1 files changed, 6 insertions, 12 deletions

diff --git a/include/linux/crush/crush.h b/include/linux/crush/crush.h
index 97e435b191f..7c4750811b9 100644
--- a/include/linux/crush/crush.h
+++ b/include/linux/crush/crush.h
@@ -151,16 +151,6 @@ struct crush_map {
         struct crush_bucket **buckets;
         struct crush_rule **rules;
 
-        /*
-         * Parent pointers to identify the parent bucket a device or
-         * bucket in the hierarchy.  If an item appears more than
-         * once, this is the _last_ time it appeared (where buckets
-         * are processed in bucket id order, from -1 on down to
-         * -max_buckets.
-         */
-        __u32 *bucket_parents;
-        __u32 *device_parents;
-
         __s32 max_buckets;
         __u32 max_rules;
         __s32 max_devices;
@@ -168,8 +158,7 @@ struct crush_map {
 
 
 /* crush.c */
-extern int crush_get_bucket_item_weight(struct crush_bucket *b, int pos);
-extern void crush_calc_parents(struct crush_map *map);
+extern int crush_get_bucket_item_weight(const struct crush_bucket *b, int pos);
 extern void crush_destroy_bucket_uniform(struct crush_bucket_uniform *b);
 extern void crush_destroy_bucket_list(struct crush_bucket_list *b);
 extern void crush_destroy_bucket_tree(struct crush_bucket_tree *b);
@@ -177,4 +166,9 @@ extern void crush_destroy_bucket_straw(struct crush_bucket_straw *b);
 extern void crush_destroy_bucket(struct crush_bucket *b);
 extern void crush_destroy(struct crush_map *map);
 
+static inline int crush_calc_tree_node(int i)
+{
+        return ((i+1) << 1)-1;
+}
+
 #endif