857 static struct bpf_shtab_bucket *sock_hash_select_bucket(struct bpf_shtab *htab,  in sock_hash_select_bucket()  argument
860 	return &htab->buckets[hash & (htab->buckets_num - 1)];  in sock_hash_select_bucket()
880 	struct bpf_shtab *htab = container_of(map, struct bpf_shtab, map);  in __sock_hash_lookup_elem()  local
888 	bucket = sock_hash_select_bucket(htab, hash);  in __sock_hash_lookup_elem()
894 static void sock_hash_free_elem(struct bpf_shtab *htab,  in sock_hash_free_elem()  argument
897 	atomic_dec(&htab->count);  in sock_hash_free_elem()
904 	struct bpf_shtab *htab = container_of(map, struct bpf_shtab, map);  in sock_hash_delete_from_link()  local
909 	bucket = sock_hash_select_bucket(htab, elem->hash);  in sock_hash_delete_from_link()
921 		sock_hash_free_elem(htab, elem);  in sock_hash_delete_from_link()
928 	struct bpf_shtab *htab = container_of(map, struct bpf_shtab, map);  in sock_hash_delete_elem()  local
935 	bucket = sock_hash_select_bucket(htab, hash);  in sock_hash_delete_elem()
942 		sock_hash_free_elem(htab, elem);  in sock_hash_delete_elem()
949 static struct bpf_shtab_elem *sock_hash_alloc_elem(struct bpf_shtab *htab,  in sock_hash_alloc_elem()  argument
956 	if (atomic_inc_return(&htab->count) > htab->map.max_entries) {  in sock_hash_alloc_elem()
958 			atomic_dec(&htab->count);  in sock_hash_alloc_elem()
963 	new = bpf_map_kmalloc_node(&htab->map, htab->elem_size,  in sock_hash_alloc_elem()
965 				   htab->map.numa_node);  in sock_hash_alloc_elem()
967 		atomic_dec(&htab->count);  in sock_hash_alloc_elem()
979 	struct bpf_shtab *htab = container_of(map, struct bpf_shtab, map);  in sock_hash_update_common()  local
1003 	bucket = sock_hash_select_bucket(htab, hash);  in sock_hash_update_common()
1015 	elem_new = sock_hash_alloc_elem(htab, key, key_size, hash, sk, elem);  in sock_hash_update_common()
1029 		sock_hash_free_elem(htab, elem);  in sock_hash_update_common()
1044 	struct bpf_shtab *htab = container_of(map, struct bpf_shtab, map);  in sock_hash_get_next_key()  local
1053 	head = &sock_hash_select_bucket(htab, hash)->head;  in sock_hash_get_next_key()
1065 	i = hash & (htab->buckets_num - 1);  in sock_hash_get_next_key()
1068 	for (; i < htab->buckets_num; i++) {  in sock_hash_get_next_key()
1069 		head = &sock_hash_select_bucket(htab, i)->head;  in sock_hash_get_next_key()
1083 	struct bpf_shtab *htab;  in sock_hash_alloc()  local
1095 	htab = bpf_map_area_alloc(sizeof(*htab), NUMA_NO_NODE);  in sock_hash_alloc()
1096 	if (!htab)  in sock_hash_alloc()
1099 	bpf_map_init_from_attr(&htab->map, attr);  in sock_hash_alloc()
1101 	htab->buckets_num = roundup_pow_of_two(htab->map.max_entries);  in sock_hash_alloc()
1102 	htab->elem_size = sizeof(struct bpf_shtab_elem) +  in sock_hash_alloc()
1103 			  round_up(htab->map.key_size, 8);  in sock_hash_alloc()
1104 	if (htab->buckets_num == 0 ||  in sock_hash_alloc()
1105 	    htab->buckets_num > U32_MAX / sizeof(struct bpf_shtab_bucket)) {  in sock_hash_alloc()
1110 	htab->buckets = bpf_map_area_alloc(htab->buckets_num *  in sock_hash_alloc()
1112 					   htab->map.numa_node);  in sock_hash_alloc()
1113 	if (!htab->buckets) {  in sock_hash_alloc()
1118 	for (i = 0; i < htab->buckets_num; i++) {  in sock_hash_alloc()
1119 		INIT_HLIST_HEAD(&htab->buckets[i].head);  in sock_hash_alloc()
1120 		spin_lock_init(&htab->buckets[i].lock);  in sock_hash_alloc()
1123 	return &htab->map;  in sock_hash_alloc()
1125 	bpf_map_area_free(htab);  in sock_hash_alloc()
1131 	struct bpf_shtab *htab = container_of(map, struct bpf_shtab, map);  in sock_hash_free()  local
1143 	for (i = 0; i < htab->buckets_num; i++) {  in sock_hash_free()
1144 		bucket = sock_hash_select_bucket(htab, i);  in sock_hash_free()
1170 			sock_hash_free_elem(htab, elem);  in sock_hash_free()
1177 	bpf_map_area_free(htab->buckets);  in sock_hash_free()
1178 	bpf_map_area_free(htab);  in sock_hash_free()
1292 	struct bpf_shtab *htab;  member
1299 	const struct bpf_shtab *htab = info->htab;  in sock_hash_seq_find_next()  local
1315 	for (; info->bucket_id < htab->buckets_num; info->bucket_id++) {  in sock_hash_seq_find_next()
1316 		bucket = &htab->buckets[info->bucket_id];  in sock_hash_seq_find_next()
1396 	info->htab = container_of(aux->map, struct bpf_shtab, map);  in sock_hash_init_seq_private()
1409 	struct bpf_shtab *htab = container_of(map, struct bpf_shtab, map);  in sock_hash_mem_usage()  local
1410 	u64 usage = sizeof(*htab);  in sock_hash_mem_usage()
1412 	usage += htab->buckets_num * sizeof(struct bpf_shtab_bucket);  in sock_hash_mem_usage()
1413 	usage += atomic_read(&htab->count) * (u64)htab->elem_size;  in sock_hash_mem_usage()