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-rw-r--r--fs/btrfs/qgroup.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/btrfs/qgroup.h b/fs/btrfs/qgroup.h
index 98adf4ec7b01..c229256d6fd5 100644
--- a/fs/btrfs/qgroup.h
+++ b/fs/btrfs/qgroup.h
@@ -121,6 +121,8 @@ struct btrfs_inode;
#define BTRFS_QGROUP_RUNTIME_FLAG_CANCEL_RESCAN (1ULL << 63)
#define BTRFS_QGROUP_RUNTIME_FLAG_NO_ACCOUNTING (1ULL << 62)
+#define BTRFS_QGROUP_DROP_SUBTREE_THRES_DEFAULT (3)
+
/*
* Record a dirty extent, and info qgroup to update quota on it
*/