Reloc tree is a special tree with very short life span. It acts as a
special snapshot for any tree, with related nodes/leaves or EXTENT_DATA
modified to point to new position.
Considering the short life span and its special purpose, it should be
quite reasonable to keep them as both corner case for fsck and
educational dump for anyone interested in relocation.
Signed-off-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
For snapshot shared tree blocks with source subvolume, the keyed backref
counter only counts the exclusive owned references.
In the following case, 258 is a snapshot of 257, which inherits all the
reference to this data extent.
------
item 4 key (12582912 EXTENT_ITEM 524288) itemoff 3741 itemsize 140
refs 179 gen 9 flags DATA
extent data backref root 257 objectid 258 offset 0 count 49
extent data backref root 257 objectid 257 offset 0 count 1
extent data backref root 256 objectid 258 offset 0 count 128
extent data backref root 256 objectid 257 offset 0 count 1
------
However lowmem mode used to iterate the whole inode to find all
references, and doesn't care if a reference is already counted by the
shared tree block.
Add the test case to check it.
Signed-off-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
The image is dumped by modifying kernel to sleep long enough before
merging relocation trees, so we can just copy the whole image to other
place before kernel begins to merge reloc trees.
And the base image is created by the following script to bump metadata
size:
------
dev=~/test.img
mnt=/mnt/btrfs
umount $mnt &> /dev/null
fallocate -l 128M $dev
mkfs.btrfs -f -n 4k -m single -d single $dev
mount $dev $mnt -o nospace_cache,max_inline=2048
btrfs subvolume create $mnt/src
for i in $(seq -w 0 128); do
xfs_io -f -c "pwrite 0 2k" $mnt/src/file_$i > /dev/null
done
for i in $(seq -w 0 64); do
btrfs subvolume snapshot $mnt/src/ $mnt/snapshot_$i
touch $mnt/snapshot_$i/new
done
sync
------
The image triggers several corner cases that the old lowmem mode didn't
consider.
Like metadata backref with FULL_BACKREF flag and only SHARED_BLOCK_REF
backrefs for metadata. And several tree reloc trees with shared
leaves/nodes to confuse old lowmem mode.
Signed-off-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Introduce a new test image, which has an extent item with no inlined
extent data ref, but all keyed extent data ref.
Only in this case we can trigger fase data extent backref lost bug in
lowmem mode.
Signed-off-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Add a image which can reproduce the extent item referencer count
mismatch false alert for lowmem mode.
Reported-by: Marc MERLIN <marc@merlins.org>
Signed-off-by: Lu Fengqi <lufq.fnst@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Add a image that the inlined extent coexist with the regular extent.
Reported-by: Marc MERLIN <marc@merlins.org>
Signed-off-by: Lu Fengqi <lufq.fnst@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.com>
The image has 2 problems mixed:
1) Too small super total_bytes
This super total_bytes is manually modified to create such problem.
2) Unaligned dev item total_bytes
This is created by v4.12 kernel, with 128M + 2K device added, and
original device removed.
Then we can create such image with unaligned dev item total_bytes.
Signed-off-by: Qu Wenruo <quwenruo.btrfs@gmx.com>
Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Add new test to check functionality of subvol get/set-default.
Signed-off-by: Tomohiro Misono <misono.tomohiro@jp.fujitsu.com>
[ fix style issues, add missing SUDO_HELPER ]
Signed-off-by: David Sterba <dsterba@suse.com>
This case is for avoiding crash in lowmem check mode.
Field type of extent_inline_ref in an extent is corrupted.
Signed-off-by: Su Yue <suy.fnst@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Since lowmem mode can repair certain corruptions (mostly in fs tree),
insert a beacon into each fsck test cases to allow some of them be
tested in lowmem mode.
With this patch, fsck option override will check the beacon file
".lowmem_repairable" in the same directory of the test image, and if the
beacon exists, then it will also run lowmem mode repair to repair the
image.
Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Lowmem mode only repairs few cases which has a beacon file
".lowmem_repairable" in the case' directory.
However, defining TEST_ENABLE_OVERRIDE=true in command line does work
in above strategy.
Because _skip_spec() in tests/common.local isn't interpreted by shell
in that case.
Solve it by making _skip_spec() always be defined in common.local.
