The online manual pages of the btrfs utilities seem to have been moved to
`readthedocs.io`; update references in the README accordingly.
Author: Guillaume Legrand
Pull-request: #500
Signed-off-by: David Sterba <dsterba@suse.com>
swapon fails with an unclear error message, add some hints were to look
for more information.
Author: Torstein Eide
Pull-request: #491
Signed-off-by: David Sterba <dsterba@suse.com>
Mention the version support for the cross-mount support, since 5.18.
Author: AtticFinder65536
Pull-request: #480
Signed-off-by: David Sterba <dsterba@suse.com>
The radix-tree is not used in userspace code. In kernel it's for
tracking unpersisted and in-memory structures and has been replaced by
the xarray.
Signed-off-by: David Sterba <dsterba@suse.com>
The random-test exercises the b-tree operations but hasn't been in use
for a long time and we won't probably resurrect it. Also it's the only
user of the radix_tree structures, that are otherwise used in the kernel
code, it needs the kerne-lib radix-tree implementation. Let's remove it
as it's basically dead code.
Signed-off-by: David Sterba <dsterba@suse.com>
The tool IWYU (include what you use) suggests to remove and add some
includes. Update the includes of implementation files only.
Signed-off-by: David Sterba <dsterba@suse.com>
Lots of code still uses fprintf(stderr, "...") that should be the
error() helper. The kernel-shared code is left out of the conversion for
now.
Signed-off-by: David Sterba <dsterba@suse.com>
The tool IWYU (include what you use) suggests to remove and add some
includes. This is only partial to avoid accidental build breakage, the
includes are entangled and will have to be cleaned in the future again.
Signed-off-by: David Sterba <dsterba@suse.com>
The features are split to -O and -R but it does not make much sense from
user POV, there are different levels of compatibility but it does not
need to be selected that way. Merge the tables into one but hide it
behind experimental build until the conversion is complete.
Signed-off-by: David Sterba <dsterba@suse.com>
Some tests don't use the /tmp temporary files and store it locally in
the test directory. To support NFS this needs to be created by a few
commands. To avoid accidental breakage add a convenience helper.
Signed-off-by: David Sterba <dsterba@suse.com>
The preferred order:
- system headers
- standard headers
- libraries
- kernel library
- kernel shared
- common headers
- other tools
- own headers
Signed-off-by: David Sterba <dsterba@suse.com>
All files include the <btrfsutil.h> which could be confused with the
system-wide installation. Drop the -I path from build and use full path
for any libbtrfsutil headers.
Signed-off-by: David Sterba <dsterba@suse.com>
The preferred order:
- system headers
- standard headers
- libraries
- kernel library
- kernel shared
- common headers
- other tools
- own headers
Signed-off-by: David Sterba <dsterba@suse.com>
The size reported as Unallocated in the table was different that the one
in the listing, calculated differently. The values should reflect the
unallocated area available for the filesystem - not necessarily the
total size of the device. If there's such slack space it's reported
separately.
The values in the table mean:
- Unallocated: block device size - slack - allocated
- Total: block device size - slack
- Slack: block device size - filesystem
The new columns make the table wider but the values are deemed to be
important by users and for filesystems with normal profiles it fits
under reasonable line width. During balance or with multiple profiles it
can get wider but this should not be a serious problem.
Example output:
Overall:
Device size: 13.00GiB
Device allocated: 536.00MiB
Device unallocated: 12.48GiB
Device missing: 0.00B
Device slack: 1.00GiB
Used: 2.31MiB
Free (estimated): 12.48GiB (min: 6.24GiB)
Free (statfs, df): 12.48GiB
Data ratio: 1.00
Metadata ratio: 2.00
Global reserve: 3.50MiB (used: 0.00B)
Multiple profiles: no
Data Metadata System
Id Path single DUP DUP Unallocated Total Slack
-- ---------- ------- --------- -------- ----------- -------- -------
1 /dev/loop0 8.00MiB 512.00MiB 16.00MiB 2.48GiB 3.00GiB 1.00GiB
2 /dev/loop1 - - - 10.00GiB 10.00GiB -
-- ---------- ------- --------- -------- ----------- -------- -------
Total 8.00MiB 256.00MiB 8.00MiB 12.48GiB 13.00GiB 1.00GiB
Used 2.00MiB 144.00KiB 16.00KiB
Issue: #508
Pull-request: #509 (partial fix)
Signed-off-by: David Sterba <dsterba@suse.com>
The stream dump escapes the path on which the operation is done but
there are a some that use another path that's the target. A file with
eg. a newline then does not format properly on one line as expected.
