| Commit message (Collapse) | Author | Age |
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It does not resolve the inode number but path where fd has been opened.
Signed-off-by: David Sterba <dsterba@suse.com>
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It seems like bad idea to use a library name (lblkid) within generic
function name. The currently used scanning library is implementation
detail and this detail should be hidden for rest of the code.
Signed-off-by: Karel Zak <kzak@redhat.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
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Use the uname syscall and parse the string.
Signed-off-by: David Sterba <dsterba@suse.com>
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Signed-off-by: David Sterba <dsterba@suse.com>
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Signed-off-by: David Sterba <dsterba@suse.com>
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No need for dynamic allocation, the buffers are small, remove the
now-useless error conditions.
Signed-off-by: David Sterba <dsterba@suse.com>
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Add options to show file and line or stack trace for error/warning
messages that use the common helpers. Possible to let any error stop
execution for ease of analysis and debugging.
Signed-off-by: David Sterba <dsterba@suse.com>
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The message about discard is printed unconditionally and does not
conform to the --quite option eg. in mkfs. Consolidate the operation
flags into one argument and add support for verbosity.
Signed-off-by: David Sterba <dsterba@suse.com>
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Signed-off-by: David Sterba <dsterba@suse.com>
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Introduce new function make_convert_btrfs() for convert.
This new function will have the following features:
1) Allocate temporary sb/metadata/system chunk, avoiding old used data
2) More structured functions
No more over 1000 lines function, better function split and code
reuse
This will finally replace current make_btrfs(), but now only used for
convert.
Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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We know nodesize should not overflow with the shift, but le'ts make the
code correct if the resulting type can store the full value.
Resolves-coverity-id: 1358120
Signed-off-by: David Sterba <dsterba@suse.com>
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David has reported some quite chaos usage of pseudo random numbers.
Like using static srand seed, or even calling rand() without setting
seed correctly.
The new pseudo random API will initialize the random seed on its first
calling and use uniformly distributed pseudo random number generator as
backend.
Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
[ renamed variables and functions, added prefixes ]
Signed-off-by: David Sterba <dsterba@suse.com>
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The other get_device_info() is in the same file, 4 lines above.
Signed-off-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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Nodesize is used in kernel, the values are always equal. We have to keep
leafsize in headers, similarly the tree setting functions still take and
set leafsize, but it's effectively a no-op.
Signed-off-by: David Sterba <dsterba@suse.com>
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Signed-off-by: David Sterba <dsterba@suse.com>
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Use const char and remove stray prototypes.
Signed-off-by: David Sterba <dsterba@suse.com>
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Signed-off-by: David Sterba <dsterba@suse.com>
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Signed-off-by: Anand Jain <anand.jain@oracle.com>
[ renamed from subvol_minus_mnt to subvol_strip_mountpoint ]
Signed-off-by: David Sterba <dsterba@suse.com>
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get_subvol_info() is useful as we are adding more features around
subvolume. This function was inline with the function
cmd_subvol_show().
Signed-off-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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Signed-off-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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Signed-off-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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kerncompat.h header file is part of libbtrfs API. min/max macros cause
conflict while building projects dependant on libbtrfs. Moving those
macros to btrfs-progs internal header file fixes the conflict.
Signed-off-by: Ondrej Kozina <okozina@redhat.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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All commands should support the "--" option separator. This is
transparently handled by getopt, but we don't use that everywhere.
Introduce a helper for commands that take no options (just the path).
The object file dependencies need to be adjusted a bit.
Signed-off-by: David Sterba <dsterba@suse.com>
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Reported by gcc -Wsuggest-attribute=format .
Signed-off-by: David Sterba <dsterba@suse.com>
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Introduce 3 new members for btrfs_convert_context:
1) struct cache_tree used
Records accurate byte ranges which are used by old filesystem.
This will be used to create old filesystem image.
2) struct cache_tree data_chunks
Records batched ranges which must be covered by data chunks.
The bytenr range is optimized to meet all the chunk requirement.
3) u64 total_bytenr
Records how large the filesystem is in bytenr.
Yes, we can calculate it easy, but that's for old blocks based
filesystem.
