diff options
Diffstat (limited to 'kernel/bpf/lpm_trie.c')
| -rw-r--r-- | kernel/bpf/lpm_trie.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/kernel/bpf/lpm_trie.c b/kernel/bpf/lpm_trie.c index d833496e9e42..dc23f2ac9cde 100644 --- a/kernel/bpf/lpm_trie.c +++ b/kernel/bpf/lpm_trie.c @@ -720,6 +720,16 @@ static int trie_check_btf(const struct bpf_map *map, -EINVAL : 0; } +static u64 trie_mem_usage(const struct bpf_map *map) +{ + struct lpm_trie *trie = container_of(map, struct lpm_trie, map); + u64 elem_size; + + elem_size = sizeof(struct lpm_trie_node) + trie->data_size + + trie->map.value_size; + return elem_size * READ_ONCE(trie->n_entries); +} + BTF_ID_LIST_SINGLE(trie_map_btf_ids, struct, lpm_trie) const struct bpf_map_ops trie_map_ops = { .map_meta_equal = bpf_map_meta_equal, @@ -733,5 +743,6 @@ const struct bpf_map_ops trie_map_ops = { .map_update_batch = generic_map_update_batch, .map_delete_batch = generic_map_delete_batch, .map_check_btf = trie_check_btf, + .map_mem_usage = trie_mem_usage, .map_btf_id = &trie_map_btf_ids[0], }; |