Extend the printing helpers to skip printing the newline and then print
the escaped path manually.
Issue: #510
Signed-off-by: David Sterba <dsterba@suse.com>
The preferred order:
- system headers
- standard headers
- libraries
- kernel library
- kernel shared
- common headers
- other tools
- own headers
Signed-off-by: David Sterba <dsterba@suse.com>
The preferred order:
- system headers
- standard headers
- libraries
- kernel library
- kernel shared
- common headers
- other tools
- own headers
Signed-off-by: David Sterba <dsterba@suse.com>
The preferred order:
- system headers
- standard headers
- libraries
- kernel library
- kernel shared
- common headers
- other tools
- own headers
Signed-off-by: David Sterba <dsterba@suse.com>
The preferred order:
- system headers
- standard headers
- libraries
- kernel library
- kernel shared
- common headers
- other tools
- own headers
Signed-off-by: David Sterba <dsterba@suse.com>
The preferred order:
- system headers
- standard headers
- libraries
- kernel library
- kernel shared
- common headers
- other tools
- own headers
Signed-off-by: David Sterba <dsterba@suse.com>
The source dir points to the argv data, we should make a copy to be sure
it won't change due to further processing.
Signed-off-by: David Sterba <dsterba@suse.com>
The helper parse_label is used only once and is trivial. Open code it in
the argument parsing, also to make the exit() is more visible.
Signed-off-by: David Sterba <dsterba@suse.com>
There's a helper to parse profile name and exits on error. As this is a
trivial helper we can open code it and adapt the error message to be
more specific what failed.
Signed-off-by: David Sterba <dsterba@suse.com>
[BUG]
If using btrfs-corrupt-block to corrupt the generation of a tree
block (in my example, it's csum root), it will cause csum mismatch other
than the expected transid mismatch:
# ./btrfs-corrupt-block --metadata-block 30474240 -f generation \
/dev/test/scratch1
# btrfs check /dev/test/scratch1
Opening filesystem to check...
checksum verify failed on 30474240 wanted 0xb3e8059a found 0xb4a4b45c
checksum verify failed on 30474240 wanted 0xb3e8059a found 0xb4a4b45c
checksum verify failed on 30474240 wanted 0xb3e8059a found 0xb4a4b45c
Csum didn't match
ERROR: could not setup csum tree
ERROR: cannot open file system
[CAUSE]
Inside the switch branch BTRFS_METADATA_BLOCK_GENERATION in
corrupt_metadata_block(), we just set the generation and trigger
write_and_map_eb().
However write_and_map_eb() doesn't re-generate the checksum by itself,
thus we make the victim tree block to have a stale checksum.
[FIX]
Just call csum_tree_block_size() before write_and_map_eb().
Now the corrupted fs have the expected corruption pattern now:
# btrfs check /dev/test/scratch1
Opening filesystem to check...
parent transid verify failed on 30474240 wanted 7 found 11814770867473404344
parent transid verify failed on 30474240 wanted 7 found 11814770867473404344
parent transid verify failed on 30474240 wanted 7 found 11814770867473404344
Ignoring transid failure
...
Signed-off-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
The function csum_tree_block() is not really utilized by anyone, all
current callers just use csum_tree_block_size().
Furthermore there is a stale definition in common/utils.h which is using
the old "struct btrfs_root" as the first argument, while we have already
migrated to "struct btrfs_fs_info".
So just unexport csum_tree_block() and remove the stale definition.
Signed-off-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