This will make it more friendly for extent based filesystem.
And later cctx->block_counts and may be removed
And 2 for mkfs_config:
1) char *chunk_uuid.
Used as temporary chunk_uuid (unparsed) string for later
make_convert_btrfs()
2) u64 super_bytenr
Records the new temporary super bytenr after make_btrfs().
Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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Current code don't support DUP profile on single device, except it
is in mixed mode, because of following reasons:
1: Some SSD do deduplication internally, so the duplication on
the filesystem side has no effect.
2: On a physical device, if the entire disk broken, --data DUP does not
help.
3: Half performance compared to single profile.
4: We have a workaround: create multi-partition on a single device,
and btffs will treat them as multi device.
Instead of refusing --data DUP, we give the user a choice and print
a wrning.
Test:
1: Tested by xfstests
Run with modified xfstests, I add test items of -d dup in single
device into btrfs/* and common/rc, run tests of btrfs/*,
with all mount option, no regression diffed with v4.3.
2: Tested by btrfs-progs
Checked following commands in "-m dup -d dup" fs with memleck
checking, all passed:
mkfs.btrfs -f --data dup --metadata dup /dev/sda6
btrfs filesystem show /dev/sda6
btrfs filesystem label /dev/sda6 btrfs_label_test
btrfs filesystem label /dev/sda6
btrfs device scan --all-devices
btrfs device scan /dev/sda6
btrfs device scan /dev/sda6
btrfs device ready /dev/sda6
btrfs check /dev/sda6
btrfs check -s 1 /dev/sda6
btrfs check --repair /dev/sda6
btrfs check --init-csum-tree /dev/sda6
btrfs check --init-extent-tree /dev/sda6
btrfs check --check-data-csum /dev/sda6
btrfs check --qgroup-report /dev/sda6
btrfs rescue super-recover -y /dev/sda6
btrfs rescue zero-log /dev/sda6
btrfs restore -l /dev/sda6
btrfs restore /dev/sda6 /
btrfs restore -s /dev/sda6 /
btrfs restore -x /dev/sda6 /
btrfs restore -m /dev/sda6 /
btrfs restore -S /dev/sda6 /
btrfs restore -v /dev/sda6 /
btrfs restore -i /dev/sda6 /
btrfs restore -o /dev/sda6 /
btrfs restore -u0 /dev/sda6 /
btrfs restore -u1 /dev/sda6 /
btrfs restore -D /dev/sda6 /
btrfs property list /dev/sda6
btrfs property get /dev/sda6 label
btrfs property set /dev/sda6 label test
btrfs property set /dev/sda6 label btrfs_label_test
btrfs help
btrfs help --full
btrfs version
btrfsck /dev/sda6
btrfs-find-root /dev/sda6
btrfs-find-root -a /dev/sda6
btrfs-map-logical -l1 /dev/sda6
btrfs-map-logical -l1 -c1 /dev/sda6
btrfs-map-logical -l1 -o /tmp/btrfs-map-logic-out /dev/sda6
btrfs-map-logical -l1 -b1 /dev/sda6
btrfs-select-super -s 0 /dev/sda6
btrfs-select-super -s 1 /dev/sda6
btrfstune -S 1 /dev/sda6
btrfstune -f -S 0 /dev/sda6
btrfstune -r /dev/sda6
btrfstune -x /dev/sda6
btrfstune -n /dev/sda6
btrfstune -f -U 00000000-0000-0000-0000-000000000000 /dev/sda6
btrfstune -f -u /dev/sda6
btrfs-calc-size /dev/sda6
btrfs-calc-size -v /dev/sda6
btrfs-calc-size -b /dev/sda6
btrfs-debug-tree /dev/sda6
btrfs-debug-tree -e /dev/sda6
