350 	struct stack_map_bucket *bucket, *new_bucket, *old_bucket;  in BPF_CALL_3()  local
430 	old_bucket = xchg(&smap->buckets[id], new_bucket);  in BPF_CALL_3()
431 	if (old_bucket)  in BPF_CALL_3()
432 		pcpu_freelist_push(&smap->freelist, &old_bucket->fnode);  in BPF_CALL_3()
522 	struct stack_map_bucket *bucket, *old_bucket;  in bpf_stackmap_copy()  local
536 	old_bucket = xchg(&smap->buckets[id], bucket);  in bpf_stackmap_copy()
537 	if (old_bucket)  in bpf_stackmap_copy()
538 		pcpu_freelist_push(&smap->freelist, &old_bucket->fnode);  in bpf_stackmap_copy()
581 	struct stack_map_bucket *old_bucket;  in stack_map_delete_elem()  local
587 	old_bucket = xchg(&smap->buckets[id], NULL);  in stack_map_delete_elem()
588 	if (old_bucket) {  in stack_map_delete_elem()
589 		pcpu_freelist_push(&smap->freelist, &old_bucket->fnode);  in stack_map_delete_elem()