o->size = -1ULL;
if (o->verify != VERIFY_NONE) {
- if (td_write(td) && o->do_verify && o->numjobs > 1) {
- log_info("Multiple writers may overwrite blocks that "
- "belong to other jobs. This can cause "
+ if (td_write(td) && o->do_verify && o->numjobs > 1 &&
+ (o->filename ||
+ !(o->unique_filename &&
+ strstr(o->filename_format, "$jobname") &&
+ strstr(o->filename_format, "$jobnum") &&
+ strstr(o->filename_format, "$filenum")))) {
+ log_info("fio: multiple writers may overwrite blocks "
+ "that belong to other jobs. This can cause "
"verification failures.\n");
ret = warnings_fatal;
}