btrfs-debug-tree -d /dev/sda6
btrfs-debug-tree -r /dev/sda6
btrfs-debug-tree -R /dev/sda6
btrfs-debug-tree -u /dev/sda6
btrfs-debug-tree -b 0 /dev/sda6
btrfs-debug-tree -t 0 /dev/sda6
btrfs-debug-tree -t 2 /dev/sda6
btrfs-show-super /dev/sda6
btrfs-show-super -i 0 /dev/sda6
btrfs-show-super -i 1 /dev/sda6
btrfs-show-super -i 2 /dev/sda6
btrfs-show-super -a /dev/sda6
btrfs-show-super -f /dev/sda6
btrfs-show-super -F /dev/sda6
btrfs subvolume list /mnt/btrfs-progs-tests
btrfs subvolume create /mnt/btrfs-progs-tests/mysubvol
btrfs subvolume list /mnt/btrfs-progs-tests
btrfs subvolume get-default /mnt/btrfs-progs-tests
btrfs subvolume set-default 258 /mnt/btrfs-progs-tests
btrfs subvolume get-default /mnt/btrfs-progs-tests
btrfs subvolume set-default /mnt/btrfs-progs-tests
btrfs subvolume snapshot /mnt/btrfs-progs-tests/mysubvol /mnt/btrfs-progs-tests/mysubvol_snap
btrfs subvolume list /mnt/btrfs-progs-tests
btrfs subvolume find-new /mnt/btrfs-progs-tests 0
btrfs subvolume find-new /mnt/btrfs-progs-tests 0
btrfs subvolume find-new /mnt/btrfs-progs-tests/mysubvol 0
btrfs subvolume find-new /mnt/btrfs-progs-tests/mysubvol 0
btrfs subvolume show /mnt/btrfs-progs-tests
btrfs subvolume show /mnt/btrfs-progs-tests/mysubvol
btrfs subvolume show /mnt/btrfs-progs-tests/mysubvol_snap
btrfs subvolume sync /mnt/btrfs-progs-tests
btrfs subvolume delete /mnt/btrfs-progs-tests/mysubvol_snap
btrfs subvolume delete /mnt/btrfs-progs-tests/mysubvol
btrfs subvolume sync /mnt/btrfs-progs-tests
btrfs filesystem df /mnt/btrfs-progs-tests
btrfs filesystem show /mnt/btrfs-progs-tests
btrfs filesystem sync /mnt/btrfs-progs-tests
btrfs filesystem label /mnt/btrfs-progs-tests btrfs_label_test
btrfs filesystem label /mnt/btrfs-progs-tests
btrfs filesystem usage /mnt/btrfs-progs-tests
btrfs filesystem defragment -s 1024 -l 2048 /mnt/btrfs-progs-tests/filesystem_test_dir/test_dir_0/test_file_0
btrfs filesystem defragment /mnt/btrfs-progs-tests/filesystem_test_dir/test_dir_0/test_file_1
btrfs filesystem defragment -f /mnt/btrfs-progs-tests/filesystem_test_dir/test_dir_0/test_file_2
btrfs filesystem defragment -czlib /mnt/btrfs-progs-tests/filesystem_test_dir/test_dir_0/test_file_3
btrfs filesystem defragment -clzo /mnt/btrfs-progs-tests/filesystem_test_dir/test_dir_0/test_file_4
btrfs filesystem defragment /mnt/btrfs-progs-tests/filesystem_test_dir
btrfs filesystem defragment -r /mnt/btrfs-progs-tests/filesystem_test_dir
btrfs filesystem defragment /mnt/btrfs-progs-tests
btrfs filesystem resize 1:-10M /mnt/btrfs-progs-tests
btrfs filesystem resize 1:max /mnt/btrfs-progs-tests
btrfs balance start /mnt/btrfs-progs-tests
btrfs balance start -v /mnt/btrfs-progs-tests
btrfs balance start -f /mnt/btrfs-progs-tests
btrfs balance status -v /mnt/btrfs-progs-tests
btrfs balance pause /mnt/btrfs-progs-tests
btrfs balance status /mnt/btrfs-progs-tests
btrfs balance resume /mnt/btrfs-progs-tests
btrfs balance status -v /mnt/btrfs-progs-tests
btrfs balance cancel /mnt/btrfs-progs-tests
btrfs balance start -dprofiles=single /mnt/btrfs-progs-tests
