Now btrfs can delete subvolumes based in ther subvolume id. This
makes easy for the user willing to delete a subvolume that cannot be
accessed by the mount point, since btrfs allows to mount a specific
subvolume and hiding the other from the mount point.
Signed-off-by: Marcos Paulo de Souza <mpdesouza@suse.com>
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Eryu Guan <guaneryu@gmail.com>
Apparently we don't have any tests which exercise the code path in
Btrfs that has to split up direct I/Os for RAID stripes. Add one to
catch the bug fixed by "btrfs: fix RAID direct I/O reads with
alternate csums".
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Eryu Guan <guaneryu@gmail.com>
This is a testcase for a corner that I missed when trying to fix gap
extents for btrfs. We would end up with gaps if we hole punched past
isize and then extended past the gap in a specific way. This is a
simple reproducer to show the problem, and has been properly fixed by my
patches now.
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: Eryu Guan <guaneryu@gmail.com>
Test several scenarios of cloning operations where the source range
includes inline extents. They used to not be supported on btrfs
because their implementation was not straightforward, and therefore
these operations used to fail with errno EOPNOTSUPP on older
kernels.
This currently fails on any released kernel. It passes only when the
patch with the following subject is applied:
"Btrfs: implement full reflink support for inline extents"
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Eryu Guan <guaneryu@gmail.com>
This allows us to run all those tests which simulate disk failures
using dmerror.
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Eryu Guan <guaneryu@gmail.com>
Try to punch hole with unaligned size and offset when the FS is full
and mounted with nodatacow option.
Mainly holes are punched at locations which are unaligned with the
file extent boundaries when the FS is full by data. As the punching
holes at unaligned location will involve truncating blocks instead
of just dropping the extents, it shall involve reserving data and
metadata space for delalloc and so data alloc fails as the FS is
full.
btrfs_punch_hole()
btrfs_truncate_block()
btrfs_check_data_free_space() <-- ENOSPC
We don't fail punch hole if the holes are aligned with the file
extent boundaries as it shall involve just dropping the related
extents, without truncating data extent blocks.
This test was orignally merged as btrfs/172 (commit 4c2c678cd), then
Iremoved by commit 538d8a4bcc. But it's decided to bring back this
test case, now the problem is better understood and the fix is
available in the ML as below.
Link: https://patchwork.kernel.org/patch/11357415/
Reviewed-by: Filipe Manana <fdmanana@suse.com>
(cherry picked from commit 4c2c678cd5)
Signed-off-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: Eryu Guan <guaneryu@gmail.com>
This is a test to validate that we're not adjusting up i_size before
we have the appropriate file extents on disk. We had a problem
where i_size would be adjusted up without a contiguous range of file
extents, which isn't ok without a special option enabled.
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: Eryu Guan <guaneryu@gmail.com>
Test that an incremental send operation works correctly when a file has
shared extents with itself in the send snapshot, with a hole between them,
and the file size has increased in the send snapshot.
This currently fails in 5.5-rc kernels (regression) but is fixed by a
patch that has the following subject:
Btrfs: send, fix emission of invalid clone operations within the same file
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Eryu Guan <guaneryu@gmail.com>
As of the linux kernel commit fd0ddbe2509568 ("Btrfs: send, skip
backreference walking for extents with many references"), the test is no
longer dangerous and it's fast (takes 1 to 2 seconds on a modest vm with
a debug kernel). Therefore remove it from the dangerous group and add it
to the auto and quick groups as well.
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Eryu Guan <guaneryu@gmail.com>
Test removal of a subvolume via rmdir after it has been renamed into a
snapshot of the volume that originally contained the subvolume
reference.
This currently fails on btrfs but is fixed by the patch with the title
"btrfs: fix invalid removal of root ref"
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: Eryu Guan <guaneryu@gmail.com>
Signed-off-by: Eryu Guan <guaneryu@gmail.com>
Test that when we have the no-holes feature enabled and a specific
metadata layout, if we punch a hole that starts at file offset 0 and
fsync the file, after replaying the log the hole exists.
This currently fails on btrfs but is fixed by a patch for the linux
kernel with the following subject:
"Btrfs: fix missing hole after hole punching and fsync when using NO_HOLES"
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: Eryu Guan <guaneryu@gmail.com>
Signed-off-by: Eryu Guan <guaneryu@gmail.com>
Verify that both full and incremental send operations can issue
clone operations when a file has extents that are shared with itself
(at different offsets of course).
This currently fails on btrfs but is addressed by a patch for the
kernel titled:
"Btrfs: send, allow clone operations within the same file"
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: Eryu Guan <guaneryu@gmail.com>
Signed-off-by: Eryu Guan <guaneryu@gmail.com>
The test case checks if btrfs can trim adjacent extents across
adjacent block groups boundary correctly.
The test case craft the following extents layout:
| BG1 | BG2 | BG3 |
Bytenr: X-8M X X+512M X+1G X+1G+128M
|//////|//////| | |//|
There is a long existing bug that, when btrfs is trying to trim the
range at [X+512M, X+1G+128M), it will only trim [X+512M, X+1G).
This test case is the regression test for this long existing bug.
It will verify the trimmed bytes by using loopback device backed up
by a file, and checking the bytes used by the file to determine how
many bytes are trimmed.
Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: Eryu Guan <guaneryu@gmail.com>
Test if btrfs.ko sucessfully identifies and reports the missing
device, if the missed device contians no btrfs magic string.
Signed-off-by: Anand Jain <anand.jain@oracle.com>
Reviewed-by: Eryu Guan <guaneryu@gmail.com>
Signed-off-by: Eryu Guan <guaneryu@gmail.com>
Test if btrfs.ko sucessfully identifies and reports the missing
device, if the missed device contians someother btrfs.
