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-rw-r--r--fs/btrfs/ctree.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 851f2355f3c8..8b851ac7c3fa 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -1061,6 +1061,12 @@ struct btrfs_block_group_item {
__le64 flags;
} __attribute__ ((__packed__));
+#define BTRFS_QGROUP_LEVEL_SHIFT 48
+static inline u64 btrfs_qgroup_level(u64 qgroupid)
+{
+ return qgroupid >> BTRFS_QGROUP_LEVEL_SHIFT;
+}
+
/*
* is subvolume quota turned on?
*/