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19 Commits (09282b8a0b4b8ff7c57daf371dc3ea192e2947d3)

Author SHA1 Message Date
Theodore Ts'o 1e33a8b408 Fix 32/64-bit overflow when multiplying by blocks/clusters per group 
There are a number of places where we need convert groups to blocks or
clusters by multiply the groups by blocks/clusters per group.
Unfortunately, both quantities are 32-bit, but the result needs to be
64-bit, and very often the cast to 64-bit gets lost.

Fix this by adding new macros, EXT2_GROUPS_TO_BLOCKS() and
EXT2_GROUPS_TO_CLUSTERS().

This should fix a bug where resizing a 64bit file system can result in
calculate_minimum_resize_size() looping forever.

Addresses-Launchpad-Bug: #1321958

Signed-off-by: Theodore Ts'o <tytso@mit.edu>
 2014-07-26 07:40:36 -04:00
Darrick J. Wong 8d74ab767d libext2fs: check return values 
Fix up a few places where we ignore return values.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
 2013-12-12 13:14:52 -05:00
Theodore Ts'o e3507739e4 Fix gcc -Wall nits 
This fixes the last set of gcc -Wall complaints.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
 2013-01-01 13:28:27 -05:00
Theodore Ts'o d1154eb460 Shorten compile commands run by the build system 
The DEFS line in MCONFIG had gotten so long that it exceeded 4k, and
this was starting to cause some tools heartburn.  It also made "make
V=1" almost useless, since trying to following the individual commands
run by make was lost in the noise of all of the defines.

So fix this by putting the configure-generated defines in lib/config.h
and the directory pathnames to lib/dirpaths.h.

In addition, clean up some vestigal defines in configure.in and in the
Makefiles to further shorten the cc command lines.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
 2011-09-18 17:34:37 -04:00
Valerie Aurora Henson 6d8b37fa76 libext2fs: More random 64-bit fixes, lots of block_iterate3 
Signed-off-by: Valerie Aurora Henson <vaurora@redhat.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
 2010-06-13 11:00:00 -04:00
Theodore Ts'o 97d26ce9e3 Merge branch 'maint' into next 
Conflicts:
	e2fsck/journal.c
	e2fsck/pass1.c
	e2fsck/pass2.c
	misc/mke2fs.c
 2010-06-07 12:42:40 -04:00
Theodore Ts'o 543547a52a libe2p, libext2fs: Update file copyright permission states to match COPYING 
The top-level COPYING file states that the e2p and ext2fs libraries
are available under the LGPLv2.  The files were incorrectly labelled.
Alex Thomas/Luster has been consulted wrt to the ext3_extents.h file;
the rest of the files were primarily authored by Theodore Ts'o.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
 2010-05-17 23:04:39 -04:00
Valerie Aurora Henson d7cca6b06f Convert to use block group accessor functions 
Convert direct accesses to use the following block group accessor
functions: ext2fs_block_bitmap_loc(), ext2fs_inode_bitmap_loc(),
ext2fs_inode_table_loc(), ext2fs_bg_itable_unused(),
ext2fs_block_bitmap_loc_set(), ext2fs_inode_bitmap_loc_set(),
ext2fs_inode_table_loc_set(), ext2fs_bg_free_inodes_count(),
ext2fs_ext2fs_bg_used_dirs_count(), ext2fs_bg_free_inodes_count_set(),
ext2fs_bg_free_blocks_count_set(), ext2fs_bg_used_dirs_count_set()

Signed-off-by: Valerie Aurora Henson <vaurora@redhat.com>
Signed-off-by: Nick Dokos <nicholas.dokos@hp.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
 2009-10-25 21:43:47 -04:00
Valerie Aurora Henson 24a117abd0 Convert to use io_channel_read_blk64() and io_channel_write_blk64() 
Signed-off-by: Valerie Aurora Henson <vaurora@redhat.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
 2009-09-07 21:14:24 -04:00
Valerie Aurora Henson 8f82ef9860 Convert libext2fs to 64-bit bitmap interface 
(Includes fixes from Nick Dokos)

Signed-off-by: Valerie Aurora Henson <vaurora@redhat.com>
Signed-off-by: Nick Dokos <nicholas.dokos@hp.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
 2009-08-05 00:27:10 -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 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
Brian Behlendorf f93625b292 [COVERITY] Fix (error case) memory leak in libext2fs (ext2fs_image_inode_write) 
Use pre-existing early exit label in function to handle proper
error code return and local memory allocation cleanup.

Coverity ID: 23: Resource Leak

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
 2007-03-21 17:43:37 -04:00
Theodore Ts'o 544349270e Fix gcc -Wall nitpicks 2003-12-07 01:28:50 -05:00
Theodore Ts'o fff45483ed Add portability enhancements for Cygwin32 environment. 2003-04-13 00:44:19 -04:00
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 b94bd81ae2 ChangeLog, imager.c: 
imager.c: Fix gcc -Wall complaints and a series of bugs where retval
  	wasn't set correctly.  (Thanks to Andreas Dilger for pointing this
  	out.)
 2001-01-12 17:26:05 +00:00
Theodore Ts'o 72ed126483 ChangeLog, Makefile.in, e2image.h, ext2_err.et.in, ext2fs.h, imager.c: 
imager.c (ext2fs_image_{inode,super,bitmap}_{read,write}, ext2_fs.h,
  	Makefile.in: New file that has routines that save ext2fs metadata to a
  	file.
  ext2_err.et.in (EXT2_ET_MAGIC_E2IMAGE): New error code assigned.
  e2image.h: New file which defines the file format for the ext2 image
  	file.  (Saved copy of ext2 metadata to a file as a saving throw
  	against worst-case damage.)
ChangeLog, Makefile.in, e2image.c:
  e2image.c, Makefile.in: New program which saves ext2 metadata to a
  	file for people who need a last-ditch saving throw.
 2000-11-12 19:32:20 +00:00