Commit Graph

32 Commits (2291fbb0358be8251df0d611913f49fbb9beb740)

Author SHA1 Message Date
Theodore Ts'o f4240c8d56 libext2fs: Treat uninitialized parts of bitmaps as unallocated
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2009-08-09 23:22:32 -04:00
Theodore Ts'o efc6f628e1 Remove trailing whitespace for the entire source tree
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2008-08-27 23:07:54 -04:00
Theodore Ts'o 2d40a91e17 libext2fs: Replace use of sprintf with strcpy/strcat to help SILO
Some bootloaders, like SILO, don't provide sprintf in their limited
bootloader environment.  Since the uses in rw_bitmaps.c is only doing
sprintf("foo %s"), it's easy to replace that usage with strcpy/strcat.

Addresses-Sourceforge-Bug: #2049120

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2008-08-22 10:37:18 -04:00
Theodore Ts'o 57fd39e943 libext2fs: Fix reading bitmaps from e2image files
Fix a signed vs. unsigned bug that was accidentally introduced in
commit f1f115a7, which was introduced in e2fsprogs 1.41.0

Addresses-Debian-Bug: #495830

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2008-08-21 17:56:44 -04:00
Theodore Ts'o 16b851cdae Remove LAZY_BG feature
This simplifies the code, and using the uninit_bg with the inode table
lazily initialized is just as good.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2008-04-20 23:33:34 -04:00
Jose R. Santos d4f34d41be Add uninit block group support to various libext2fs functions
Signed-off-by: Jose R. Santos <jrs@us.ibm.com>
Signed-off-by: Andreas Dilger <adilger@clusterfs.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2008-03-20 15:33:12 -04:00
Theodore Ts'o ccbcc40e3b Remove PowerPC bitmap hackery since it's not been needed since Linux 2.1
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2007-08-11 01:59:13 -04:00
Theodore Ts'o f1f115a78f libext2fs: 32-bit bitmap refactorization, part 3
Create new functions ext2fs_{set,get}_{inode,block}_bitmap_range()
which allow programs like e2fsck, dumpe2fs, etc. to get and set chunks
of the bitmap at a time.

Move the representation details of the 32-bit old-style bitmaps into
gen_bitmap.c.

Change calls in dumpe2fs, mke2s, et. al to use the new abstractions.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2007-07-23 04:32:48 -04:00
Theodore Ts'o f5fa20078b Add support for EXT2_FEATURE_COMPAT_LAZY_BG
This feature is initially intended for testing purposes; it allows an
ext2/ext3 developer to create very large filesystems using sparse files
where most of the block groups are not initialized and so do not require
much disk space.  Eventually it could be used as a way of speeding up
mke2fs and e2fsck for large filesystem, but that would be best done by 
adding an RO_COMPAT extension to the filesystem to allow the inode table
to be lazily initialized on a per-block basis, instead of being entirely initialized
or entirely unused on a per-blockgroup basis.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2006-05-08 20:17:26 -04:00
Theodore Ts'o 1f2da2c011 Speed up mke2fs and e2fsck by writing bitmaps more efficiently
Reduce disk seeks by writing the inode and block bitmaps in an interleaved fashion.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2006-04-23 12:43:40 -04:00
Theodore Ts'o 1ad54a940c Add ability for debugfs to use a separate source of data blocks when
reading from an e2image file.  (New -d option)