btrfs balance start -dconvert=single /mnt/btrfs-progs-tests
btrfs balance start -ddevid=1 /mnt/btrfs-progs-tests
btrfs balance start -f -mprofiles=single /mnt/btrfs-progs-tests
btrfs balance start -f -mconvert=single /mnt/btrfs-progs-tests
btrfs balance start -f -mdevid=1 /mnt/btrfs-progs-tests
btrfs balance start -f -sprofiles=single /mnt/btrfs-progs-tests
btrfs balance start -f -sconvert=single /mnt/btrfs-progs-tests
btrfs balance start -f -sdevid=1 /mnt/btrfs-progs-tests
btrfs device add -f /dev/sda10 /mnt/btrfs-progs-tests
btrfs device del /dev/sda10 /mnt/btrfs-progs-tests
btrfs device stats /dev/sda6
btrfs device stats -z /dev/sda6
btrfs device stats /mnt/btrfs-progs-tests
btrfs device stats -z /mnt/btrfs-progs-tests
btrfs device usage /mnt/btrfs-progs-tests
btrfs scrub status /mnt/btrfs-progs-tests
btrfs scrub start -B /mnt/btrfs-progs-tests
btrfs scrub start -B -d /mnt/btrfs-progs-tests
btrfs scrub start -B -r /mnt/btrfs-progs-tests
btrfs scrub status /mnt/btrfs-progs-tests
btrfs scrub start /mnt/btrfs-progs-tests
btrfs scrub status /mnt/btrfs-progs-tests
btrfs scrub status /mnt/btrfs-progs-tests
btrfs scrub status -d /mnt/btrfs-progs-tests
btrfs scrub status -R /mnt/btrfs-progs-tests
btrfs scrub status /mnt/btrfs-progs-tests
btrfs scrub start /dev/sda6
btrfs scrub status /dev/sda6
btrfs scrub status /dev/sda6
btrfs scrub status -d /dev/sda6
btrfs scrub status -R /dev/sda6
btrfs scrub status /dev/sda6
btrfs subvolume snapshot -r /mnt/btrfs-progs-tests /mnt/btrfs-progs-tests/snap1
btrfs send -f /tmp/btrfs_snapshot_test /mnt/btrfs-progs-tests/snap1
btrfs send -e -f /tmp/btrfs_snapshot_test /mnt/btrfs-progs-tests/snap1
btrfs send --no-data -f /tmp/btrfs_snapshot_test /mnt/btrfs-progs-tests/snap1
btrfs quota enable /mnt/btrfs-progs-tests
btrfs quota rescan /mnt/btrfs-progs-tests
btrfs quota rescan -s /mnt/btrfs-progs-tests
btrfs quota rescan -w /mnt/btrfs-progs-tests
btrfs quota disable /mnt/btrfs-progs-tests
btrfs quota enable /mnt/btrfs-progs-tests
btrfs qgroup create 1/5 /mnt/btrfs-progs-tests
btrfs qgroup create 2/5 /mnt/btrfs-progs-tests
btrfs qgroup assign 1/5 2/5 /mnt/btrfs-progs-tests
btrfs qgroup limit 1G 1/5 /mnt/btrfs-progs-tests
btrfs qgroup show /mnt/btrfs-progs-tests
btrfs qgroup show -p -c -r -e -F -f /mnt/btrfs-progs-tests
btrfs qgroup remove 1/5 2/5 /mnt/btrfs-progs-tests
btrfs qgroup destroy 2/5 /mnt/btrfs-progs-tests
btrfs qgroup destroy 1/5 /mnt/btrfs-progs-tests
btrfs quota disable /mnt/btrfs-progs-tests
btrfs replace start -f -B /dev/sda6 /dev/sda10 /mnt/btrfs-progs-tests
btrfs replace status /mnt/btrfs-progs-tests
btrfs replace start -f -B /dev/sda10 /dev/sda6 /mnt/btrfs-progs-tests
btrfs-convert /dev/sda6
btrfs-convert -r /dev/sda6
btrfs-convert -d /dev/sda6
btrfs-convert -i /dev/sda6
btrfs-convert -n /dev/sda6
btrfs-convert -N 4096 /dev/sda6
btrfs-convert -l test /dev/sda6
btrfs-convert -L /dev/sda6
btrfs-convert --no-progress /dev/sda6
mkfs.btrfs -f /dev/sda6
btrfs-image /dev/sda6 /tmp/btrfs_image.img
btrfs-image -r /tmp/btrfs_image.img /dev/sda6
