From mboxrd@z Thu Jan  1 00:00:00 1970
From: Eric Dumazet <eric.dumazet@gmail.com>
Subject: Re: [PATCH net-next-2.6] net: Xmit Packet Steering (XPS)
Date: Fri, 20 Nov 2009 22:43:55 +0100
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Cc: "David S. Miller" <davem@davemloft.net>,
	Tom Herbert <therbert@google.com>,
	Linux Netdev List <netdev@vger.kernel.org>
To: Jarek Poplawski <jarkao2@gmail.com>
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Jarek Poplawski a =E9crit :
> On Fri, Nov 20, 2009 at 03:45:42PM +0100, Eric Dumazet wrote:
>> Jarek Poplawski a =E9crit :
>>> On 20-11-2009 00:46, Eric Dumazet wrote:
>>> scheduled) IPIs?
>> Repeat after me :
>>
>> lockdep is my friend, lockdep is my friend, lockdep is my friend... =
:)
>=20
> Hmm... Actually, why did I have to do lockdep's job...

In fact I could not find why irq masking is necessary, and lockdep is
fine with my code and my testings. Care to explain what problem you spo=
tted ?


In fact, I originally used  cmpxchg() and xchg() (no spinlock),
but had to find the end of skb list in the IPI handler, so I chose
to use a skb_head instead to let the IPI handler be as short as possibl=
e.