44 	struct dfs_ref_walk *rw;  in ref_walk_alloc()  local
46 	rw = kmalloc(sizeof(*rw), GFP_KERNEL);  in ref_walk_alloc()
47 	if (!rw)  in ref_walk_alloc()
49 	return rw;  in ref_walk_alloc()
52 static inline void ref_walk_init(struct dfs_ref_walk *rw)  in ref_walk_init()  argument
54 	memset(rw, 0, sizeof(*rw));  in ref_walk_init()
55 	ref_walk_cur(rw) = ref_walk_start(rw);  in ref_walk_init()
66 static inline void ref_walk_free(struct dfs_ref_walk *rw)  in ref_walk_free()  argument
68 	struct dfs_ref *ref = ref_walk_start(rw);  in ref_walk_free()
70 	for (; ref <= ref_walk_end(rw); ref++)  in ref_walk_free()
72 	kfree(rw);  in ref_walk_free()
75 static inline int ref_walk_advance(struct dfs_ref_walk *rw)  in ref_walk_advance()  argument
77 	struct dfs_ref *ref = ref_walk_cur(rw) + 1;  in ref_walk_advance()
79 	if (ref > ref_walk_end(rw))  in ref_walk_advance()
82 	ref_walk_cur(rw) = ref;  in ref_walk_advance()
87 ref_walk_next_tgt(struct dfs_ref_walk *rw)  in ref_walk_next_tgt()  argument
90 	struct dfs_ref *ref = ref_walk_cur(rw);  in ref_walk_next_tgt()
100 static inline int ref_walk_get_tgt(struct dfs_ref_walk *rw,  in ref_walk_get_tgt()  argument
104 	return dfs_cache_get_tgt_referral(ref_walk_path(rw) + 1,  in ref_walk_get_tgt()
105 					  ref_walk_tit(rw), tgt);  in ref_walk_get_tgt()
108 static inline int ref_walk_num_tgts(struct dfs_ref_walk *rw)  in ref_walk_num_tgts()  argument
110 	return dfs_cache_get_nr_tgts(ref_walk_tl(rw));  in ref_walk_num_tgts()
113 static inline void ref_walk_set_tgt_hint(struct dfs_ref_walk *rw)  in ref_walk_set_tgt_hint()  argument
115 	dfs_cache_noreq_update_tgthint(ref_walk_path(rw) + 1,  in ref_walk_set_tgt_hint()
116 				       ref_walk_tit(rw));  in ref_walk_set_tgt_hint()