| Commit message (Collapse) | Author | Age | Files | Lines |
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Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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I ran into odd behavior where mkfs.ext4 of a 16T filesystem would
create a resize inode with 0 reserved blocks, and mark the resize_inode
feature.
A subsequent slight downward resize of the filesystem would remove
the resize inode, making any further offline resizing impossible.
This is especially odd in light of the fact that a large downward
resize (say, to 8T) will actually add blocks to the resize inode -
so a small resize removes it, a large resize expands it ...
commit 8ade268cf2fde8629b51bfd1c044a83db88234cd had added this:
If the filesystem is grown to the point where the resize_inode is no
longer needed, clean it up properly so e2fsck doesn't have to.
but, it seems e2fsck does not care about this situation, either.
So, simply leave the resize_inode intact in this case, and everything
seems to be happy.
Note, this is for the 1.41.xx branch.
Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
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If the file system has a blocksize less than 64k, then don't use the
extended rec_len encoding, to be consistent with what the kernel will
do.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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Addresses-Sourceforge-Bug: #3138115
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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Addresses-Sourceforge-Bug: 3081087
Reported-by: vmo@users.sourceforge.net
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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Before we go whole-hog on 64-bit e2fsprogs, I wonder if this
is worth considering as a last-minute addition to the 1.41
stream. Currently, mke2fs will shave a block off an exactly-16T
device to fit*, but resize2fs does not do the same, leading
to some asymmetry. This patch fixes that up, and allows 16T
devices to be handled more gracefully in offline resize.
(in fact resize2fs will not even open a 16T device, today).
*commit 37d17a65ecb4615546b417038190a41bafca7c51
Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
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Flags used during RHEL/Fedora builds lead to a couple type-punning
warnings:
recovery.c: In function 'do_one_pass':
recovery.c:539: warning: dereferencing type-punned pointer will break strict-aliasing rules
./csum.c: In function 'print_csum':
./csum.c:170: warning: dereferencing type-punned pointer will break strict-aliasing rules
The two changes below fix this up.
Note that the csum test binary output changes slightly, but this does
not break any tests.
Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
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Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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As recently discussed on linux-ext4@vger.kernel.org add an option to e2fsck
to allow to replay the journal only. That will allow scripts, such as
pacemakers 'Filesystem' RA to first replay the journal and if that sets
an error state from the journal replay, further check for that error
(dumpe2fh -h | grep "Filesystem state:") and if that shows and error
to refuse to mount. It also allows automatic e2fsck scripts to first
replay the journal and on a second run after the real pass1 to passX checks
to test for the return code.
Signed-off-by: Bernd Schubert <bschubert@ddn.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
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If the user specifies "e2fsck -j UUID=XXX", e2fsck should do blkid
interpretation, since e2fsck does it with the base file system name.
So from the sake of consistency and user convenience, we should do it
here too.
Addresses-Debian-Bug: #559315
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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The boolean options "force_no" in the problems stanza of e2fsck.conf
allows a particular problem code be treated as if the user will answer
"no" to the question of whether a particular problem should be fixed
--- even if e2fsck is run with the -y option.
As an example use case, suppose a distribution had widely deployed a
version of the kernel where under some circumstances, the EOFBLOCKS_FL
flag would be left set even though it should not be left set, and a
customer had a workload which exercised the fencepost error all the
time, resulting in many large number of inodes that had EOFBLOCKS_FL
set erroneously. Enough, in fact, the e2fsck runs were taking too
long. (There was such a bug in the kernel, which was fixed by commit
58590b06d in 2.6.36).
Leaving EOFBLOCKS_FL set when it should not be isn't a huge deal, and
is certainly than having high availability timeout alerts going off
left and right. So in this case, the best fix might be to put the
following in /etc/e2fsck.conf:
[problems]
0x010060 = { # PR_1_EOFBLOCKS_FL_SET
force_no = true
no_ok = true
no_nomsg = true
}
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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When running dumpe2fs on a filesystem formatted with flex_bg, it
prints out the relative offsets for the bitmaps and inode table
badly on 64-bit systems, because the offset is computed as a
large positive number instead of being a negative numer (which
will not be printed at all):
Group 1: (Blocks 0x8000-0xffff) [INODE_UNINIT, ITABLE_ZEROED]
Block bitmap at 0x0102 (+4294934786), Inode bitmap at 0x0202 (+4294935042)
Inode table at 0x037e-0x03fa (+4294935422)
This commit prints out the relative offsets for flex_bg
groups as the offset within the reported group. This makes it
more clear where the metadata is located, rather than simply
printing some large negative number.
