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Diffstat (limited to 'libbcachefs/subvolume_types.h')
-rw-r--r--libbcachefs/subvolume_types.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/libbcachefs/subvolume_types.h b/libbcachefs/subvolume_types.h
index c596e427..86833445 100644
--- a/libbcachefs/subvolume_types.h
+++ b/libbcachefs/subvolume_types.h
@@ -6,6 +6,8 @@
typedef DARRAY(u32) snapshot_id_list;
+#define IS_ANCESTOR_BITMAP 128
+
struct snapshot_t {
u32 parent;
u32 skip[3];
@@ -14,6 +16,7 @@ struct snapshot_t {
u32 subvol; /* Nonzero only if a subvolume points to this node: */
u32 tree;
u32 equiv;
+ unsigned long is_ancestor[BITS_TO_LONGS(IS_ANCESTOR_BITMAP)];
};
struct snapshot_table {