42 	struct dfs_ref_walk *rw;  in ref_walk_alloc()  local
44 	rw = kmalloc(sizeof(*rw), GFP_KERNEL);  in ref_walk_alloc()
45 	if (!rw)  in ref_walk_alloc()
47 	return rw;  in ref_walk_alloc()
50 static inline void ref_walk_init(struct dfs_ref_walk *rw)  in ref_walk_init()  argument
52 	memset(rw, 0, sizeof(*rw));  in ref_walk_init()
53 	ref_walk_cur(rw) = ref_walk_start(rw);  in ref_walk_init()
64 static inline void ref_walk_free(struct dfs_ref_walk *rw)  in ref_walk_free()  argument
66 	struct dfs_ref *ref = ref_walk_start(rw);  in ref_walk_free()
68 	for (; ref <= ref_walk_end(rw); ref++)  in ref_walk_free()
70 	kfree(rw);  in ref_walk_free()
73 static inline int ref_walk_advance(struct dfs_ref_walk *rw)  in ref_walk_advance()  argument
75 	struct dfs_ref *ref = ref_walk_cur(rw) + 1;  in ref_walk_advance()
77 	if (ref > ref_walk_end(rw))  in ref_walk_advance()
80 	ref_walk_cur(rw) = ref;  in ref_walk_advance()
85 ref_walk_next_tgt(struct dfs_ref_walk *rw)  in ref_walk_next_tgt()  argument
88 	struct dfs_ref *ref = ref_walk_cur(rw);  in ref_walk_next_tgt()
98 static inline int ref_walk_get_tgt(struct dfs_ref_walk *rw,  in ref_walk_get_tgt()  argument
102 	return dfs_cache_get_tgt_referral(ref_walk_path(rw) + 1,  in ref_walk_get_tgt()
103 					  ref_walk_tit(rw), tgt);  in ref_walk_get_tgt()
106 static inline int ref_walk_num_tgts(struct dfs_ref_walk *rw)  in ref_walk_num_tgts()  argument
108 	return dfs_cache_get_nr_tgts(ref_walk_tl(rw));  in ref_walk_num_tgts()
111 static inline void ref_walk_set_tgt_hint(struct dfs_ref_walk *rw)  in ref_walk_set_tgt_hint()  argument
113 	dfs_cache_noreq_update_tgthint(ref_walk_path(rw) + 1,  in ref_walk_set_tgt_hint()
114 				       ref_walk_tit(rw));  in ref_walk_set_tgt_hint()