Group 1: (Blocks 0x8000-0xffff) [INODE_UNINIT, ITABLE_ZEROED]
Block bitmap at 0x0102 (bg #0 +258), Inode bitmap at 0x0202 (bg #0 +514)
Inode table at 0x037e-0x03fa (bg #0 +894)
Signed-off-by: Andreas Dilger <adilger@dilger.ca>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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If the user passes a file system type which is not defined in
mke2fs.conf (i.e., mke2fs -t xfs ...) change mke2fs so that it prints
a warning and aborts the run. (There is an exception for ext2, since
that file system does not need a special definition in the fs_types
section of the /etc/mke2fs.conf file.)
In addition, print a warning if there are usage types (specified using
the -T option) which are not defined in /etc/mke2fs.conf.
Addresses-Debian-Bug: #594609
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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Addresses-Debian-Bug: #599786
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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Addresses-Launchpad-Bug: #505719
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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The dependency definitions for DEPSTATIC_LIBBLKID and
DEPPROFILED_LIBBLKID incorrectly referenced the non-dependency macros
(i.e., STATIC_LIBUUID instead of DEPSTATIC_LIBUUID). This resulted in
-luuid showing up as a Makefile dependency, which is of course wrong.
Addresses-Debian-Bug: #604629
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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This fixes two possible causes for the error message:
WARNING: PROGRAMMING BUG IN E2FSCK!
OR SOME BONEHEAD (YOU) IS CHECKING A MOUNTED (LIVE) FILESYSTEM.
inode_link_info[X] is Y, inode.i_links_count is Z. They should be the same!
One cause which can trigger this message is when an inode has an
illegal link count > 65500 --- for example, 65535. This was the case
in the Debian Bug report #555456.
Another cause which could trigger this message is if an ext4 directory
previously had more than 65000 subdirectories (thus causing
i_link_count to be set to 1), but then some of the subdirectories were
deleted, such that i_link_count should now be the actual number of
subdirectories.
Addresses-Debian-Bug: #555456
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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Clarify the e2fsck.conf(5) man page to make it clear that it applies
for ext4 file systems.
Addresses-Debian-Bug: #591083
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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This avoids test failures when running on new kernels that allow lazy
itable initialization.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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Allow to specify discard in mke2fs.conf. Also change the way how to
specify default value for lazy_itable_init. It is better to have all
this defaulting done in the same place so do it in definition (as we do
with discard).
Signed-off-by: Lukas Czerner <lczerner@redhat.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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It would be nice to have consistent "discard" options in every system
tool (mount, fsck, mkfs) taking advantage of discards. Also "discard"
and "nodiscard" is more descriptive instead of just "-K" and can be
easily defaulted and it is something we can not do with "-K".
With this commit you need to specify extended option like this:
./mke2fs -T <fstype> -E nodiscard <device>
in order make a filesystem without discarding the device first. And
./mke2fs -T <fstype> -E discard <device>
respectively.
-K option is with this commit deprecated and should not be used anymore.
Signed-off-by: Lukas Czerner <lczerner@redhat.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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If MKE2FS_DEVICE_SECTSIZE is set, then this will override the logical
sector size, which is the smallest sector size that can be written
atomically by the device. (Previously MKE2FS_DEVICE_SECTSIZE set the
physical sector size, which was incorrect given its historical usage.)
The environment variable MKE2FS_DEVICE_PHYS_SECTSIZE will set the
physical sector size, which is the actual sector size used by the
device in reality.