Signed-off-by: Anand Jain <anand.jain@oracle.com>
Reviewed-by: Eryu Guan <guaneryu@gmail.com>
Signed-off-by: Eryu Guan <guaneryu@gmail.com>
I discovered a problem in btrfs where we'd end up pointing at a block we
hadn't written out yet. This is triggered by a race when two different
files on two different subvolumes fsync. This test exercises this path
with dm-log-writes, and then replays the log at every FUA to verify the
file system is still mountable and the log is replayable.
This test is to verify the fix
btrfs: fix incorrect updating of log root tree
actually fixed the problem.
Reviewed-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Eryu Guan <guaneryu@gmail.com>
Add basic test to ensure btrfs conversion functionality is tested.
This test exercies conversion to all possible types of the data
portion. This is sufficient since from the POV of relocation we are
only moving blockgroups.
v5.3 and later kernel needs the following patch to pass the test
btrfs: Fix a regression which we can't convert to SINGLE profile
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Eryu Guan <guaneryu@gmail.com>
Add a regression test to check if btrfs can handle high devid.
The test will add and remove devices to a btrfs fs, so that the devid
will increase to uncommon but still valid values.
The regression is introduced by kernel commit ab4ba2e13346 ("btrfs:
tree-checker: Verify dev item").
The fix is titled "btrfs: tree-checker: Fix wrong check on max devid".
Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: Eryu Guan <guaneryu@gmail.com>
Add a test case where falloc is called on multiple holes with qgroup
enabled.
This can cause qgroup reserved data space leak and false EDQUOT
error even we're not reaching the limit.
The fix is titled:
"btrfs: qgroup: Fix the wrong target io_tree when freeing
reserved data space"
Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: Eryu Guan <guaneryu@gmail.com>
We have generic dm-logwrites with fsstress test case (generic/482),
but it doesn't cover fs specific operations like btrfs snapshot
creation and deletion.
Furthermore, that test is not heavy enough to bump btrfs tree height
by its short runtime.
And finally, btrfs check doesn't consider dirty log as an error,
unlike ext*/xfs, that's to say we don't need to mount the fs to
replay the log, but just running btrfs check on the fs is enough.
So introduce a similar test case but for btrfs only.
The test case will stress btrfs by:
- Use small nodesize to bump tree height
- Create a base tree which is already high enough
- Trim tree blocks to find possible trim bugs
- Call snapshot creation and deletion along with fsstress
Also it includes certain workaround for btrfs:
- Allow _log_writes_mkfs to accept extra mkfs options
- Use no-holes feature
To avoid missing hole file extents.
Although that behavior doesn't follow the on-disk format spec, it
doesn't cause data loss. And will follow the new on-disk format spec
of no-holes feature, so it's better to workaround it.
And an optimization for btrfs only:
- Use replay-log --fsck/--check command
Since dm-log-writes records bios sequentially, there is no way to
locate certain entry unless we iterate all entries.
This is becoming a big performance penalty if we replay certain a
range, check the fs, then re-execute replay-log to replay another
range.
We need to records the previous entry location, or we need to
re-iterate all previous entries.
Thankfully, replay-log has already address it by providing --fsck and
--check command, thus we don't need to break replay-log command.
Please note, for fast storage (e.g. fast NVME or unsafe cache mode),
it's recommended to use log devices larger than 15G, or we can't
record the full log of just 30s fsstress run.
Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: Eryu Guan <guaneryu@gmail.com>
Test that an incremental send operation works after deduplicating into the
same file in both the parent and send snapshots.
This currently fails on btrfs and a kernel patch to fix it was submitted
with the subject:
Btrfs: fix incremental send failure after deduplication
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: Eryu Guan <guaneryu@gmail.com>
Signed-off-by: Eryu Guan <guaneryu@gmail.com>
There are two regressions related to balance resume:
- Kernel NULL pointer dereference at mount time
Introduced in v5.0
- Kernel BUG_ON() just after mount
Introduced in v5.1
The kernel fixes are:
"btrfs: qgroup: Check if @bg is NULL to avoid NULL pointer
dereference"
"btrfs: reloc: Also queue orphan reloc tree for cleanup to
avoid BUG_ON()"
Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: Eryu Guan <guaneryu@gmail.com>
Test that an incremental send receive does not issue clone operations
that attempt to clone the last block of a file, with a size not aligned to
the filesystem's sector size, into the middle of some other file. Such
clone request causes the receiver to fail (with EINVAL), for kernels that
include commit ac765f83f1397646 ("Btrfs: fix data corruption due to
cloning of eof block"), or cause silent data corruption for older kernels.
This test is motived by a recent regression introduced in kernel 5.2-rc1,
commit 040ee6120cb6706 ("Btrfs: send, improve clone range"), and the
following patch fixes it:
"Btrfs: incremental send, fix emission of invalid clone perations"
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: Eryu Guan <guaneryu@gmail.com>
Signed-off-by: Eryu Guan <guaneryu@gmail.com>
Test that an incremental send with not corrupt data when the source
filesystem has the no-holes feature enabled, a file has prealloc
(unwritten) extents that start after its size and hole is punched (after
the first snapshot is made) that removes all extents from some offset up
to the file's size.
This currently fails on any kernel version starting from 3.16, and it's
by a patch titled:
"Btrfs: incremental send, fix file corruption when no-holes feature is enabled"
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: Eryu Guan <guaneryu@gmail.com>
Signed-off-by: Eryu Guan <guaneryu@gmail.com>
Marcos Paulo de Souza
Omar Sandoval
Josef Bacik
Filipe Manana
Theodore Ts'o
Anand Jain
Qu Wenruo
Nikolay Borisov