47 	struct dfs_ref_walk *rw;  in ref_walk_alloc()  local
49 	rw = kmalloc(sizeof(*rw), GFP_KERNEL);  in ref_walk_alloc()
50 	if (!rw)  in ref_walk_alloc()
52 	return rw;  in ref_walk_alloc()
55 static inline void ref_walk_init(struct dfs_ref_walk *rw,  in ref_walk_init()  argument
58 	memset(rw, 0, sizeof(*rw));  in ref_walk_init()
59 	rw->mnt_ctx = mnt_ctx;  in ref_walk_init()
60 	ref_walk_cur(rw) = ref_walk_start(rw);  in ref_walk_init()
73 static inline void ref_walk_free(struct dfs_ref_walk *rw)  in ref_walk_free()  argument
77 	if (!rw)  in ref_walk_free()
80 	for (ref = ref_walk_start(rw); ref <= ref_walk_end(rw); ref++)  in ref_walk_free()
82 	kfree(rw);  in ref_walk_free()
85 static inline int ref_walk_advance(struct dfs_ref_walk *rw)  in ref_walk_advance()  argument
87 	struct dfs_ref *ref = ref_walk_cur(rw) + 1;  in ref_walk_advance()
89 	if (ref > ref_walk_end(rw))  in ref_walk_advance()
92 	ref_walk_cur(rw) = ref;  in ref_walk_advance()
97 ref_walk_next_tgt(struct dfs_ref_walk *rw)  in ref_walk_next_tgt()  argument
99 	struct dfs_ref *ref = ref_walk_cur(rw);  in ref_walk_next_tgt()
118 static inline int ref_walk_get_tgt(struct dfs_ref_walk *rw,  in ref_walk_get_tgt()  argument
122 	return dfs_cache_get_tgt_referral(ref_walk_path(rw) + 1,  in ref_walk_get_tgt()
123 					  ref_walk_tit(rw), tgt);  in ref_walk_get_tgt()
126 static inline void ref_walk_set_tgt_hint(struct dfs_ref_walk *rw)  in ref_walk_set_tgt_hint()  argument
128 	dfs_cache_noreq_update_tgthint(ref_walk_path(rw) + 1,  in ref_walk_set_tgt_hint()
129 				       ref_walk_tit(rw));  in ref_walk_set_tgt_hint()
132 static inline void ref_walk_set_tcon(struct dfs_ref_walk *rw,  in ref_walk_set_tcon()  argument
135 	struct dfs_ref *ref = ref_walk_start(rw);  in ref_walk_set_tcon()
137 	for (; ref <= ref_walk_cur(rw); ref++) {  in ref_walk_set_tcon()
145 static inline void ref_walk_mark_end(struct dfs_ref_walk *rw)  in ref_walk_mark_end()  argument
147 	struct dfs_ref *ref = ref_walk_cur(rw) - 1;  in ref_walk_mark_end()
149 	WARN_ON_ONCE(ref < ref_walk_start(rw));  in ref_walk_mark_end()