Add new functions ext2fs_get_data_io, ext2fs_set_data_io,
ext2fs_rewrite_to_io to libext2fs library.
2004-07-28 21:11:48 -04:00
Theodore Ts'o 544349270e Fix gcc -Wall nitpicks 2003-12-07 01:28:50 -05:00
Theodore Ts'o c4e3d3f374 ext2fs_getmem(), ext2fs_free_mem(), and ext2fs_resize_mem()
all now take a 'void *' instead of a 'void **' in order to 
avoid pointer aliasing problems with GCC 3.x.
2003-08-01 09:41:07 -04:00
Theodore Ts'o 8132d840c8 Fix endian problems in the htree code for e2fsck and debugfs.
When byte-swapping a filesystem on a PPC architecture, byte-swap
the bitmaps since the historical big-endian ext2 variant had
byte-swapped bitmaps, and the ext2fs library assumes this.  Otherwise
the regression test suite will fail...
2002-10-02 22:07:17 -04:00
Theodore Ts'o 5df55d7f84 ChangeLog, Makefile.in, swapfs.c, unix.c:
Makefile.in: Add message.c and swapfs.c to the list of source files to
  	build the make depend.
  swapfs.c, unix.c: Only support the -s and -S options to e2fsck if
  	ENABLE_SWAPFS is defined.
Many files:
  ext2fs.h, bitops.h, block.c, bmap.c, closefs.c, dirblock.c, inode.c,
  	native.c, openfs.c, rw_bitmaps.c, swapfs.c: Only include the
  	byte-swapping logic if ENABLE_SWAPFS is turned on or if we're on a
  	big-endian machine.
  initialize.c (ext2fs_initialize):Use WORDS_BIGENDIAN directly to set
  	EXT2_FLAG_SWAP_BYTES, instead of using ext2fs_native_flag.
  native.c (ext2fs_native_flag): Use WORDS_BIGENDIAN provided by
  	autoconf to determine whether or not return EXT2_FLAG_SWAP_BYTES.
2001-06-11 07:00:04 +00:00
Theodore Ts'o 9f8046fc6d Many files:
alloc.c, alloc_tables.c, badblocks.c, bb_compat.c, bb_inode.c,
  	bitmaps.c, bitops.c, block.c, bmap.c, bmove.c, brel_ma.c,
  	check_desc.c, closefs.c, cmp_bitmaps.c, dblist.c, dblist_dir.c,
  	dir_iterate.c, dirblock.c, dupfs.c, expanddir.c, ext2_fs.h, fileio.c,
  	finddev.c, flushb.c, freefs.c, get_pathname.c, getsize.c, icount.c,
  	imager.c, initialize.c, inline.c, inode.c, irel_ma.c, ismounted.c,
  	link.c, lookup.c, mkdir.c, mkjournal.c, namei.c, native.c, newdir.c,
  	nt_io.c, openfs.c, read_bb.c, read_bb_file.c, rs_bitmap.c,
  	rw_bitmaps.c, swapfs.c, test_io.c, tst_badblocks.c, tst_byteswap.c,
  	tst_getsize.c, tst_iscan.c, unix_io.c, unlink.c, valid_blk.c,
  	version.c, write_bb_file.c, ext2_fs.h: Moved file from include/linux.
  	Adjust all files in this directroy to include this file.
2001-05-14 11:35:52 +00:00
Theodore Ts'o a78926effb Many files:
ext2fs.h (EXT2_FLAG_IMAGE_FILE): Add new flag, and add image_header
  	field in the ext2_filsys structure
  block.c (block_iterate_ind, block_iterate_dind, block_iterate_tind):
  inode.c (ext2fs_read_inode):
  rw_bitmaps.c (read_bitmaps):
  openfs.c (ext2fs_open): Add support for EXT2_FLAG_IMAGE_FILE
  imager.c (ext2fs_image_bitmap_read): Fix bug in imager to make sure
  	the full bitmap is saved.
2001-05-03 04:02:29 +00:00
Theodore Ts'o 2eb374c940 Many files:
rw_bitmaps.c: Fixed signed/unsigned warnings.
  fileio.c (ext2fs_file_set_size): Remove unneeded extern from the
  	function declaration.
  dblist.c (make_dblist): Add safety check in case the dblist pointer
  	passed in is null (in which case, assign it to fs->dblist).  Fixed
  	some signed/unsigned warnings.
  bmap.c: Make addr_per_block be of type blk_t to avoid signed/unsigned
  	warnings.
  namei.c (ext2fs_follow_link): Remove uneeded extern from the function
  	declaration.
  get_pathname.c (get_pathname_proc): Use return value from
  	ext2fs_get_mem, instead of checking if &gp->name is NULL.
  dir_iterate.c (ext2fs_process_dir_block):
  dblist_dir.c (ext2fs_dblist_dir_iterate): Remove uneeded extern from
  	the function declaration.
  block.c (ext2fs_block_iterate2): If the read_inode call fails, return
  	the error directly instead of jumping to the cleanup routine, since we
  	don't need to do any cleanup.
  alloc_table.c (ext2fs_allocate_group_table): Make this function take a