mkfs.btrfs -f /dev/sda6
btrfs-image -c 0 /dev/sda6 /tmp/btrfs_image.img
btrfs-image -r /tmp/btrfs_image.img /dev/sda6
mkfs.btrfs -f /dev/sda6
btrfs-image -c 9 /dev/sda6 /tmp/btrfs_image.img
btrfs-image -r /tmp/btrfs_image.img /dev/sda6
mkfs.btrfs -f /dev/sda6
btrfs-image -t 0 /dev/sda6 /tmp/btrfs_image.img
btrfs-image -r /tmp/btrfs_image.img /dev/sda6
mkfs.btrfs -f /dev/sda6
btrfs-image -t 1 /dev/sda6 /tmp/btrfs_image.img
btrfs-image -r /tmp/btrfs_image.img /dev/sda6
mkfs.btrfs -f /dev/sda6
btrfs-image -t 32 /dev/sda6 /tmp/btrfs_image.img
btrfs-image -r /tmp/btrfs_image.img /dev/sda6
mkfs.btrfs -f /dev/sda6
btrfs-image -w /dev/sda6 /tmp/btrfs_image.img
btrfs-image -r /tmp/btrfs_image.img /dev/sda6
mkfs.btrfs -f /dev/sda6
btrfs-image -w /dev/sda6 /tmp/btrfs_image.img
btrfs-image -r /tmp/btrfs_image.img /dev/sda6
btrfs-image -r -t 0 /tmp/btrfs_image.img /dev/sda6
btrfs-image -r -t 1 /tmp/btrfs_image.img /dev/sda6
btrfs-image -r -t 32 /tmp/btrfs_image.img /dev/sda6
btrfs-image -r -o /tmp/btrfs_image.img /dev/sda6
3: Manual check relation source by:
grep DUP *.c
Confirmed that all source are modified.
4: Use this raid type manually, do some operations in fs,
no error found in command and dmesg.
5: Combination of dup conversion with fsck
Confirmed OK with relative kernel patch titled:
[PATCH] btrfs: Support convert to -d dup for btrfs-convert
export TEST_DEV='/dev/vdc'
export TEST_DIR='/var/ltf/tester/mnt'
do_dup_test()
{
local m_from="$1"
local d_from="$2"
local m_to="$3"
local d_to="$4"
echo "Convert from -m $m_from -d $d_from to -m $m_to -d $d_to"
umount "$TEST_DIR" &>/dev/null
./mkfs.btrfs -f -m "$m_from" -d "$d_from" "$TEST_DEV" >/dev/null || return 1
mount "$TEST_DEV" "$TEST_DIR" || return 1
cp -a /sbin/* "$TEST_DIR"
[[ "$m_from" != "$m_to" ]] && {
./btrfs balance start -f -mconvert="$m_to" "$TEST_DIR" || return 1
}
[[ "$d_from" != "$d_to" ]] && {
local opt=()
[[ "$d_to" == single ]] && opt+=("-f")
./btrfs balance start "${opt[@]}" -dconvert="$d_to" "$TEST_DIR" || return 1
}
umount "$TEST_DIR" || return 1
./btrfsck "$TEST_DEV" || return 1
echo
return 0
}
test_all()
{
for m_from in single dup; do
for d_from in single dup; do
for m_to in single dup; do
for d_to in single dup; do
do_dup_test "$m_from" "$d_from" "$m_to" "$d_to" || return 1
done
done
done
done
}
test_all
Signed-off-by: Zhao Lei <zhaolei@cn.fujitsu.com>
Tested-by: Austin S. Hemmelgarn <ahferroin7@gmail.com>
[ minor updates in the changelog ]
Signed-off-by: David Sterba <dsterba@suse.com>
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Signed-off-by: David Sterba <dsterba@suse.com>
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specified
When creating small Btrfs filesystem instances (i.e. filesystem size <= 1GiB),
mkfs.btrfs fails if both sectorsize and nodesize are specified on the command
line and sectorsize != nodesize, since mixed block groups involves both data
and metadata blocks sharing the same block group. This is an incorrect behavior
when '-M' option isn't specified on the command line.
