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btrfs: fix referenced/exclusive check in squota_check_parent_usage()

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We compared rfer_cmpr against excl_cmpr_sum instead of rfer_cmpr_sum
which is confusing.

I expect that
rfer_cmpr == excl_cmpr in squota, but it is much better to be consistent
in case of any surprises or bugs.

Reported-by: Chris Mason <clm@meta.com>
Link: https://lore.kernel.org/linux-btrfs/cover.1764796022.git.boris@bur.io/T/#mccb231643ffd290b44a010d4419474d280be5537
Reviewed-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: Boris Burkov <boris@bur.io>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Boris Burkov
2026-02-11 11:01:25 -08:00
committed by David Sterba
parent 8ac7fad32b
commit 2ab2244642
1 changed files with 1 additions and 1 deletions
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2
fs/btrfs/qgroup.c
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@@ -370,7 +370,7 @@ static bool squota_check_parent_usage(struct btrfs_fs_info *fs_info, struct btrf
nr_members++;
}
mismatch = (parent->excl != excl_sum || parent->rfer != rfer_sum ||
parent->excl_cmpr != excl_cmpr_sum || parent->rfer_cmpr != excl_cmpr_sum);
parent->excl_cmpr != excl_cmpr_sum || parent->rfer_cmpr != rfer_cmpr_sum);
WARN(mismatch,
"parent squota qgroup %hu/%llu has mismatched usage from its %d members. "