Commit Graph

6639 Commits

Author SHA1 Message Date
Anand Jain
4673ec037e btrfs-progs: kernel-shared: track missing devices number
Maintain the btrfs_fs_devices::missing counter to track the number of
missing devices, similar to what kernel does.

Signed-off-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>
2023-08-23 19:36:31 +02:00
Anand Jain
b8b0f1ec41 btrfs-progs: fix duplicate missing device
btrfs_read_sys_array() adds a missing device with its devid only.  So,
any subsequent btrfs_find_device(..devid, uuid) call in the
open_ctree_fd() still fails resulting in addition of duplicate struct
btrfs_device to the list, as shown below.

  open_ctree_fd()
  ::
   btrfs_setup_chunk_tree_and_device_map()
    btrfs_read_sys_array()
     read_one_chunk()
      btrfs_find_device()
      fill_missing_device() <--- dev_uuid wasn't updated
      list_add()
    btrfs_read_chunk_tree
      read_one_dev()
	 btrfs_find_device(..,devid, dev_uuid,..); <-- fails
	 list_add
	 fill_device_from_item(leaf, dev_item, device);

This ends up having two btrfs_device for the same missing devid.

For example:

(btrfstune is compiled with a boilerplate code to dump the device list,
as in the mailing list).

Before:

There are two device with devid 1.

$ btrfstune -m ./disk4.raw
warning, device 1 is missing
[fsid: 95bbc163-671a-4a0a-bd34-03a65e4b338c]
	size:			120
	metadata_uuid:		95bbc163-671a-4a0a-bd34-03a65e4b338c
	fs_devs_addr:		0xdb64e0
	total_rw_bytes:		1048576000
	[[UUID: 703a4cac-bca0-47e4-98f6-55e530800172]]
		sb_flags: 0x0
		sb_incompact_flags: 0x0
		dev_addr:	0xdb69a0
		device:		(null)
		devid:		1
		generation:	0
		total_bytes:	524288000
		bytes_used:	127926272
		type:		0
		io_align:	4096
		io_width:	4096
		sector_size:	4096
	[[UUID: 00000000-0000-0000-0000-000000000000]]
		sb_flags: 0x0
		sb_incompact_flags: 0x0
		dev_addr:	0xdb3060
		device:		(null)
		devid:		1
		generation:	0
		total_bytes:	0
		bytes_used:	0
		type:		0
		io_align:	0
		io_width:	0
		sector_size:	0
	[[UUID: 1db7564f-e53b-46ff-8a33-a8b2d00d86d1]]
		sb_flags: 0x1000000001
		sb_incompact_flags: 0x141
		dev_addr:	0xdb6e90
		device:		/tdev/disk4.raw
		devid:		2
		generation:	6
		total_bytes:	524288000
		bytes_used:	127926272
		type:		0
		io_align:	4096
		io_width:	4096
		sector_size:	4096

Fix this issue by adding the UUID to the missing device created in
fill_missing_device().

After:

$ btrfstune -m /tdev/disk4.raw
warning, device 1 is missing
[fsid: 95bbc163-671a-4a0a-bd34-03a65e4b338c]
        size:                   120
        metadata_uuid:          95bbc163-671a-4a0a-bd34-03a65e4b338c
        fs_devs_addr:           0x161f380
        total_rw_bytes:         1048576000
        [[UUID: 703a4cac-bca0-47e4-98f6-55e530800172]]
                sb_flags: 0x0
                sb_incompact_flags: 0x0
                dev_addr:       0x161c060
                device:         (null)
                devid:          1
                generation:     0
                total_bytes:    524288000
                bytes_used:     127926272
                type:           0
                io_align:       4096
                io_width:       4096
                sector_size:    4096
        [[UUID: 1db7564f-e53b-46ff-8a33-a8b2d00d86d1]]
                sb_flags: 0x1000000001
                sb_incompact_flags: 0x141
                dev_addr:       0x161fe90
                device:         /tdev/disk4.raw
                devid:          2
                generation:     6
                total_bytes:    524288000
                bytes_used:     127926272
                type:           0
                io_align:       4096
                io_width:       4096
                sector_size:    4096

Signed-off-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>
2023-08-23 19:36:31 +02:00
Anand Jain
57cd29c895 btrfs-progs: tests: return metadata_uuid or fsid as per METADATA_UUID flag
Previous commit "btrfs-progs: dump-super: print actual metadata_uuid
value" changed the value of the super_block::metadata_uuid to be printed
as it is, without tweaking it depending on the METADATA_UUID flag.

