btrfs: relax squota parent qgroup deletion rule

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Currently, with squotas, we do not allow removing a parent qgroup with
no members if it still has usage accounted to it. This makes it really
difficult to recover from accounting bugs, as we have no good way of
getting back to 0 usage.

Instead, allow deletion (it's safe at 0 members..) while still warning
about the inconsistency by adding a squota parent check.

Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Boris Burkov <boris@bur.io>
Signed-off-by: David Sterba <dsterba@suse.com>

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Boris Burkov 2025-12-01 15:35:02 -08:00 • committed by David Sterba

parent 9c46bcda5f

commit adb0af40fe

1 changed files with 35 additions and 15 deletions

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fs/btrfs/qgroup.c

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