platform_external_e2fsprogs/tests/m_rootdir, branch master

ext4: fix tests to account for new dumpe2fs output

2021-01-21T15:59:38+00:00

dumpe2fs tool now is capable of reporting number of fast commit
blocks. There were slight changes in the output of dumpe2fs outside of
fast commits. This patch fixes the regression tests to expect the new
output.

Signed-off-by: Harshad Shirwadkar 
Signed-off-by: Theodore Ts'o

mke2fs: set overhead in super block

2020-01-27T04:10:05+00:00

If overhead is not recorded in the super block, it is calculated
during mount in kernel, for bigalloc file systems it takes
O(groups**2) in time.  For a 1PB device with 32K cluster size it takes
~12 mins to mount, with most of the time spent on figuring out
overhead.

While we can not improve the overhead algorithm in kernel due to the
nature of bigalloc, we can work out the overhead during mke2fs and set
it in the super block, avoiding calculating it every time when it
mounts.

Overhead is s_first_data_block plus internal journal blocks plus the
block and inode bitmaps, inode table, super block backups and group
descriptor blocks for every group.  This patch introduces
ext2fs_count_used_clusters(), which calculates the clusters used in
the block bitmap for the given range.

When bad blocks are involved, it gets tricky because the blocks
counted as overhead and the bad blocks can end up in the same
allocation cluster.  In this case we will unmark the bad blocks from
the block bitmap, convert to cluster bitmap and get the overhead, then
mark the bad blocks back in the cluster bitmap.

Reset the overhead to zero when resizing, we can not simply count the
used blocks as overhead like we do when mke2fs.  The overhead can be
calculated by kernel side during mount.

Signed-off-by: Li Dongyang 
Signed-off-by: Theodore Ts'o

tests: don't run sed multiple times on test output

2018-06-22T21:59:35+00:00

Don't call sed multiple times on the output, and avoid the use
of temporary files, or if possible.  It would be convenient to
use "sed -i" to only update the output file once, but this is
not portable to all platforms.

[ Fixed a few test regression failures --tytso ]

Signed-off-by: Andreas Dilger 
Signed-off-by: Theodore Ts'o

tests: clean up $DEBUGFS_EXE usage in scripts

2018-06-22T16:31:42+00:00

Instead of putting the entire test script under an implicit
"if test -x $DEBUGFS_EXE" conditional (sometimes indenting
the code, and sometimes not), rather check for the reverse
and exit the test script early if $DEBUGFS_EXE is missing.

In some places, tests were running $DEBUGFS_EXE directly,
when they should be running $DEBUGFS (which will run with
Fortify, or other options).

[ Fixed up missing exit statement in f_detect_junk. --tytso ]

Signed-off-by: Andreas Dilger 
Signed-off-by: Theodore Ts'o

Add project quota support

2016-03-06T22:33:39+00:00

This patch adds project quota support. An new quota type PRJQUOTA(2)
is added. EXT4_PRJ_QUOTA_INO(11) is reserved for project quota inode.
The super block reservers an field s_prj_quota_inum for saving
project quota inode. And each inode adds an internal field i_projid
for saving its project ID.

Signed-off-by: Li Xi 
Signed-off-by: Wang Shilong 
Signed-off-by: Theodore Ts'o

mke2fs: add simple tests and re-alphabetize mke2fs manpage options

2015-05-05T14:52:01+00:00

Add some simple tests for mke2fs -d (create image from dir) and make
the manpage options appear in alphabetic order.

Signed-off-by: Darrick J. Wong 
Signed-off-by: Theodore Ts'o