Apply similar tweak in the common helper functions used to read the
metadata_uuid so that test-cases still be successful.

Signed-off-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>
2023-08-23 19:36:31 +02:00
Anand Jain
1d988f3638 btrfs-progs: dump-super: print actual metadata_uuid value
The function btrfs_print_superblock() prints all members of the
superblock as they are, except for the superblock::metadata_uuid.
If the METADATA_UUID flag is unset, it prints the fsid instead of
zero as in the superblock::metadata_uuid.

Perhaps this was done because to match with the kernel
btrfs_fs_devices::metadata_uuid value as it also sets fsid if
METADATA_UUID flag is unset.

However, the actual superblock::metadata_uuid is always zero if the
METADATA_UUID flag is unset. Just to mention the kernel does not alter
the superblock::metadata_uuid value any time.

The dump-super printing fsid instead of zero, is confusing because we
generally expect dump_super to print the superblock value in the raw
format without modification.

Fix this by printing the actual metadata_uuid value instead of fsid.

Signed-off-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>
2023-08-23 19:36:31 +02:00
Qu Wenruo
cb19235991 btrfs-progs: tests: misc/046: fix false alerts on write detection
[BUG]
Test case misc/046-seed-multi-mount would always fail with the following
error:

    [TEST]   misc-tests.sh
    [TEST/misc]   046-seed-multi-mount
unexpected success: writable file despite read-only mount
test failed for case 046-seed-multi-mount

[CAUSE]
Although mounting seed device is indeed read-only, sprouting it with a
new device would always make it read-write by itself.

The behavior is already there for a long time, thus expecting a new
behavior (not changing the read-only flag) is a little weird.

[FIX]
Instead of doing the write check after the sprout, do it before the
sprout.

This looks more correct, and would not rely on the kernel behavior
change (if we determine to go that path).

Signed-off-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
2023-08-23 19:36:31 +02:00
Qu Wenruo
e6b412b359 btrfs-progs: tests: misc/058: reduce the space requirement and speed up the test
[BUG]
When I was testing misc/058, the fs still has around 7GiB free space,
but during that test case, btrfs kernel module reports write failures
and even git commands failed inside that fs.

And obviously the test case failed.

[CAUSE]
It turns out that, the test case itself would require 6GiB (4 data
disks) + 1.5GiB x 2 (the two replace target), thus it requires 9 GiB
free space.

And obviously my partition is not that large and failed.

[FIX]
In fact, we really don't need that much space at all.

The test verifies that two consecutive replace operations can be started
and enqueued, the sleep of 1 second is not strictly necessary as the
first command should start the replace right away.

Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
2023-08-23 19:36:31 +02:00
Qu Wenruo
885fe371c8 btrfs-progs: tests: misc/030: do not require v1 cache for the test case
[PROBLEM]
Since we have migrated to default v2 cache, the test case
misc/030-missing-device-image is no longer executed:

    [TEST/misc]   030-missing-device-image
    [NOTRUN] unable to create v1 space cache

[CAUSE]
The test case itself is trying its best to cover all paths, including
the data extent read path.

Thus the test case is requiring v1 cache, as that's the only way to
cover the data read path.

[FIX]
Just remove the v1 space cache requirement, it's still better to run the
test even it only exercises the metadata read path.

The good news is, after commit 3ff9d35257 ("btrfs-progs: use
read_data_from_disk() to replace read_extent_from_disk() and replace
read_extent_data()"), all data/metadata read paths are unified.
They only difference is the verification part.

Thus even if we didn't fully exercise the data read path, we didn't lose
much coverage anyway.

Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
2023-08-23 19:36:31 +02:00
Qu Wenruo
005d2cc047 btrfs-progs: tests: mkfs/005: use udevadm settle to avoid false alerts
[BUG]
During my test runs of mkfs-tests, 005-long-device-name-for-ssd failed
with the following error messages:

  ====== RUN CHECK dmsetup remove btrfs-test-with-very-long-name-AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAQPGc
  device-mapper: remove ioctl on btrfs-test-with-very-long-name-AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAQPGc  failed: Device or resource busy
  Command failed.
  failed: dmsetup remove btrfs-test-with-very-long-name-AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAQPGc
  test failed for case 005-long-device-name-for-ssd

[CAUSE]
There seems to be a race between "btrfs inspect dump-super" and the
dmsetup removal.

[FIX]
Add a "udevadm settle" before removing the dm devices.

Also since we're here, use the same "udevadm settle" instead of the
manual sleep to wait for the new dm device to show up.

Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
2023-08-23 19:36:31 +02:00
David Sterba
835526b120 btrfs-progs: tests: add script to check global prerequisities
Check for each test directory if the utilities requested by
check_global_prereq can be found on the system.

Signed-off-by: David Sterba <dsterba@suse.com>
2023-08-11 19:59:29 +02:00
Anand Jain
e3ed68fce6 btrfs-progs: update .gitignore
We still have some files after cleanup that git identifies. Add them to
the .gitignore.

Signed-off-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>
2023-08-11 19:59:29 +02:00
Anand Jain
485fceec8d btrfs-progs: register device after successfully changing the fsid
Testing with the fstests config option POST_MKFS_CMD="btrfstune -m"
reported failure, as shown below:

  ./check btrfs/003

  [111.635618] BTRFS: device fsid a6599a65-8b6d-4156-bb55-0a3a2f0eae9d devid 1 transid 6 /dev/sdb2 scanned by systemd-udevd (1117)
  [111.642199] BTRFS: device fsid a6599a65-8b6d-4156-bb55-0a3a2f0eae9d devid 2 transid 6 /dev/sdb3 scanned by systemd-udevd (1114)
  [111.660882] BTRFS: device fsid a6599a65-8b6d-4156-bb55-0a3a2f0eae9d devid 3 transid 6 /dev/sdb5 scanned by systemd-udevd (1116)
  [111.672623] BTRFS: device fsid a6599a65-8b6d-4156-bb55-0a3a2f0eae9d devid 4 transid 6 /dev/sdb6 scanned by systemd-udevd (993)
  [111.701301] BTRFS: device fsid a6599a65-8b6d-4156-bb55-0a3a2f0eae9d devid 6 transid 6 /dev/sdb8 scanned by systemd-udevd (1080)
  [111.706513] BTRFS: device fsid a6599a65-8b6d-4156-bb55-0a3a2f0eae9d devid 5 transid 6 /dev/sdb7 scanned by systemd-udevd (1117)
  [111.716532] BTRFS: device fsid a6599a65-8b6d-4156-bb55-0a3a2f0eae9d devid 7 transid 6 /dev/sdb9 scanned by systemd-udevd (1114)
  [111.721253] BTRFS: device fsid a6599a65-8b6d-4156-bb55-0a3a2f0eae9d devid 8 transid 6 /dev/sdb10 scanned by mkfs.btrfs (1504)
  [112.405186] BTRFS: device fsid 1b3bacbf-14db-49c9-a3ef-547998aacc4e devid 4 transid 8 /dev/sdb6 scanned by systemd-udevd (1117)
  [112.422104] BTRFS: device fsid 1b3bacbf-14db-49c9-a3ef-547998aacc4e devid 6 transid 8 /dev/sdb8 scanned by systemd-udevd (1523)
  [112.448355] BTRFS: device fsid 1b3bacbf-14db-49c9-a3ef-547998aacc4e devid 1 transid 8 /dev/sdb2 scanned by systemd-udevd (1115)
  [112.456126] BTRFS error: device /dev/sdb3 belongs to fsid 1b3bacbf-14db-49c9-a3ef-547998aacc4e, and the fs is already mounted
  [112.461299] BTRFS error: device /dev/sdb7 belongs to fsid 1b3bacbf-14db-49c9-a3ef-547998aacc4e, and the fs is already mounted
  [112.465690] BTRFS info (device sdb2): using crc32c (crc32c-generic) checksum algorithm
  [112.468758] BTRFS info (device sdb2): using free space tree
  [112.471318] BTRFS error: device /dev/sdb9 belongs to fsid 1b3bacbf-14db-49c9-a3ef-547998aacc4e, and the fs is already mounted
  [112.475962] BTRFS error: device /dev/sdb10 belongs to fsid 1b3bacbf-14db-49c9-a3ef-547998aacc4e, and the fs is already mounted
  [112.481934] BTRFS error: device /dev/sdb5 belongs to fsid 1b3bacbf-14db-49c9-a3ef-547998aacc4e, and the fs is already mounted
  [112.494614] BTRFS error (device sdb2): devid 2 uuid 99a57db7-2ef6-4240-a700-07ee7e64fb36 is missing
  [112.497834] BTRFS error (device sdb2): failed to read chunk tree: -2
  [112.507705] BTRFS error (device sdb2): open_ctree failed

