btrfs: extend balance filter usage to take minimum and maximum

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Similar to the 'limit' filter, we can enhance the 'usage' filter to
accept a range. The change is backward compatible, the range is applied
only in connection with the BTRFS_BALANCE_ARGS_USAGE_RANGE flag.

We don't have a usecase yet, the current syntax has been sufficient. The
enhancement should provide parity with other range-like filters.

Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Chris Mason <clm@fb.com>

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David Sterba 2015-10-20 18:22:13 +02:00 • committed by Chris Mason

parent dee32d0ac3

commit bc3094673f

4 changed files with 60 additions and 4 deletions

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8

include/uapi/linux/btrfs.h

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