1233 static void cowify_req(struct io_thread_req *req, struct io_desc *segment,  in cowify_req()  argument
1240 	if (segment->length > (sizeof(segment->sector_mask) * 8) << SECTOR_SHIFT)  in cowify_req()
1244 		for (i = 0; i < segment->length >> SECTOR_SHIFT; i++) {  in cowify_req()
1247 					    &segment->sector_mask);  in cowify_req()
1250 		cowify_bitmap(offset, segment->length, &segment->sector_mask,  in cowify_req()
1251 			      &segment->cow_offset, bitmap, bitmap_offset,  in cowify_req()
1252 			      segment->bitmap_words, bitmap_len);  in cowify_req()
1457 static int update_bitmap(struct io_thread_req *req, struct io_desc *segment)  in update_bitmap()  argument
1461 	if (segment->cow_offset == -1)  in update_bitmap()
1464 	n = os_pwrite_file(req->fds[1], &segment->bitmap_words,  in update_bitmap()
1465 			  sizeof(segment->bitmap_words), segment->cow_offset);  in update_bitmap()
1466 	if (n != sizeof(segment->bitmap_words))  in update_bitmap()