The original fsid created by mkfs was a6599a65-8b6d-4156-bb55-0a3a2f0eae9d,
and the fsid created by the btrfstune -m option was
1b3bacbf-14db-49c9-a3ef-547998aacc4e.

During mount (after btrfstune -m), only 3 out of 8 devices were scanned
by systemd, while the rest were still being discovered. Consequently, the
mount command raced to find the missing devices. Since the mount command
in the kernel sets the flag fsdevices::opened, any further new alloc_device()
were blocked, resulting in the error "the fs is already mounted."

It is a good idea to register all devices after changing the fsid.
The previous registrations are already stale after changing the fsid.

Signed-off-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>
2023-08-11 19:59:17 +02:00
David Sterba
b28ce934b0 btrfs-progs: ci: update maintenance scripts
- use proper json array filtering
- use long parameter names
- add comments
- add cleaner for coverage runs
- keep last run for branches with badges at README

Signed-off-by: David Sterba <dsterba@suse.com>
2023-07-27 15:42:40 +02:00
David Sterba
54c11ec03f btrfs-progs: tests: check if enqueued replace over replace waits
Signed-off-by: David Sterba <dsterba@suse.com>
2023-07-27 14:45:29 +02:00
David Sterba
76c0446bec btrfs-progs: mkfs: convert int to bool in a few helpers
Signed-off-by: David Sterba <dsterba@suse.com>
2023-07-27 14:45:29 +02:00
David Sterba
b06fe85011 btrfs-progs: check: convert int to bool in a few helpers
Signed-off-by: David Sterba <dsterba@suse.com>
2023-07-27 14:45:29 +02:00
David Sterba
6a3c7aac45 btrfs-progs: list-chunks: rename variables, adjust LNumber starting point
Rename variables tracking ordering, print the logical number starting
from 1 for consistency.

Sample output, sorted by usage:

