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Group Name:		Description:
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all			All known tests, automatically generated by ./check at
			runtime
auto			Tests that should be run automatically.  These should
			not require more than ~5 minutes to run.
quick			Tests that should run in under 30 seconds.
deprecated		Old tests that should not be run.

acl			Access Control Lists
admin			xfs_admin functionality
aio			general libaio async io tests
atime			file access time
attr			extended attributes
attr2			xfs v2 extended aributes
balance			btrfs tree rebalance
bigtime			timestamps beyond the year 2038
blockdev		block device functionality
broken			broken tests
cap			Linux capabilities
casefold		directory name casefolding
ci			ASCII case-insensitive directory name lookups
clone			FICLONE/FICLONERANGE ioctls
clone_stress		stress testing FICLONE/FICLONERANGE
collapse		fallocate FALLOC_FL_COLLAPSE_RANGE
compress		file compression
convert			btrfs ext[34] conversion tool
copy			xfs_copy functionality
copy_range		copy_file_range syscall
copyup			overlayfs copyup
dangerous		dangerous test that can crash the system
dangerous_bothrepair	fuzzers to evaluate xfs_scrub + xfs_repair repair
dangerous_fuzzers	fuzzers that can crash your computer
dangerous_norepair	fuzzers to evaluate kernel metadata verifiers
dangerous_online_repair	fuzzers to evaluate xfs_scrub online repair
dangerous_repair	fuzzers to evaluate xfs_repair offline repair
dangerous_scrub		fuzzers to evaluate xfs_scrub checking
data			data loss checkers
dax			direct access mode for persistent memory files
db			xfs_db functional tests
dedupe			FIEDEDUPERANGE ioctl
defrag			filesystem defragmenters
dir			directory test functions
dump			dump and restore utilities
eio			IO error reporting
encrypt			encrypted file contents
enospc			ENOSPC error reporting
exportfs		file handles
filestreams		XFS filestreams allocator
freeze			filesystem freeze tests
fsck			general fsck tests
fsmap			FS_IOC_GETFSMAP ioctl
fsr			XFS free space reorganizer
fuzzers			filesystem fuzz tests
growfs			increasing the size of a filesystem
hardlink		hardlinks
health			XFS health reporting
idmapped		idmapped mount functionality
inobtcount		XFS inode btree count tests
insert			fallocate FALLOC_FL_INSERT_RANGE
ioctl			general ioctl tests
io_uring		general io_uring async io tests
label			filesystem labelling
limit			resource limits
locks			file locking
log			metadata logging
logprint		xfs_logprint functional tests
long_rw			long-soak read write IO path exercisers
metacopy		overlayfs metadata-only copy-up
metadata		filesystem metadata update exercisers
metadump		xfs_metadump/xfs_mdrestore functionality
mkfs			filesystem formatting tools
mount			mount option and functionality checks
nested			nested overlayfs instances
nfs4_acl		NFSv4 access control lists
nonsamefs		overlayfs layers on different filesystems
online_repair		online repair functionality tests
other			dumping ground, do not add more tests to this group
pattern			specific IO pattern tests
perms			access control and permission checking
pipe			pipe functionality
pnfs			PNFS
posix			POSIX behavior conformance
prealloc		fallocate for preallocating unwritten space
preallocrw		fallocate, then read and write
punch			fallocate FALLOC_FL_PUNCH_HOLE
qgroup			btrfs qgroup feature
quota			filesystem usage quotas
raid			btrfs RAID
read_repair		btrfs error correction on read failure
realtime		XFS realtime volumes
recoveryloop		crash recovery loops
redirect		overlayfs redirect_dir feature
remote			dump and restore with a remote tape
remount			remounting filesystems
rename			rename system call
repair			xfs_repair functional tests
replace			btrfs device replace
replay			dm-logwrites replays
resize			resize2fs functionality tests
richacl			rich ACL feature
rmap			XFS reverse mapping exercisers
rotate			overlayfs upper layer rotate tests from the unionmount
			test suite
rw			read/write IO tests
samefs			overlayfs when all layers are on the same fs
scrub			filesystem metadata scrubbers
seed			btrfs seeded filesystems
seek			llseek functionality
send			btrfs send/receive
shrinkfs		decreasing the size of a filesystem
shutdown		FS_IOC_SHUTDOWN ioctl
snapshot		btrfs snapshots
soak			long running soak tests of any kind
spaceman		xfs_spaceman functional tests
splice			splice system call
stress			fsstress filesystem exerciser
subvol			btrfs subvolumes
swap			swap files
symlink			symbolic links
tape			dump and restore with a tape
thin			thin provisioning
trim			FITRIM ioctl
udf			UDF functionality tests
union			tests from the unionmount test suite
unlink			O_TMPFILE unlinked files
unshare			fallocate FALLOC_FL_UNSHARE_RANGE
v2log			XFS v2 log format tests
verity			fsverity
volume			btrfs volume management
whiteout		overlayfs whiteout functionality
xino			overlayfs xino feature
zero			fallocate FALLOC_FL_ZERO_RANGE
zone			zoned (SMR) device support
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