hash_for_each_safe
hash_for_each_safe(sync->fences, i, tmp, e, node) {
hash_for_each_safe(sync->fences, i, tmp, e, node) {
hash_for_each_safe(source->fences, i, tmp, e, node) {
hash_for_each_safe(sync->fences, i, tmp, e, node) {
hash_for_each_safe(sync->fences, i, tmp, e, node) {
hash_for_each_safe(engine->cmd_hash, i, tmp, desc_node, node) {