Number      Type/profile    PStart    Length     PEnd LNumber   LStart Usage%
------ ----------------- --------- --------- -------- ------- -------- ------
     1     System/single   1.00MiB   4.00MiB  5.00MiB       1  1.00MiB   1.56
     2   Metadata/single   5.00MiB   8.00MiB 13.00MiB       2  5.00MiB   2.34
     3       Data/single  12.27GiB   1.00GiB 13.27GiB      17 77.02GiB   2.62
     4       Data/single  11.27GiB   1.00GiB 12.27GiB      15 75.77GiB   3.72
     5       Data/single  13.27GiB   1.00GiB 14.27GiB      18 78.02GiB   3.76
     6   Metadata/single   2.27GiB 256.00MiB  2.52GiB       6 68.02GiB   3.98
     7       Data/single  10.27GiB   1.00GiB 11.27GiB      14 74.77GiB   4.01
     8       Data/single   9.27GiB   1.00GiB 10.27GiB      13 73.77GiB   4.14
     9   Metadata/single   5.77GiB 256.00MiB  6.02GiB      12 73.52GiB   7.89
    10   Metadata/single   6.02GiB 256.00MiB  6.27GiB      16 76.77GiB   9.23
    11       Data/single  16.27GiB   1.00GiB 17.27GiB      19 81.02GiB  18.25
    12       Data/single   8.27GiB   1.00GiB  9.27GiB      11 72.52GiB  39.90
    13       Data/single   3.52GiB   1.00GiB  4.52GiB       8 69.27GiB  44.52
    14       Data/single   6.27GiB   1.00GiB  7.27GiB       3 65.02GiB  57.73
    15       Data/single   4.52GiB   1.00GiB  5.52GiB       9 70.27GiB  59.63
    16       Data/single 277.00MiB   1.00GiB  1.27GiB       4 66.02GiB  60.43
    17       Data/single   2.52GiB   1.00GiB  3.52GiB       7 68.27GiB  61.37
    18       Data/single   1.27GiB   1.00GiB  2.27GiB       5 67.02GiB  62.35
    19       Data/single   7.27GiB   1.00GiB  8.27GiB      10 71.52GiB  64.99

Signed-off-by: David Sterba <dsterba@suse.com>
2023-07-27 14:45:29 +02:00
David Sterba
cac019e583 btrfs-progs: list-chunks: update column names
Make the column names more descriptive, PNumber is from times when there
was only physical sort. Make the type/profile more explicit, later it
can be filtered by that. The 'Age' reflects the current allocation
strategy to always pick a higher number but this could become confusing,
it's really the number when sorted by logical offset.

Signed-off-by: David Sterba <dsterba@suse.com>
2023-07-27 14:45:29 +02:00
David Sterba
8d2843afca btrfs-progs: list-chunks: reflow help text of --sort
Now we can use newlines in option descriptions to make nicer lists for
options:

    --sort MODE               sort by a column ascending (default: pstart),
                              MODE can be one of:
                              pstart - physical offset, grouped by device
                              lstart - logical offset
                              usage - by chunk usage (implies --usage)
                              length_p - by chunk length, secondary by physical offset
                              length_l - by chunk length, secondary by logical offset

Signed-off-by: David Sterba <dsterba@suse.com>
2023-07-27 14:45:29 +02:00
David Sterba
c135550c28 btrfs-progs: help: indent option description newlines
A newline character in option description text will break line and then
indent the text properly, can be used for lists or paragraphs.

Signed-off-by: David Sterba <dsterba@suse.com>
2023-07-27 14:45:29 +02:00
David Sterba
3d17609d66 btrfs-progs: list-chunks: add sorting by length
Signed-off-by: David Sterba <dsterba@suse.com>
2023-07-27 14:45:29 +02:00
David Sterba
73c5ad0d70 btrfs-progs: list-chunks: add sorting by usage
Add another sorting key 'usage' to sort chunks by usage, ascending. Also
implies --usage parameter so it's viewed. This ignores devid, so all
chunks are mixed.

Signed-off-by: David Sterba <dsterba@suse.com>
2023-07-27 14:45:29 +02:00
David Sterba
316f221908 btrfs-progs: btrfstune: add injection points to btrfsune --csum
Add points after each commit when changing the checksum type.

Signed-off-by: David Sterba <dsterba@suse.com>
2023-07-27 14:45:29 +02:00
David Sterba
6f05548661 btrfs-progs: add error injection helper script
Add a convenience script for adding new injection cookies and filter for
actual testing.

- ./inject-error new - return new unique cookie
- ./inject-error file tune/change-csum.c - show all cookies in the given
  file (takes regexp)

Example usage:

  for i in $(./inject-error file tune/change-csum.c | awk '{print $1}') ; do
	  echo "Inject $i"
	  export INJECT="$i"
	  rm img
	  cp --reflink img.filled img
	  ./btrfstune --csum blake2 img
	  btrfs check img
  done

Where 'img' is a filesystem with sample files and directories.

