On Thu, Jan 25, 2018 at 12:03:02PM -0500, David Miller wrote:

From: Roman Gushchin <redacted>
Date: Thu, 25 Jan 2018 00:19:11 +0000

quoted

@@ -476,6 +477,10 @@ struct sock *inet_csk_accept(struct sock *sk, int flags, int *err, bool kern)
 		spin_unlock_bh(&queue->fastopenq.lock);
 	}
 	mem_cgroup_sk_alloc(newsk);
+	amt = sk_memory_allocated(newsk);
+	if (amt && newsk->sk_memcg)
+		mem_cgroup_charge_skmem(newsk->sk_memcg, amt);
+

This looks confusing to me.

sk_memory_allocated() is the total amount of memory used by all
sockets for a particular "struct proto", not just for that specific
socket.

Oh, I see...

Maybe I don't understand how this socket memcg stuff works, but it
seems like you should be looking instead at how much memory is
allocated to this specific socket.

Yes, this is what I wanted to do originally.
Let me find a proper way to do this.

Thank you!

Roman