83 static struct ovl_cache_entry *ovl_cache_entry_new(struct ovl_readdir_data *rdd,  in ovl_cache_entry_new()  argument
102 		p->next_maybe_whiteout = rdd->first_maybe_whiteout;  in ovl_cache_entry_new()
103 		rdd->first_maybe_whiteout = p;  in ovl_cache_entry_new()
108 static int ovl_cache_entry_add_rb(struct ovl_readdir_data *rdd,  in ovl_cache_entry_add_rb()  argument
112 	struct rb_node **newp = &rdd->root.rb_node;  in ovl_cache_entry_add_rb()
131 	p = ovl_cache_entry_new(rdd, name, len, ino, d_type);  in ovl_cache_entry_add_rb()
135 	list_add_tail(&p->l_node, rdd->list);  in ovl_cache_entry_add_rb()
137 	rb_insert_color(&p->node, &rdd->root);  in ovl_cache_entry_add_rb()
142 static int ovl_fill_lower(struct ovl_readdir_data *rdd,  in ovl_fill_lower()  argument
148 	p = ovl_cache_entry_find(&rdd->root, name, namelen);  in ovl_fill_lower()
150 		list_move_tail(&p->l_node, &rdd->middle);  in ovl_fill_lower()
152 		p = ovl_cache_entry_new(rdd, name, namelen, ino, d_type);  in ovl_fill_lower()
154 			rdd->err = -ENOMEM;  in ovl_fill_lower()
156 			list_add_tail(&p->l_node, &rdd->middle);  in ovl_fill_lower()
159 	return rdd->err;  in ovl_fill_lower()
192 	struct ovl_readdir_data *rdd =  in ovl_fill_merge()  local
195 	rdd->count++;  in ovl_fill_merge()
196 	if (!rdd->is_merge)  in ovl_fill_merge()
197 		return ovl_cache_entry_add_rb(rdd, name, namelen, ino, d_type);  in ovl_fill_merge()
199 		return ovl_fill_lower(rdd, name, namelen, offset, ino, d_type);  in ovl_fill_merge()
202 static int ovl_check_whiteouts(struct dentry *dir, struct ovl_readdir_data *rdd)  in ovl_check_whiteouts()  argument
222 		while (rdd->first_maybe_whiteout) {  in ovl_check_whiteouts()
223 			p = rdd->first_maybe_whiteout;  in ovl_check_whiteouts()
224 			rdd->first_maybe_whiteout = p->next_maybe_whiteout;  in ovl_check_whiteouts()
240 			       struct ovl_readdir_data *rdd)  in ovl_dir_read()  argument
249 	rdd->first_maybe_whiteout = NULL;  in ovl_dir_read()
250 	rdd->ctx.pos = 0;  in ovl_dir_read()
252 		rdd->count = 0;  in ovl_dir_read()
253 		rdd->err = 0;  in ovl_dir_read()
254 		err = iterate_dir(realfile, &rdd->ctx);  in ovl_dir_read()
256 			err = rdd->err;  in ovl_dir_read()
257 	} while (!err && rdd->count);  in ovl_dir_read()
259 	if (!err && rdd->first_maybe_whiteout)  in ovl_dir_read()
260 		err = ovl_check_whiteouts(realpath->dentry, rdd);  in ovl_dir_read()
288 	struct ovl_readdir_data rdd = {  in ovl_dir_read_merged()  local
300 			err = ovl_dir_read(&realpath, &rdd);  in ovl_dir_read_merged()
308 			list_add(&rdd.middle, rdd.list);  in ovl_dir_read_merged()
309 			rdd.is_merge = true;  in ovl_dir_read_merged()
310 			err = ovl_dir_read(&realpath, &rdd);  in ovl_dir_read_merged()
311 			list_del(&rdd.middle);  in ovl_dir_read_merged()