This commit makes optional the creation of mixed block groups i.e. Mixed block
groups are created only when -M option is specified on the command line.
Since we now allow small filesystem instances with sectorsize != nodesize to
be created, we can end up in the following situation,
[root@localhost ~]# mkfs.btrfs -f -n 65536 /dev/loop0
btrfs-progs v3.19-rc2-405-g976307c
See http://btrfs.wiki.kernel.org for more information.
Performing full device TRIM (512.00MiB) ...
Label: (null)
UUID: 49fab72e-0c8b-466b-a3ca-d1bfe56475f0
Node size: 65536
Sector size: 4096
Filesystem size: 512.00MiB
Block group profiles:
Data: single 8.00MiB
Metadata: DUP 40.00MiB
System: DUP 12.00MiB
SSD detected: no
Incompat features: extref, skinny-metadata
Number of devices: 1
Devices:
ID SIZE PATH
1 512.00MiB /dev/loop0
[root@localhost ~]# mount /dev/loop0 /mnt/
mount: mount /dev/loop0 on /mnt failed: No space left on device
The ENOSPC occurs during the creation of the UUID tree. This is because of
things like large metadata block size, DUP mode used for metadata and global
reservation consuming space. Also, large nodesize does not make sense on small
filesystems, hence this should not be an issue.
Signed-off-by: Chandan Rajendra <chandan@linux.vnet.ibm.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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Signed-off-by: Anand Jain <anand.jain@oracle.com>
[ moved to util.c and renamed ]
Signed-off-by: David Sterba <dsterba@suse.com>
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Use btrfs_open_dir() in open_path_or_dev_mnt() to make the function
return error when target is neither block device nor btrfs mount point.
Also add "verbose" argument to let function output common error
message instead of putting duplicated lines in caller.
Before patch:
# ./btrfs device stats /mnt/tmp1
ERROR: getting dev info for devstats failed: Inappropriate ioctl for device
# ./btrfs replace start /dev/vdd /dev/vde /mnt/tmp1
ERROR: ioctl(DEV_REPLACE_STATUS) failed on "/mnt/tmp1": Inappropriate ioctl for device
After patch:
# ./btrfs device stats /mnt/tmp1
ERROR: not a btrfs filesystem: /mnt/tmp1
# ./btrfs replace start /dev/vdd /dev/vde /mnt/tmp1
ERROR: not a btrfs filesystem: /mnt/tmp1
Signed-off-by: Zhao Lei <zhaolei@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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Current code use fprintf(stderr, "...") to output warnning and
error information.
The error message have different style, as:
# grep fprintf *.c
fprintf(stderr, "Open ctree failed\n");
fprintf(stderr, "%s: open ctree failed\n", __func__);
fprintf(stderr, "ERROR: cannot open ctree\n");
...
And sometimes, we forgot add tailed '\n', or use printf instead,
as in current code:
printf("warning, device %llu is missing\n",
This patch introduce warning() and error() as common function,
to make:
1: Each warning and error information have same format
2: Easy to search/change all error message
3: Easy to modify function's internal for debug or other requirement,
for example:
print function/linenumber in error()
dumpstack in error()
add some trace for some style of message
add support for -v, -vv, ...
support for locales
custom output functions
support some special device/tty
Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Signed-off-by: Zhao Lei <zhaolei@cn.fujitsu.com>
[print newline after the message]
Signed-off-by: David Sterba <dsterba@suse.com>
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Check nodesize against features, not only sectorsize.
In fact, one of the btrfs-convert and mkfs differs in the nodesize
check.
This patch also provides the basis for later btrfs-convert fix.
Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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Old kernels before 3.9 do not provide ioctl BTRFS_IOC_GET_FSLABEL.
So we need to provide a fail safe logic for btrfs-progs running
on those kernel.
In this patch when get_label_mounted() fails on the old kernel
it will fail back to the old method and uses get_label_unmounted(),
where it will read from the disk directly.