The logical sector size is always less than or equal to the physical
sector size; and writes smaller than the physical sector size but
greather than or equal to the logical sector size will cause a
read-modify-write cycle within the device firmware (or in some
abstract layer lower than the Linux block I/O subsystem, at any rate).
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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If the device does not have an explicitly specified minimum io_size or
optimal io_size, and the physical sector size is greater than the
block size, then use the physical sector size as a better-than-nothing
hint.
This should help for SSD's that have a physical sector size of 8k or
16k (which are reportedly will be coming soon).
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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There will be SSD's out soon that have 8k or 16k phyiscal block sizes.
So don't enforce a requirement that the block size be less than the
physical block size unless the force option is given, and don't give a
warning if the user can't do anything about it (i.e., if the physical
block size is > than the page size).
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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Add check for /sys/fs/ext4/features/lazy_itable_init. If this file
exists, it should be OK to skip initializing the inode table since the
kernel will do it at mount time.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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Addresses-Debian-Bug: #580236
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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This prevents accidentally replaying and resetting the journal while
it is mounted, due to an accidental attempt to run e2fsck on an LVM
snapshot of a file system with an external journal.
Addresses-Debian-Bug: #587531
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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It's sad that this needs to be made clear....
Addresses-Debian-Bug: #594004
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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The development branch of e2fsprogs already has a code point assigned
in conflict with EXT2_FLAG_DIRECT_IO. Fix this.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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Use "[u]" instead of "[uninit]" and limit the amount of detail printed
for the extent tree blocks, so it is more similar to the format used
for direct/indirect mapped inodes.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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Allocate various memory structures to be properly aligned to avoid
needing to use a bounce buffer when doing direct I/O read/writes.
This should also help on FreeBSD systems which require aligned buffers
unconditionally.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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This adds the basic support for Direct I/O to unix_io.c, and adds a
new flag EXT_FLAG_DIRECT_IO which can be passed to ext2fs_open() or
ext2fs_open2() to request Direct I/O support.
Note that device mapper devices in Linux don't support Direct I/O, and
in some circumstances using Direct I/O can actually make performance
*worse*!
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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Mistakes on the commandline can lead to odd error messages:
# mke2fs -t ext4 -E stride=128 stripe-width=512 /dev/sda1
mke2fs: invalid blocks count - /dev/sda1
Making it a bit more explicit is more obvious:
mke2fs: invalid blocks count '/dev/sda1' on device 'stripe-width=512'
(hint, the mistake was no comma separation for -E)
Reported-by: Adam Huffman <bloch@verdurin.com>
Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
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If a device supports discard -and- returns 0s for discarded blocks,
then we can skip the inode table initialization -and- the inode table
zeroing at mkfs time, and skip the lazy init as well since they are
already zeroed out.
Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
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When a device name is misspelled, we output the full text about specifying
alternate superblock. This is slightly misleading because when the device
cannot be open because of ENOENT, this certainly won't help. So just print
that device does not exist and exit.
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
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Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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Add support for 2.6.35's new default mount options which can be
specified in the superblock.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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Addresses-Gentoo-Bug: #309909
Addresses-Debian-Bug: #583782
Addresses-Debian-Bug: #587834
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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Make error message consistent with the validity test.
Signed-off-by: Tim Small <tim@seoss.co.uk>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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This bit of the mke2fs manpage is slightly confusing:
-b block-size
Specify the size of blocks in bytes. <snip>
If block-size is negative, then mke2fs will use heuristics
to determine the appropriate block size, with the constraint
that the block size will be at least block-size bytes.
because it sounds like the block size will be at least a negative
number. Clarify just what the negative sign means.
Reported-by: Chris Frost <chris@frostnet.net>
Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
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Addresses-Debian-Bug: #588726
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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Addresses-Debian-Bug: #589345
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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Requiring an immediate pre-fsck before printing a minimum
resize size seems a bit draconian; if the fs isn't clean or marked
with error, then certainly, but for an informational minimum
size, I don't think we need to require a fsck since last mount.
I had simply copied the checks from the actual resize path,
previously.
Installers use this option (-P) to gather minimum resize info,
and requiring an actual fsck before use just seems to go too far.
Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
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