Signed-off-by: David Sterba <dsterba@suse.com>
2023-07-27 14:45:29 +02:00
David Sterba
8922ab5d6a btrfs-progs: add simple error injection framework
To be able to test errors at specific locations, add a simple way to
check for a condition in code and controlled from user space environment
variable INJECT. For now a single value is accepted.

Use like:

	if (inject_error(0x1234)) {
		do_something();
		return -ERROR;
	}

This is enabled in debugging build by default (make D=1) and can be
enabled on demand too (make EXTRA_CFLAGS=-DINJECT).

Signed-off-by: David Sterba <dsterba@suse.com>
2023-07-27 14:45:29 +02:00
David Sterba
4790665142 btrfs-progs: docs: update doc style and conventions
Issue: #638
Signed-off-by: David Sterba <dsterba@suse.com>
2023-07-27 14:45:29 +02:00
David Sterba
bb0ca35245
Btrfs progs v6.3.3
Signed-off-by: David Sterba <dsterba@suse.com>
2023-07-27 14:33:30 +02:00
David Sterba
01418f28f1 btrfs-progs: update CHANGES for 6.3.3
Signed-off-by: David Sterba <dsterba@suse.com>
2023-07-27 14:32:00 +02:00
David Sterba
c77f2f9f0d btrfs-progs: replace: properly enqueue if there's another replace running
Enqueuing allows to let some operations to wait until the current one
finishes. This usually means that it's waiting for another one, but in
case of replace there's a check that does not allow the enqueuing to
take place, as reported.

Move it before that check.

Issue: #645
Signed-off-by: David Sterba <dsterba@suse.com>
2023-07-26 15:00:48 +02:00
David Sterba
fedd4cc596 btrfs-progs: ci: upload coverage workflow results to codecov.io
Needed to work:

- install github app Codecov, accept permissions
- copy token from codecov.io to repository secrets
- allow actions permissions to run either verified marketplace creators
  or list codecov/codecov-action@*
- set up repository as active on codecov.io, watch results eg.
  https://app.codecov.io/gh/kdave/btrfs-progs/tree/coverage-test/

Signed-off-by: David Sterba <dsterba@suse.com>
2023-07-26 15:00:48 +02:00
David Sterba
eceb335ab2 btrfs-progs: ci: link CI badges to the workflow pages
The plain badge links to the image, now it's pointing to the individual
workflows.

Signed-off-by: David Sterba <dsterba@suse.com>
2023-07-26 15:00:48 +02:00
David Sterba
1b88e5166a btrfs-progs: ci: update CI badges
Add badges for the CI workflows.

Signed-off-by: David Sterba <dsterba@suse.com>
2023-07-26 15:00:48 +02:00
David Sterba
57d9311b4d btrfs-progs: ci: add workflow for code coverage
Enable gcov build and run all tests, collect lcov results as artifacts.

Signed-off-by: David Sterba <dsterba@suse.com>
2023-07-26 15:00:48 +02:00
David Sterba
5636dce4f6 btrfs-progs: ci: enable fuzz tests
Signed-off-by: David Sterba <dsterba@suse.com>
2023-07-26 15:00:48 +02:00
David Sterba
f2b3170c3b btrfs-progs: build: add support for gcov
With 'make D=gcov' the files are built with gcov support. After running
the workload, the results can be viewed by 'gcov file.c' or by
lcov+genhtml.

Signed-off-by: David Sterba <dsterba@suse.com>
2023-07-26 15:00:48 +02:00
David Sterba
b3b041302e btrfs-progs: add btrfs-find-root to btrfs.box
There's a report that btrfs-find-root does not work as built-in tool in
btrfs.box, while it's advertised in the help:

  $ ./btrfs.box help --box
  Standalone tools built-in in the busybox style:
  - mkfs.btrfs
  - btrfs-image
  - btrfs-convert
  - btrfstune
  - btrfs-find-root

Add the support as it might be useful tool sometimes. In the future the
command should be moved to e.g. inspect-internal or rescue.

