Test I/O debugging is incredibly useful for rooting out problems, so
let's enable by default, especially now that its overhead is only
incurred when it is needed.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
This I/O manager saves the contents of the location being overwritten
to a tdb database. This helps in undoing the changes done to the
file system.
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
$(LIBSS) should automatically include @DLOPEN_LIB@ so the right thing
happens for programs that need to use the ss library.
Reorder the library link order for tst_extents since the blkid library
uses libuuid functions.
Thanks to Eric Sandeen for pointing this problem out!
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
- Add support for computing CRC-16 value.
- Add call to check/verify/set csum on block_groups.
- Add a test program to verify csum operations.
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>
All files under $(OBJS) and $(SRCS) should be in alphabetical order
but this is not always the case. Let fix some some of these before
applying new files to the list of $(SRCS).
Signed-off-by: Jose R. Santos <jrs@us.ibm.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
--
lib/ext2fs/Makefile.in | 12 ++++++------
1 files changed, 6 insertions(+), 6 deletions(-)
Move the 32-bit specific bitmap code into gen_bitmap.c, and the
high-level interfaces into bitmaps.c. Eventually we'll move the
new-style bitmap code into gen_bitmap64.c, but first we need to
isolate the code with knowledge of the bitmap internals in one place
first.
In this patch we move allocation, free, copy, clear, set_padding, and
fudge_end function into gen_bitmap.c, and make sure that the bitmaps.c
and bitops.c no longer have any knowledge of the bitmap internals.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
This caused FTBFS bugs on AMD64 platforms, since it uses a different
64-bit type when compared with IA64, so we need to make our
autoconfiguration system more intelligent.
Addresses Debian Bugs: #360661, #360317
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
The x86 assembly instructures for bit test-and-set, test-and-clear,
etc., interpret the bit number as a 32-bit signed number, which is
problematic in order to support filesystems > 8TB.
Added new inline functions (in C) to implement a
ext2fs_fast_set/clear_bit() that does not return the old value of the
bit, and use it for the fast block/bitmap functions.
Added a regression test suite to test the low-level bit operations
functions to make sure they work correctly.
Note that a bitmap can address 2**32 blocks requires 2**29 bytes, or
512 megabytes. E2fsck requires 3 (and possibly 4 block bitmaps),
which means that the block bitmaps can require 2GB all by themselves,
and this doesn't include the 4 or 5 inode bitmaps (which assuming an
8k inode ratio, will take 256 megabytes each). This means that it's
more likely that a filesystem check of a filesystem greater than 2**31
blocks will fail if the e2fsck is dynamically linked (since the shared
libraries can consume a substantial portion of the 3GB address space
available to x86 userspace applications). Even if e2fsck is
statically linked, for a badly damaged filesystem, which may require
additional block and/or inode bitmaps, I am not sure e2fsck will
succeed in all cases.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Add a dependency to make sure that the subdirectories are created before
creating all of the object files.
Addresses Sourceforge Bug: #1261553
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
res_gdt.c (list_backups), closefs.c (ext2fs_bg_has_super),
ext2fs.h: Move ext2fs_list_backups() to res_gdt.c, and
ext2fs_bg_has_super() back to closefs.c. There's no
reason for the new file, since list_backups() isn't being
used by any other functions, and can be made static, and
all users of the ext2fs filesystem will have to call
ext2fs_close() anyway.
correctly.
Update Makefile dependencies.
Update "make depend" production so that it filters out comments
inserted by newer gcc compilers.
Remove sync from e2fsck's "make all" target.
example, /tmp/test.img?offset=1024. Multiple options can separated using
the & character, although at the moment the only option implemented is
the offset option in the unix_io layer.
the superblock and block group descriptors into two functions:
ext2fs_reserve_super_and_bgd, found in lib/ext2fs/alloc_sb.c, and
ext2fs_super_and_bgd_lock, found in lib/ext2fs/close.c.
Change e2fsck/pass1.c (mark_table_blocks), lib/ext2fs/closefs.c
(ext2fs_flush), lib/ext2fs/initialize.c (ext2fs_initialize),
and misc/dumpe2fs.c (list_desc) to use these functions.
e2fsck/ChangeLog
pass1.c (mark_table_blocks): Use the new function
ext2fs_reserve_super_and_bgd to calculate the blocks to be
reserved.
lib/ext2fs/ChangeLog
closefs.c (ext2fs_super_and_bgd_loc): New function which
centralizes the calculation of the superblock and block
group descriptors.
(ext2fs_flush): Use ext2fs_super_and_bgd_lock to figure
out where to write the superblock and block group
descriptors.
alloc_sb.c (ext2fs_reserve_super_and_bgd): New function which
reserves space in the block bitmap using
ext2fs_super_and_bgd_loc.
initialize.c (ext2fs_initialize): Use
ext2fs_reserve_super_and_bgd to initialize the block bitmap.
misc/ChangeLog
dumpe2fs.c (list_desc): Use ext2fs_super_and_bgd_loc to
determine the locations of the superblock and block group
descriptors.
device is larger than the default block size, then use the
sector size of the device as the default block size.
getsectsize.c (ext2fs_get_device_sectsize): New function which
returns the hardware sector size (if it is available).
instead of <com_err.h>, so the current version of the header file
is used.
Add a --build-tree option to compile_et to make sure that it uses
the et_?.awk files from the build tree.
Remove legacy support for varargs.h, K&R C, and pre-POSIX signal
support. Also fixed gcc -Wall nits.
Disable certain tests that depend on the byteswapping functions
being present so that "make check" succeeds even if --disable-swapfs
is passed to the configure script.
Revert the shlibs hack.
Makefile.in: Remove inode_io.o from the standard object files
in libext2fs, and only build it if debugfs is enabled
(it requires fileio.o, which is only built if
--disable-debugfs isn't specified to configure).
Theodore Ts'o