Allow the uninit_bg feature to be set without requiring an fsck. The
first full fsck will require scanning all of the inode table blocks,
but subsequent fsck's will be fast. This allows flexibility over
requiring a full fsck after setting this feature, which is what
tune2fs previously mandated.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
When increasing inode size if we find that the new block
that we needed to increase the inode table size is a bad
block we fail. This make sure we don't end up with a corrupt
file system when doing inode resize on a file system having
bad blocks.
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
With file system formated for RAID arrays we can have inode bitmap
and block bitmap after inode table. Make sure we move them around
properly when doing inode resize.
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
This removes the metadata block bitmap and makes the error handling
simpler. It also check for the enospc with the correct number needed
blocks. Also added specific error messages. We need to run e2undo
only if we start modiyfing inode, group desc and inode table.
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Add an option to switch between the private (in-tree) libblkid and
public (in-system installed) library. The private version is still
enabled by default.
If --disable-libblkid is specified the findfs(8) program, which is a
variant of tune2fs, is also not built or installed.
Signed-off-by: Karel Zak <kzak@redhat.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Hurd doesn't define PATH_MAX, so calculate the exact size needed for
the tdb filename, and allocate it dynamically.
Addresses-Debian-Bug: #521602
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Add a check to make sure the argument to the -m option (which
specifies the reserved ratio) is greater than zero.
Addresses-Debian-Bug: #517015
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
If a filesystem is built with the stride extended-option (which is
often used in RAID filesystems to make sure the block and inode
allocation bitmaps don't end up hitting one disk platter harder than
the rest), this can cause tune2fs -I to corrupt the filesystem because
it fails to handle the case where the allocation bitmaps are located
after the inode table, where the inode table needs to grow. Handle
this case correctly.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
With flex_bg usually the inode table for most block groups are packed
right against each other, so expanding the inode table size needs
special handling that's not currently in tune2fs.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
When running "tune2fs -I 256" on moderate to large filesystems, the
time required to run tune2fs can take many hours (20+ before some
users gave up in disgust). This was due to some O(n**2) and O(n*m)
algorithms in move_block() and inode_scan_and_fix(), respectively.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Since the block group checksums depend on the UUID, we need to update
the block group checksums when setting the UUID. We only do so if all
of the checksums are correct, however.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
In order to make it possible for the test_io manager to be compiled in
by default, make all of the programs that might try to use it to only
do so if the environment variables TEST_IO_FLAGS and TEST_IO_DEBUG are
set.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
If the current inode size is less than or equal to the requested inode
size, either explain that shrinking the inode size is not supported,
or that the inode is already the requested size. Also, open the
filesystem provisionally first to do the inode size check and don't
setup up the undo log until we know that we're actually going to
perform the inode resizing operation.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Solaris's header files are very picky about which C compiler can be
used for SUSv3 conformance. Use of C99 is not compatible with SUSv2
(_XOPEN_SOURCE=500), and C89 is not compatible with SUSv3
(_XOPEN_SOURCE=600). Since we need some SUSv3 functions, consistently
use SUSv3 so that e2fsprogs will build on Solaris using c99.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Also change mke2fs.conf to enable huge_file,dir_nlink,extra_isize, and
uninit_bg by default for ext4 filesystems, and enable extra_isize in
the library as well.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
When calculating the number reserved blocks, use floating point for
better accuracy, since for big filesystems it really makes a
difference. In addition, mke2fs and tune2fs accepts a floating point
number from the user, so they should provide that level of accuracy.
Addresses-Debian-Bug: #452639
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Add new option -I <inode_size> to tune2fs. This is used to change the
inode size. The size need to be multiple of 2 and we don't allow to
decrease the inode size.
As a part of increasing the inode size we increase the inode table
size. We also move the used data blocks around and update the
respective inodes to point to the new block
tune2fs uses the undo I/O manager when migrating to large inode. This
helps in reverting the changes if end results are not correct. The
environment variable TUNE2FS_UNDO_DIR is used to indicate the
directory within which the tdb file need to be created. The file will
be named tune2fs-<device-name> If TUNE2FS_UNDO_DIR is not set
/var/lib/e2fsprogs is used
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
We need to set tm_isdst to -1 so that mktime will automatically
determine whether or not daylight savings time (DST) is in effect.
Previously tm_isdst was set to 0, which caused mktime to interpret the
time as if it was always not using DST.
Addresses-Debian-Bug: #471882
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Clearing SPARSE_SUPER is dangerous; it can result in a filesystem
which e2fsck can't fix easily. Since there is very few good reasons
for wanting to turn this feature off, disable tune2fs's abiity to do
this. Users who really want this can use debugfs.
Also, deprecate the tune2fs -s option. Remove it from the man page
and usage message.
Addresses-Sourceforge-Bug: #1840286
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Previously we just let the kernel and e2fsck do this automatically,
but e2fsck will no longer automatically clear the large_file feature.
