46 	struct dfs_ref_walk *rw;  in ref_walk_alloc()  local
48 	rw = kmalloc(sizeof(*rw), GFP_KERNEL);  in ref_walk_alloc()
49 	if (!rw)  in ref_walk_alloc()
51 	return rw;  in ref_walk_alloc()
54 static inline void ref_walk_init(struct dfs_ref_walk *rw)  in ref_walk_init()  argument
56 	memset(rw, 0, sizeof(*rw));  in ref_walk_init()
57 	ref_walk_cur(rw) = ref_walk_start(rw);  in ref_walk_init()
70 static inline void ref_walk_free(struct dfs_ref_walk *rw)  in ref_walk_free()  argument
74 	if (!rw)  in ref_walk_free()
77 	for (ref = ref_walk_start(rw); ref <= ref_walk_end(rw); ref++)  in ref_walk_free()
79 	kfree(rw);  in ref_walk_free()
82 static inline int ref_walk_advance(struct dfs_ref_walk *rw)  in ref_walk_advance()  argument
84 	struct dfs_ref *ref = ref_walk_cur(rw) + 1;  in ref_walk_advance()
86 	if (ref > ref_walk_end(rw))  in ref_walk_advance()
89 	ref_walk_cur(rw) = ref;  in ref_walk_advance()
94 ref_walk_next_tgt(struct dfs_ref_walk *rw)  in ref_walk_next_tgt()  argument
97 	struct dfs_ref *ref = ref_walk_cur(rw);  in ref_walk_next_tgt()
107 static inline int ref_walk_get_tgt(struct dfs_ref_walk *rw,  in ref_walk_get_tgt()  argument
111 	return dfs_cache_get_tgt_referral(ref_walk_path(rw) + 1,  in ref_walk_get_tgt()
112 					  ref_walk_tit(rw), tgt);  in ref_walk_get_tgt()
115 static inline int ref_walk_num_tgts(struct dfs_ref_walk *rw)  in ref_walk_num_tgts()  argument
117 	return dfs_cache_get_nr_tgts(ref_walk_tl(rw));  in ref_walk_num_tgts()
120 static inline void ref_walk_set_tgt_hint(struct dfs_ref_walk *rw)  in ref_walk_set_tgt_hint()  argument
122 	dfs_cache_noreq_update_tgthint(ref_walk_path(rw) + 1,  in ref_walk_set_tgt_hint()
123 				       ref_walk_tit(rw));  in ref_walk_set_tgt_hint()
126 static inline void ref_walk_set_tcon(struct dfs_ref_walk *rw,  in ref_walk_set_tcon()  argument
129 	struct dfs_ref *ref = ref_walk_start(rw);  in ref_walk_set_tcon()
131 	for (; ref <= ref_walk_cur(rw); ref++) {  in ref_walk_set_tcon()