple of 4K.
|
|
See README for mksquashfs usage changes.
|
|
3. Greater than 2GB filesystems bug fix. Filesystems greater than 2GB
|
|
can now be created.
|
|
|
|
1.0c 14 NOV 2002 Bug fix release
|
|
|
|
Fixed bugs with initrds and device nodes
|
|
|
|
1.0 23 OCT 2002 Initial release
|