bpf, net: sock_map memory usage
sockmap and sockhash don't have something in common in allocation, so let's
introduce different helpers to calculate their memory usage.
The reuslt as follows,
- before
28: sockmap name count_map flags 0x0
key 4B value 4B max_entries 65536 memlock
524288B
29: sockhash name count_map flags 0x0
key 4B value 4B max_entries 65536 memlock
524288B
- after
28: sockmap name count_map flags 0x0
key 4B value 4B max_entries 65536 memlock
524608B
29: sockhash name count_map flags 0x0 <<<< no updated elements
key 4B value 4B max_entries 65536 memlock
1048896B
Signed-off-by: Yafang Shao <laoar.shao@gmail.com>
Link: https://lore.kernel.org/r/20230305124615.12358-16-laoar.shao@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>