Issue: #648
Signed-off-by: David Sterba <dsterba@suse.com>
2023-07-26 15:00:48 +02:00
David Sterba
7446f2ce71 btrfs-progs: ci: build check all crypto backends
On relese tests also check all the backends, use Tumbleweed as it's
known to work there and provide all supported library versions.

Signed-off-by: David Sterba <dsterba@suse.com>
2023-07-26 15:00:48 +02:00
Anand Jain
77f366c9da btrfs-progs: add noscan parameter to check_where_mounted
The function check_where_mounted() scans the system for all other btrfs
devices, which is necessary for its operation.  However, in certain
cases, devices remaining in the scanned state is undesirable.  Introduce
the 'noscan' argument to make devices unscanned before return.

Signed-off-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>
2023-07-26 15:00:48 +02:00
Anand Jain
e408cfb49b btrfs-progs: factor out btrfs_scan_argv_devices
To prepare for handling command line given devices factor out
btrfs_scan_argv_devices().

Signed-off-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>
2023-07-26 15:00:48 +02:00
Anand Jain
60771e72a4 btrfs-progs: drop argument devid from device_list_add
Drop the devid argument, it can be fetched from the disk_super argument.

Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>
2023-07-26 15:00:48 +02:00
Anand Jain
dc9e80192b btrfs-progs: drop open_ctree_flags variable in cmd_inspect_dump_tree
Local variable open_ctree_flags carries the flags whose final update is
for the locally declared struct variable oca_flags. Just use oca.flags
directly.

Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>
2023-07-26 15:00:48 +02:00
Anand Jain
d46a0ef6a0 btrfs-progs: rename struct open_ctree_flags to open_ctree_args
The struct open_ctree_flags currently holds arguments for
open_ctree_fs_info(), it can be confusing when mixed with a local variable
named open_ctree_flags as below in the function cmd_inspect_dump_tree().

  cmd_inspect_dump_tree()
  ::
  struct open_ctree_flags ocf = { 0 };
  ::
  unsigned open_ctree_flags;

So rename struct open_ctree_flags to struct open_ctree_args.

Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>
2023-07-26 15:00:47 +02:00
Anand Jain
626d53fc75 btrfs-progs: switch is_btrfs to bool in check_mounted_where
The variable 'is_btrfs' is declared as an integer but should be a boolean
instead.

Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>
2023-07-26 15:00:47 +02:00
David Sterba
177a2eeadb btrfs-progs: tests: don't show grep output when checking stream version
The test misc/058 does not properly filter out the output due to -s that
only ignores non-existent files and was there due to previous changes.
We need to use -q.

Signed-off-by: David Sterba <dsterba@suse.com>
2023-07-26 15:00:47 +02:00
Anand Jain
82a9870d48 btrfs-progs: dump-super: fix read beyond device size
On aarch64 systems with glibc 2.28, several btrfs-progs test cases are
failing because the command 'btrfs inspect dump-super -a <dev>' reports
an error when it attempts to read beyond the disk/file-image size.

  $ btrfs inspect dump-super -a /dev/vdb12
  <snap>
  ERROR: Failed to read the superblock on /dev/vdb12 at 274877906944

And btrfs/184 also fails, as it uses -s 2 option to dump the last super
block.

	$ ./check btrfs/184
	FSTYP         -- btrfs
	PLATFORM      -- Linux/aarch64 a4k 6.4.0-rc7+ #7 SMP PREEMPT Sat Jun 24 02:47:24 EDT 2023
	MKFS_OPTIONS  -- /dev/vdb2
	MOUNT_OPTIONS -- /dev/vdb2 /mnt/scratch

	btrfs/184 1s ... [failed, exit status 1]- output mismatch (see /Volumes/ws/xfstests-dev/results//btrfs/184.out.bad)
	    --- tests/btrfs/184.out    2020-03-03 00:26:40.172081468 -0500
	    +++ /Volumes/ws/xfstests-dev/results//btrfs/184.out.bad    2023-06-24 05:54:40.868210737 -0400
	    @@ -1,2 +1,3 @@
	     QA output created by 184
	    -Silence is golden
	    +Deleted dev superblocks not scratched
	    +(see /Volumes/ws/xfstests-dev/results//btrfs/184.full for details)
	    ...
	    (Run 'diff -u /Volumes/ws/xfstests-dev/tests/btrfs/184.out /Volumes/ws/xfstests-dev/results//btrfs/184.out.bad'  to see the entire diff)
	Ran: btrfs/184
	Failures: btrfs/184
	Failed 1 of 1 tests

This is because `pread()` behaves differently on aarch64 and sets
`errno = 2` instead of the usual `errno = 0`.

