resize2fs does its magic by loading a filesystem, duplicating the
in-memory image of that fs, moving relevant blocks out of the way of
whatever new metadata get created, and finally writing everything back
out to disk. Enabling 64bit mode enlarges the group descriptors,
which makes resize2fs a reasonable vehicle for taking care of the rest
of the bookkeeping requirements, so add to resize2fs the ability to
convert a filesystem to 64bit mode and back.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Cc: TR Reardon <thomas_reardon@hotmail.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Mostly by adding static and removing excess extern qualifiers. Also
convert a few remaining non-ANSI function declarations to ANSI.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Add a new debug flag which prints how much time is consumed by the
various parts of resize2fs's processing.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
If we need to shrink the inode table, we need to make sure the inodes
contained in the part of the inode table we are vacating don't get
reused as part of the filesystem shrink operation. This wasn't a
problem with ext3 filesystems, since the inode table was located in
the block group that was going away, so that location was not eligible
for reallocation.
However with ext4 filesystems with flex_bg enabled, it's possible for
a portion of the inode table in the last flex_bg group to be
deallocated, but in a part of the filesystem which could be used as
data blocks. So we must mark those blocks as reserved to prevent
their reuse, and adjust the minimum filesystem size calculation to
assure that we don't shrink a filesystem too small for the resize
operation to succeed.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Add the -P option to print the minimum filesystem size and exit.
Add the -M option to force resizing the filesystem to the minimum
filesystem size.
Signed-off-by: Josef Back <jbacik@redhat.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
than the requested size, then we will attempt to
transparently extend the filesize in a sparse fashion by
writing a block at the end of the requested part of the
filesystem.
main.c (main), resize2fs.c (resize_fs), resize2fs.h: Change the
function prototype of resize_fs() so that it can modify
the new_size parameter with the actual new size of the
filesystem after the resize operation. (This can
sometimes be less than the requested new size if there
isn't enough space to create the necessary block group
metadata for that last bit of disk space.) Resize2fs now
prints the actual new size of the filesystem when it finishes.
badblocks.c, chattr.c, dumpe2fs.c, e2image.c, findsuper.c, lsattr.c,
mke2fs.c, mklost+found.c, tune2fs.c, util.c: Change location of
ext2_fs.h to be ext2fs/ext2_fs.h
ChangeLog, Makefile.in, resize2fs.h:
resize2fs.h: Change location of ext2_fs.h to be ext2fs/ext2_fs.h
ChangeLog, Makefile.in, debugfs.h:
debugfs.h: Change location of ext2_fs.h to be ext2fs/ext2_fs.h
ChangeLog, Makefile.in, e2fsck.h, scantest.c:
e2fsck.h, scantest.c: Change location of ext2_fs.h to be
ext2fs/ext2_fs.h
ChangeLog, Makefile.in, tst_uuid.c, uuid_time.c:
tst_uuid.c, uuid_time.c: Remove unneeded #include of ext2_fs.h
ChangeLog, Makefile.in, e2p.h:
e2p.h: Change location of ext2_fs.h to be ext2fs/ext2_fs.h
ChangeLog, Makefile.in, test_icount.c, test_rel.c:
test_icount.c, test_rel.c: Change location of ext2_fs.h to be
ext2fs/ext2_fs.h
Update copyright of files in preparation for release of resize2fs.
Also removed the (obsolete) beta-test check that had been in the code,
as well as the old spec files used to package the separate
distribution of resize2fs.
Makefile.in: No longer build resize2fs.static, since there's no real
point in it any more.
Modified Files:
ChangeLog Makefile.in extent.c main.c resize2fs.8.in
resize2fs.c resize2fs.h sim_progress.c test_extent.c
Removed Files:
e2fsprogs-1.12.spec pq.gif resize2fs.spec version.h
mk_cmds.sh.in: Fix error message so that it says mk_cmds's template
files instead of compile_et's template files.
ChangeLog, resize2fs.h:
resize2fs.h: Protect include of unistd.h with HAVE_UNISTD_H.
e2fsprogs.lsm:
Updated for 1.12 release.
Major reoganization of how resizing works. Functions in
ext2_block_move.c, and ext2_inode_move.c moved into resize2fs.c.
Multiple passes in those two files also combined into a single inode
scanning pass. Made the inode table moving function better handling
the case where it needs to abort mid-operation. When moving blocks
around, made the block allocation function preferentially avoid the
old group descriptor blocks, to make resize2fs more robust.
resize2fs.h: If EXT2_FLAT_INCLUDES is defined, then assume all
of the ext2-specific header files are in a flat directory.
ext2_block_move.c, ext2_inode_move.c, extent.c, resize2fs.c,
resize2fs.h: Rename variables named "new" to "new_block",
"new_inode", or "new_loc" to avoid C++ reserved word
clash.
ext2_block_move.c, ext2_inode_move.c, extent.c, resize2fs.c,
sim_progress.c: Use ext2fs_get_memory(),
ext2fs_free_memory(), et. al., instead of malloc() and
free().
ext2_block_move.c, ext2_inode_move.c, extent.c: Explicitly cast
all assignments from void * to be compatible with C++.
banalysis.c, banalysis.h, ext2_inode_move.c, ext2_block_move.c:
Change private to priv_data to avoid C++ namespace clash.
ChangeLog, badblocks.8.in:
badblocks.8.in: Add documentation for the -s option.
Allow people to set the version.h to something like 1.10-PLUS.
.del-inodemap.c~24510e64, main.c, resize2fs.c, resize2fs.h:
More interim work. All is functioning except progress meter.
bmove.c (ext2fs_move_blocks): New function which takes a bitmap of
blocks which need to be moved, and moves those blocks to another
location in the filesystem.
rs_bitmap.c (ext2fs_resize_generic_bitmap): When expanding a bitmap,
make sure all of the new parts of the bitmap are zero.
bitmaps.c (ext2fs_copy_bitmap): Fix bug; the destination bitmap wasn't
being returned to the caller.
alloc_tables.c (ext2fs_allocate_group_table): Add new function
ext2fs_allocate_group_table() which sets the group tables for a
particular block group. The relevant code was factored out of
ext2fs_allocate_tables().
dblist.c (make_dblist): Adjust the initial size of the directory block
list to be a bit more realize (ten plus twice the number of
directories in the filesystem).
Check in interim work.
configure.in (rmakefile): Added (optional) private directory for resize2fs.
Makefile.in: Change recursive descent rules to check to see if a
directory exists before trying to make it.
Many files:
Initial checkin of work done to date.
Vitaliy Filippov
Darrick J. Wong