It still isn't really necessary to worry about this feature flag
explicitly, but some users seem to care.
Addresses-Red-Hat-Bugzilla: #258381
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
This requires an fsck aftwards. We don't allow setting the
resize_inode feature because extensive work to tune2fs or e2fsck to
safely relocate blocks is necessary in order to reserve the blocks
needed by the resize inode.
Addresses-Red-Hat-Bugzilla: #167816
Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Use a more abstract set of feature tests to avoid merge conflicts as
we add support for new features in the maint, master, next, and pu git
branches.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
This is useful for mballoc to align block allocation on the RAID
stripe boundaries.
Signed-off-by: Rupesh Thakare <rupesh@clusterfs.com>
Signed-off-by: Andreas Dilger <adilger@clusterfs.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Pass BLOCK_FLAG_READ_ONLY to ext2fs_block_iterate2() so that debugfs,
e2image, and tune2fs will work well with filesystems containing
extents.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
The test_fs flag is an "ok to be used with test kernel code" flag. It
makes it easier for us to determine whether a filesystem should be
mounted using ext4 or not.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Add FLEX_BG as a supported feature bit.
Add support to mke2fs to create filesystems with FLEX_BG.
Add support to tune2fs to add (and remove, if it won't break
filesystem consistency) the FLEX_BG feature.
Signed-off-by: Jose R. Santos <jrs@us.ibm.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
--
lib/e2p/feature.c | 2 ++
lib/ext2fs/ext2fs.h | 6 ++++--
misc/mke2fs.c | 7 ++++++-
3 files changed, 12 insertions(+), 3 deletions(-)
This patch changes ext2fs_open() to set EXT2_FLAG_MASTER_SB_ONLY by
default. This avoids some problems in e2fsck (reported by Jim Garlick)
where a corrupt journal can end up writing the bad superblock to the
backups. In general, only e2fsck (after the filesystem is clean),
tune2fs, and resize2fs should change the backup superblocks by default.
Most callers of ext2fs_open() should not be touching anything where the
backups should be touched. So let's change the defaults to avoid
potential problems.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Change all of the e2fsprogs programs to use the newer add_error_table()
and remove_error_table() interfaces instead of the much older
initialize_*_error_table() function.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Add a new functiom, e2p_percent(), which correct calculates the percentage
of a number based on a given percentage, without worrying about overflow
issues. This is used where we calculate the number of reserved blocks using
a percentage of the total number of blocks in a filesystem.
Based on patches from Eric Sandeen, but generalized to use this new function.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Signed-off-by: Eric Sandeen <esandeen@redhat.com>
We were complaining with a confusing error message if the user tried to specify
a check interval larger than a 365 days. It's probably a bad idea if the user wants to
do this, but it's not worth it to complain.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Allow the reserved blocks ratio to be specified in fractional
percentages.
Addresses-Debian-Bug: #80205
Signed-off-by: Andreas Dilger <adilger@clusterfs.com>
should use the passed-in argument, not optarg, even though
the two are the same in the case of the current caller of
said function. (i.e., no user-visible problems were caused
by this, even though the code was wrong).
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.
TUNE2FS_SKIP_MOUNT_CHECK is set, do not try
to check if the filesystem is mounted.
(update_feature_set): If the compatibility bitmasks were
not modified, don't set the superblock dirty bit.
tune2fs to use the test I/O manager.
The test I/O manager has been changed to not do anything extra by
default, unless the TEST_IO_FLAGS and/or TEST_IO_BLOCK environment
variables are set, which controls what I/O operations are logged and
a block number to watch, respectively. The log messages are sent to
stderr by default, unless a filename is specified via the
TEST_IO_LOGFILE environment variable.
tune2fs.c (update_feature_set): Allow directory indexing flag to
be set. If so, set the default hash to be TEA, and
initialize the hash seed to a random value.
function in get_device_by_label.c to allow the use of
UUID= or LABEL= when creating filesystems which use external
journal dev (e.g. mke2fs -J device=LABEL=<journal_label>).
tune2fs.c: Use superblock s_journal_uuid to locate an external
journal device instead of s_journal_dev when removing it.
Allow opening journal devices to set the label and UUID
in the ext2 superblock.
mke2fs.c, tune2fs.c: Free journal_device after use, as it is
malloc'd in interpret spec.
removing an in-filesystem journal, clear out the journal
inode and update the filesystem accounting structures so
we don't have to run e2fsck to clean up after ourselves
tune2fs.c, mke2fs.c, util.c, util.h (print_check_message): Move the
message which displays how often the filesystem will be checked from
mke2fs into a utility subroutine. Then cause tune2fs to call that
function to display the message after adding a journal to a
filesystem.
mke2fs.8.in: Add manual page fixups and explanation for why it's good
to check filesystems periodically from Andreas Dilger.
Theodore Ts'o