Reported-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Su Yue <suy.fnst@cn.fujitsu.com>
[ keep the _skip_spec check ]
Signed-off-by: David Sterba <dsterba@suse.com>
kernel 4.14 introduces new function for checking if all chunks is ok for
mount with -o degraded option.
commit 21634a19f646 ("btrfs: Introduce a function to check if all
chunks a OK for degraded rw mount")
As a result, raid0 profile cannot be mounted with -o degraded on 4.14.
This causes failure of the misc-test 011 "delete missing device".
Fix this by using raid1 profile for both data and metadata.
This also should work for kernel before 4.13.
Signed-off-by: Tomohiro Misono <misono.tomohiro@jp.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.com>
BCP 78 applies to RFC 6234, but sha224-256.c is Simplified BSD.
This causes the following lintian error when building on Debian and
Debian derivatives:
E: btrfs-progs source: license-problem-non-free-RFC-BCP78
tests/sha224-256.c
Please consult the following email from debian-legal@lists.debian.org
for more information:
https://lists.debian.org/debian-legal/2017/08/msg00004.html
Signed-off-by: Nicholas D Steeves <nsteeves@gmail.com>
[ I've copied too much from the RFC that's not related to the code,
covered by the explicit copyright notice in the file ]
Signed-off-by: David Sterba <dsterba@suse.com>
The test cli/007-check-force reports something like:
$ type -p '--string that starts with dashes'
bash: type: --: invalid option
Add the option/argument separator.
Signed-off-by: David Sterba <dsterba@suse.com>
Adds tests for the new features based on a prebuilt btrfs image with a
zstd compressed file.
Split from the previous patch.
Signed-off-by: Nick Terrell <terrelln@fb.com>
[ with some cleanups ]
Signed-off-by: David Sterba <dsterba@suse.com>
The sanity check in run_mustfail does not work as expected and allowed
the command to continue without the missing parameter
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=196893
Signed-off-by: David Sterba <dsterba@suse.com>
This new test checks inspect-internal rootid
- handle path to subvolume/directory/file as an argument
- get different id for each subvolume
- get the expected id for each file/directory (i.e. the same as
containing subvolume)
Signed-off-by: Tomohiro Misono <misono.tomohiro@jp.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.com>
The post-rollback helper still assumes just extN, we need an extra
argument that'll get passed to fsck. Change all callsites at once so the
tests do not fail temporarily.
Signed-off-by: David Sterba <dsterba@suse.com>
First patch causes test-convert fails. This is because
generate_dataset() creates a name containing trailing spaces for
"slow_symlink" type, and cause getfacl error in convert_test_perm().
(This is not noticed since original run_check_stdout() throws away the
error.)
Fix this by use space for delimiter for cut.
Signed-off-by: Tomohiro Misono <misono.tomohiro@jp.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.com>
run_check_stdout() uses "... | tee ... || _fail". However, since tee
won't fail, _fail() is not called even if first command fails.
Fix this by checking PIPESTATUS in the end.
Signed-off-by: Tomohiro Misono <misono.tomohiro@jp.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Add test case which checks if -r|--rootdir mkfs option can handle
symlink/char/block/fifo files.
Signed-off-by: Qu Wenruo <quwenruo.btrfs@gmx.com>
Signed-off-by: David Sterba <dsterba@suse.com>
The convert tests generate lots of log material, travis CI has limit 4MB
so we don't see anything useful when a late test fails.
Signed-off-by: David Sterba <dsterba@suse.com>
Test failure in convert tests with log dump does not happen because
_fail is called before that and exits. Other test types are ok.
Signed-off-by: David Sterba <dsterba@suse.com>
Many of the test cases for convert apply regardless of what the source
file system is and using ext4 is sufficient. I've included several
test cases that are reiserfs-specific.
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
[ patch split from the previous one, minor cleanups in common.convert ]
Signed-off-by: David Sterba <dsterba@suse.com>
type -p returns an empty string for nonexistent commands, but the -f
test on an empty string does not behave the same on all shells. To be
safe, use the quoted value.
Signed-off-by: David Sterba <dsterba@suse.com>
This function has an extra argument and can get forgotten, add a sanity
check so the bad usage can be caught during development.
Signed-off-by: David Sterba <dsterba@suse.com>