  	dgrp_t for its group argument.
  ext2fs.h: Make dgrp_t an __u32 type, and make fs->desc_group_count be
  	of type dgrp_t.
1998-09-03 01:22:57 +00:00
Theodore Ts'o 9abd2ce914 ChangeLog, bmove.c, ext2_io.h, ext2fs.h, rw_bitmaps.c, test_io.c:
ext2_io.h, ext2fs.h: Protect against being included multiple times.
  bmove.c: #include ext2fsP.h instead of "ext2fs/ext2fs.h"
  test_io.c (test_flush): Add a debugging printf when the flush method
  	is called.
  rw_bitmaps.c (ext2fs_read_bitmaps): If the bitmaps are already read
  	in, return right away.
1998-02-16 22:00:37 +00:00
Theodore Ts'o b5abe6fac9 Many files:
inode.c (ext2fs_open_inode_scan): Initialize the group variables
  	so that we don't need to call get_next_blockgroup() the first
  	time around.  Saves a bit of time, and prevents us from
  	needing to assign -1 to current_group (which is an unsigned
  	value).
  icount.c (insert_icount_el): Cast the estimated number of inodes
  	from a float to an ino_t.
  alloc.c, alloc_tables.c, badlbocks.c, bb_compat.c, bb_inode.c,
  	bitmaps.c, bitops.c, block.c, bmap.c, bmove.c, brel_ma.c,
  	check_desc.c, closefs.c, cmp_bitmaps.c, dblist.c,
  	dblist_dir.c, dir_iterate.c, dirblock.c, dupfs.c, expanddir.c,
  	ext2fs.h, fileio.c, freefs.c, get_pathname.c, getsize.c,
  	icount.c, initialize.c, inline.c, inode.c, irel_ma.c,
  	ismounted.c, link.c, lookup.c, mkdir.c, namei.c, native.c,
  	newdir.c, openfs.c, read_bb.c, read_bb_file.c, rs_bitmap.c,
  	rw_bitmaps.c, swapfs.c, test_io.c, tst_badblocks.c,
  	tst_getsize.c, tst_iscan.c, unix_io.c, unlink.c, valid_blk.c,
  	version.c: If EXT2_FLAT_INCLUDES is defined, then assume all
  	of the ext2-specific header files are in a flat directory.
  block.c, bmove.c, dirblock.c, fileio.c: Explicitly cast
  	all assignments from void * to be compatible with C++.
  closefs.c (ext2fs_flush): Add a call to io_channel_flush() to
  	make sure the contents of the disk are flushed to disk.
  dblist.c (ext2fs_add_dir_block): Change new to be new_entry to
  	avoid C++ namespace clash.
  bitmaps.c (ext2fs_copy_bitmap): Change new to be new_map to
  	avoid C++ namespace clash.
  ext2fs.h, bb_inode.c, block.c, bmove.c, brel.h, brel_ma.c,
  	irel.h, irel_ma.c, dblist.c, dblist_dir.c, dir_iterate.c,
  	ext2fsP.h, expanddir.c, get_pathname.c, inode.c, link.c,
  	unlink.c: Change private to be priv_data (to avoid C++
  	namespace clash)
1998-01-19 14:47:53 +00:00
Theodore Ts'o 5be8dc2143 Many files:
dblist.c (ext2fs_get_num_dirs): Make ext2fs_get_num_dirs more paranoid
  	about validating the directory counts from the block group
  	information.
  all files: Don't include stdlib.h anymore; include it in ext2_fs.h,
  	since that file requires stdlib.h
ChangeLog, Makefile.in, dirinfo.c:
  dirinfo.c (e2fsck_add_dir_info): Use ext2fs_get_num_dirs instead of
  	e2fsck_get_num_dirs, which has been removed.
  Makefile.in (PROGS): Remove @EXTRA_PROGS@, since we don't want to
  	compile and install flushb.
ChangeLog, configure.in:
  Remove @EXTRA_PROGS@, since we aren't using it in 2fsck/Makefile.in anymore
ChangeLog, Makefile.in:
  Install debugfs in /sbin, instead of /usr/sbin.
libext2fs.texinfo:
  Update version string to be 1.12
Makefile.in:
  Fix bug in find script which made the exclusion list, where a '-' was
  missing from an -name option.
1997-12-01 18:24:10 +00:00
Theodore Ts'o 7b4e4534f9 Many files:
Added definition of ext2fs_get_mem, ext2fs_free_mem, and
  ext2fs_resize_mem in ext2fs.h, and changed all library routines to use
  these wrapper functions.
1997-10-26 03:41:24 +00:00
Theodore Ts'o c555aebde4 Many files:
alloc.c (ext2fs_alloc_block): New function which allocates a
  	block and updates the filesystem accounting records
  	appropriately.
  ext2_err.et.in: Added new error codes: EXT2_NO_MEMORY,
  	EXT2_INVALID_ARGUMENT, EXT2_BLOCK_ALLOC_FAIL, EXT2_INODE_ALLOC_FAIL,
  	EXT2_NOT_DIRECTORY
