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-rw-r--r--fs/btrfs/qgroup.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/fs/btrfs/qgroup.c b/fs/btrfs/qgroup.c
index e9ace099162c..8a8202956576 100644
--- a/fs/btrfs/qgroup.c
+++ b/fs/btrfs/qgroup.c
@@ -1651,6 +1651,11 @@ static int qgroup_update_counters(struct btrfs_fs_info *fs_info,
/* Exclusive -> exclusive, nothing changed */
}
}
+
+ /* For exclusive extent, free its reserved bytes too */
+ if (nr_old_roots == 0 && nr_new_roots == 1 &&
+ cur_new_count == nr_new_roots)
+ qg->reserved -= num_bytes;
if (dirty)
qgroup_dirty(fs_info, qg);
}