netdev - Re: [PATCH 5/6] unix: Support peeking offset for datagram and seqpacket sockets

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Message-Id: <20120221.150538.1746704835094201030.davem@davemloft.net>
Date:	Tue, 21 Feb 2012 15:05:38 -0500 (EST)
From:	David Miller <davem@...emloft.net>
To:	eric.dumazet@...il.com
Cc:	xemul@...allels.com, netdev@...r.kernel.org
Subject: Re: [PATCH 5/6] unix: Support peeking offset for datagram and
 seqpacket sockets

From: Eric Dumazet <eric.dumazet@...il.com>
Date: Tue, 21 Feb 2012 18:49:56 +0100

> Le mardi 21 février 2012 à 21:31 +0400, Pavel Emelyanov a écrit :
>> The sk_peek_off manipulations are protected with the unix_sk->readlock mutex.
>> This mutex is enough since all we need is to syncronize setting the offset
>> vs reading the queue head. The latter is fully covered with the mentioned lock.
>> 
>> The recently added __skb_recv_datagram's offset is used to pick the skb to
>> read the data from.
>> 
>> Signed-off-by: Pavel Emelyanov <xemul@...allels.com>
>> 
>> ---
>>  net/unix/af_unix.c |   30 +++++++++++++++++++++++++-----
>>  1 files changed, 25 insertions(+), 5 deletions(-)
> 
> Very nice !
> 
> Acked-by: Eric Dumazet <eric.dumazet@...il.com>

Applied.
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