fsg_store_file
return fsg_store_file(curlun, filesem, buf, count);
return fsg_store_file(opts->lun, &fsg_opts->common->filesem, page, len);
EXPORT_SYMBOL_GPL(fsg_store_file);
ret = fsg_store_file(curlun, filesem, "", 0);
ssize_t fsg_store_file(struct fsg_lun *curlun, struct rw_semaphore *filesem,