Signed-off-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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We are using separate code for parsing unit mode in current code,
better to use common function.
This patch introduces a common function to specify units as arguments
and a common help message, to make every tool in btrfs having same unit
argument.
The benefits are:
1: Unify current tool's arguments for unit
2: Make tools in future easy to implement such argument
3: Changes (enhancement) in common function have effect on all
relative tools
Signed-off-by: Zhao Lei <zhaolei@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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This patch introduce open_btrfs_dir() to open a dir in btrfs
filesystem.
It can be used for several tools in btrfs-progs.
Signed-off-by: Zhao Lei <zhaolei@cn.fujitsu.com>
[renamed from open_btrfs_dir, adjusted error messages]
Signed-off-by: David Sterba <dsterba@suse.com>
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Signed-off-by: David Sterba <dsterba@suse.com>
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No functional change, just introduce the structure and switch current
users.
Signed-off-by: David Sterba <dsterba@suse.com>
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Check the source path length and do the copy.
Signed-off-by: David Sterba <dsterba@suse.cz>
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Anand reports that the static buffers used for pertty size strings cause
a stack overflow on SPARC. Zach proposed to change the printf format to
wrap the number and the suffix into a macro. This would require to
change all callsites of pretty_size* and is not very convienient to
write.
This patch replaces the per-call-site static buffers with a limited
number for slots that would be used on each invokation of pretty_size
and wrap around. The number of array slots shall be 10 for now, in
current codebase there are no more than 2 calls to pretty_size in a
single argument list.
Reported-by: Anand Jain <Anand.Jain@oracle.com>
CC: Zach Brown <zab@zabbo.net>
Signed-off-by: David Sterba <dsterba@suse.cz>
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The error string buffer passed as an argument is of a fixed size, though
we could print up to PATH_MAX + something bytes. Print the error message
directly.
Signed-off-by: David Sterba <dsterba@suse.cz>
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The error string buffer passed as an argument is of a fixed size, though
we could print up to PATH_MAX + something bytes. Print the error message
directly.
Signed-off-by: David Sterba <dsterba@suse.cz>
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Signed-off-by: David Sterba <dsterba@suse.cz>
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The variable argv0_buf was duplicated and the changes done in utils.c
were not propagated to help.c. So if an unknown commandline token was
found, the error message did not contain the known part:
$ btrfs scrub test
: unknown token 'test'
instead of
$ btrfs scrub test
btrfs scrub: uknown token 'test'
Signed-off-by: David Sterba <dsterba@suse.cz>
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Curretnly there are no features set for the converted filesystem and
it's not possible to request it like in mkfs.
Add new option -O|--features, use -O list-all to show all that are
supported for convert.
Note: from now on, convert without any -O option will use the same
defaults as mkfs. The original behaviour was rather confusing.
Convert is now more verbose about the parameters of the btrfs filesytem.
Signed-off-by: David Sterba <dsterba@suse.cz>
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Signed-off-by: David Sterba <dsterba@suse.cz>
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Currently BTRFS allows you to make bad choices of data and
metadata levels. For example -d raid1 -m raid0 means you can
only use half your total disk space, but will lose everything
if 1 disk fails. It should give a warning in these cases.
When making a filesystem, check that metadata mode is at least
as redundant as the data mode. For example give warning when:
-d raid1 -m raid0
Signed-off-by: Sam Tygier <samtygier@yahoo.co.uk>
[make the check more visible in mkfs output]
Signed-off-by: David Sterba <dsterba@suse.cz>
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After Patch:
remove BTRFS_SCAN_PROC scan method
There isn't any consumer for btrfs_scan_block_devices() so delete it.
Signed-off-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
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mkfs and convert will not support the same features, -O will print only
the list according to the given mask.
Signed-off-by: David Sterba <dsterba@suse.cz>
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We'll use them in convert as well. Move defines and the interface
functions to utils.*.
Signed-off-by: David Sterba <dsterba@suse.cz>
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Using the --leafsize will issue a warning. Replace leafsize with
nodesize in the mkfs-related code.
Signed-off-by: David Sterba <dsterba@suse.cz>
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