53 int check_range(struct epfs_range *range)  in check_range()  argument
57 	if (range->range[0].begin >= range->range[0].end) {  in check_range()
58 		epfs_err("Invalid range: [%llu, %llu)", range->range[0].begin,  in check_range()
59 		       range->range[0].end);  in check_range()
63 	for (index = 1; index < range->num; index++) {  in check_range()
64 		if ((range->range[index].begin >= range->range[index].end) ||  in check_range()
65 		    (range->range[index].begin < range->range[index - 1].end)) {  in check_range()
67 			       range->range[index - 1].begin,  in check_range()
68 			       range->range[index - 1].end,  in check_range()
69 			       range->range[index].begin,  in check_range()
70 			       range->range[index].end);  in check_range()
75 		epfs_debug("epfs_range recv %llu ranges:", range->num);  in check_range()
76 		for (index = 0; index < range->num; index++) {  in check_range()
78 				 range->range[index].begin,  in check_range()
79 				 range->range[index].end);  in check_range()
93 	struct epfs_range *range;  in epfs_set_range()  local
124 	range = kzalloc(sizeof(header) + sizeof(header.range[0]) * num,  in epfs_set_range()
126 	if (!range) {  in epfs_set_range()
131 	if (copy_from_user(range, (struct epfs_range *)arg,  in epfs_set_range()
132 		sizeof(header) + sizeof(header.range[0]) * num)) {  in epfs_set_range()
135 		kfree(range);  in epfs_set_range()
138 	range->num = num;  in epfs_set_range()
140 	ret = check_range(range);  in epfs_set_range()
142 		kfree(range);  in epfs_set_range()
146 	info->range = range;  in epfs_set_range()
199 	struct epfs_range *range;  in epfs_read()  local
206 	range = info->range;  in epfs_read()
207 	if (!range) {  in epfs_read()
231 	while ((range->range[current_range_index].end <= pos) &&  in epfs_read()
232 	       (current_range_index < range->num))  in epfs_read()
238 		if (current_range_index >= range->num) {  in epfs_read()
247 		current_begin = range->range[current_range_index].begin;  in epfs_read()
248 		current_end = range->range[current_range_index].end;  in epfs_read()