netdev - Re: [PATCH net-next 1/3] net: core: Add a UID field to struct sock.

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Date:   Thu, 27 Oct 2016 16:02:11 -0400 (EDT)
From:   David Miller <davem@...emloft.net>
To:     eric.dumazet@...il.com
Cc:     lorenzo@...gle.com, netdev@...r.kernel.org, ek@...gle.com,
        zenczykowski@...il.com
Subject: Re: [PATCH net-next 1/3] net: core: Add a UID field to struct sock.

From: Eric Dumazet <eric.dumazet@...il.com>
Date: Thu, 27 Oct 2016 10:36:26 -0700

> On Fri, 2016-10-28 at 02:20 +0900, Lorenzo Colitti wrote:
> 
>> diff --git a/net/core/sock.c b/net/core/sock.c
>> index d8e4532e..831e4e8 100644
>> --- a/net/core/sock.c
>> +++ b/net/core/sock.c
>> @@ -1570,6 +1570,7 @@ struct sock *sk_clone_lock(const struct sock *sk, const gfp_t priority)
>>  		 */
>>  		sk_refcnt_debug_inc(newsk);
>>  		sk_set_socket(newsk, NULL);
>> +		newsk->sk_uid = sk->sk_uid;
> 
> Not sure why this is needed ?
> 
> sk_clone_lock() already copies sk to newsk, using sock_copy(newsk, sk);

Agreed.