  Change various library files to use these functions instead of EINVAL,
  ENOENT, etc.
ChangeLog, pass1.c, pass3.c:
  pass3.c (get_lost_and_found): Check error return of
  	EXT2_FILE_NOT_FOUND instead of ENOTDIR
  pass1.c (pass1_check_directory): Return EXT2_NO_DIRECTORY instead of
  	ENOTDIR
expect.icount:
  Change expected error string to be "Invalid argument passed to ext2 library"
  instead of just "Invalid argument"
1997-10-25 04:16:53 +00:00
Theodore Ts'o 519ee04308 rw_bitmaps.c:
Add #ifdef's for HAVE_SYS_STAT_H and HAVE_SYS_TYPES_H
1997-10-20 00:52:43 +00:00
Theodore Ts'o 1c27cac2e8 ChangeLog, .del-io.h~72680822, irel_ma.c, llseek.c, rw_bitmaps.c:
io.h: Change the prototype of ext2fs_llseek() to use int's instead of
  	unsigned int's.
  llseek.c: Change to allow PIC and !HAVE_LLSEEK.  Add a prototype to
  	make life easer for GNU Libc 2.
  rw_bitmaps.c: On the PowerPC, the big-endian variant of the ext2
  	filesystem has its bitmaps stored as 32-bit words with bit 0 as the
  	LSB of each word.  Thus a bitmap with only bit 0 set would be, as a
  	string of bytes, 00 00 00 01 00 ...  To cope with this, we
  	byte-reverse each word of a bitmap if we have a big-endian filesystem,
  	that is, if we are *not* byte-swapping other word-sized numbers.
ChangeLog, expect.1, image.gz:
  f_badinode: Modify test to check for "bad" character and block devices
  	(i.e., ones which contain garbage block entries)
1997-08-14 17:20:42 +00:00
Theodore Ts'o 3cb6c5021d Many files:
dosio.c: New file to do DOS/BIOS disk accesses.
  namei.c (open_namei): Make pathlen be of type size_t.
  llseek.c: Always #include stdlib.h since it's need to define
  	size_t.
  io.h: Use errcode_t for magic numbers.
  icount.c (get_icount_el), dupfs.c (ext2fs_dup_handle), dblist.c
  	(dir_block_cmp): Use size_t where appropriate.
  read_bb.c (ext2fs_read_bb_inode), cmp_bitmaps.c
  	(ext2fs_compare_inode_bitmap): Use blk_t, ino_t and size_t
  	where appropriate.
  closefs.c (ext2fs_flush): Use dgrp_t instead of int where
  	appropriate.
  openfs.c (ext2fs_open), check_desc.c (ext2fs_check_desc): Use blk_t
  	instead of int where 	appropriate.
  rw_bitmaps.c (read_bitmaps), irel_ma.c, inode.c (ext2fs_write_inode),
  	initialize.c (ext2fs_initialize): brel_ma.c: Fix to make be
  	16-bit safe.
  link.c (ext2fs_link), unlink.c (ext2fs_unlink), lookup.c (lookup_proc),
  	ismounted.c (ext2fs_check_if_mounted), block.c (xlate_func):
  	Add #pragma argsused for Turbo C.
1997-08-11 20:29:22 +00:00
Theodore Ts'o 4cbe8af4b0 Many files:
block.c (ext2fs_block_iterate2): Use retval which is a errcode_t type.
  bitmaps.c (make_bitmap): Use size_t instead of int where appropriate.
  bb_inode.c (set_bad_block_proc): Add #pragma argsused for Turbo C.
  alloc.c (ext2fs_new_inode): Use ino_t instead of int for the group number.
  get_pathname.c: Use ino_t instead of int where appropriate.
  ext2fs.h: Make the magic structure element be errcode_t instead of int.
  alloc.c alloc_tables.c badblocks.c bb_compat.c bb_inode.c
  	bitmaps.c block.c bmove.c brel_ma.c check_desc.c closefs.c
  	cmp_bitmaps.c dblist.c dblist_dir.c dir_iterate.c dirblock.c
  	dupfs.c expanddir.c freefs.c get_pathname.c icount.c
  	initialize.c inline.c inode.c irel_ma.c link.c llseek.c
  	lookup.c mkdir.c namei.c newdir.c read_bb.c read_bb_file.c
  	rs_bitmap.c rw_bitmaps.c swapfs.c test_io.c tst_badblocks.c
  	tst_iscan.c unix_io.c unlink.c valid_blk.c version.c: Add an
  	#ifdef for HAVE_UNISTD_H
1997-08-10 23:07:40 +00:00
Theodore Ts'o 19c78dc07f Many files:
Checked in e2fsprogs-1.07
1997-04-29 16:17:09 +00:00
Theodore Ts'o 7f88b04341 Many files:
Checkin of e2fsprogs 1.03.
1997-04-26 14:48:50 +00:00
Theodore Ts'o 74becf3c0a Many files:
Checkin of e2fsprogs 1.02.
1997-04-26 14:37:06 +00:00
Theodore Ts'o 50e1e10fa0 Many files:
Checked in e2fsprogs 0.5c
1997-04-26 13:58:21 +00:00
Theodore Ts'o f3db3566b5 Many files:
Checkin of e2fsprogs 0.5b
1997-04-26 13:34:30 +00:00