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https://github.com/kdave/btrfs-progs
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b64f8437b6
The implicit devid is 1 but when it does not exist then the command
'btrfs fi resize max /path' fails and requires the user to specify the
number (and finding it elsewhere, e.g. in 'btrfs fi us -T' output).
This is a usability bug, we can verify if devid 1 exists and use the
lowest devid as a fallback. This does what user would expected, though
there's still a warning. Kernel has the hardcoded devid 1 when none is
specified, with this fix in user space the kernel does not need to be
changed (or could behave the same eventually).
Example use:
$ btrfs fi us -T .
Data Metadata System
Id Path single single single Unallocated Total Slack
-- ---------- --------- --------- -------- ----------- ------- -----
4 /dev/loop3 - - - 4.00GiB 4.00GiB -
-- ---------- --------- --------- -------- ----------- ------- -----
Total 416.00MiB 256.00MiB 64.00MiB 4.00GiB 4.00GiB 0.00B
Used 0.00B 128.00KiB 16.00KiB
$ btrfs fi resize max .
WARNING: no devid specified means devid 1 which does not exist, using
lowest devid 4 as a fallback
Resize device id 4 (/dev/loop3) from 4.00GiB to max
Issue: #470
Signed-off-by: David Sterba <dsterba@suse.com>
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|---|---|---|
| .. | ||
| balance.c | ||
| commands.h | ||
| device.c | ||
| filesystem-du.c | ||
| filesystem-usage.c | ||
| filesystem-usage.h | ||
| filesystem.c | ||
| inspect-dump-super.c | ||
| inspect-dump-tree.c | ||
| inspect-tree-stats.c | ||
| inspect.c | ||
| property.c | ||
| props.h | ||
| qgroup.c | ||
| qgroup.h | ||
| quota.c | ||
| receive-dump.c | ||
| receive-dump.h | ||
| receive.c | ||
| reflink.c | ||
| replace.c | ||
| rescue-chunk-recover.c | ||
| rescue-super-recover.c | ||
| rescue.c | ||
| rescue.h | ||
| restore.c | ||
| scrub.c | ||
| send.c | ||
| subvolume-list.c | ||
| subvolume.c | ||
| subvolume.h | ||