To fix check if the sb offset is beyond the device size or regular file
size and skip the corresponding sbread().

Also, move putchar('\n') after a successful call to load_and_dump_sb() to
the load_and_dump_sb() itself.

Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>
2023-07-26 15:00:47 +02:00
Anand Jain
8da82cde9c btrfs-progs: dump-super: drop the label out and variable ret
In cmd_inspect_dump_super(), at the label 'out', nothing much happens
other than returning ret.

At the goto statement to the label, in the for loop, we perform close(fd).
However, moving the close(fd) to 'out' as well is not a good idea because
close(fd) doesn't make sense outside the for loop.

Instead, simply return 1 instead of ret=1 and then returning it. Drop both
the 'out' label and ret.

Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>
2023-07-26 15:00:41 +02:00
Anand Jain
4ab083175a btrfs-progs: dump-super: improve error message on failed read
Add more error information to help debugging:

  $ ./btrfs inspect-internal dump-super -Ffa /dev/vdb10

  Before:
  ERROR: failed to read the superblock on /dev/vdb10 at 274877906944

  After:
  ERROR: failed to read the superblock on /dev/vdb10 at 274877906944 read 0/4096 bytes

Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>
2023-07-26 14:59:10 +02:00
Anand Jain
b51117d68e btrfs-progs: tests: check for btrfs ACL support
Fix failures caused by the lack of ACL support in btrfs. For example:

  $ make test
    ::
    [TEST/misc]   057-btrfstune-free-space-tree
    failed: setfacl -m u:root:x /Volumes/ws/btrfs-progs/tests/mnt/acls/acls.1
    test failed for case 057-btrfstune-free-space-tree
    make: *** [Makefile:493: test-misc] Error 1

Similar failures occurred in the test cases convert/001-ext2-basic,
convert/003-ext4-basic, convert/005-delete-all-rollback, and
convert/006-large-hole-extent.

Resolve it by adding a check for ACL support using the
check_kernel_support_acl() helper function. It gracefully handles the case
when ACL support is not compiled by calling _not_run().

Signed-off-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>
2023-07-26 14:59:10 +02:00
Anand Jain
1fb1ae8ebb btrfs-progs: tests: add helper to check if ACLs are supported
Some test cases are failing when ACL is not compiled in the system.
Instead, they should be marked as 'not_run'.

Signed-off-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>
2023-07-26 14:59:10 +02:00
Anand Jain
d52686fc2a btrfs-progs: tests: move delete_subvol_children under HAVE_BTRFSUTIL_H fsstress.c
Bring the  'delete_subvol_children' function under the HAVE_BTRFSUTIL_H
define and fix the following warnings. This function is called only when
'HAVE_BTRFSUTILS_H' is defined.

tests/fsstress.c:1183:1: warning: ‘delete_subvol_children’ defined but not used [-Wunused-function]
 1183 | delete_subvol_children(int parid

Signed-off-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>
2023-07-26 14:59:10 +02:00
Anand Jain
b31f1e6988 btrfs-progs: tests: move do_fallocate under HAVE_LINUX_FALLOC_H in fsstress.c
Move the entire 'do_fallocate' function under the 'HAVE_LINUX_FALLOC_H'
define and fix the following warnings. This function is called only when
'HAVE_LINUX_FALLOC_H' is defined.

tests/fsstress.c:3814:1: warning: ‘do_fallocate’ defined but not used [-Wunused-function]
 3814 | do_fallocate(opnum_t opno, long r, int mode)

Signed-off-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>
2023-07-26 14:59:10 +02:00