netdev - Re: [net-next PATCH v3 05/15] net: sched: cls

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Date:	Tue, 09 Sep 2014 09:09:36 -0700
From:	John Fastabend <john.fastabend@...il.com>
To:	Eric Dumazet <eric.dumazet@...il.com>
CC:	xiyou.wangcong@...il.com, davem@...emloft.net, jhs@...atatu.com,
	netdev@...r.kernel.org, paulmck@...ux.vnet.ibm.com,
	brouer@...hat.com
Subject: Re: [net-next PATCH v3 05/15] net: sched: cls_flow use RCU

On 09/09/2014 05:41 AM, Eric Dumazet wrote:
> On Mon, 2014-09-08 at 22:56 -0700, John Fastabend wrote:
>> Signed-off-by: John Fastabend <john.r.fastabend@...el.com>
>> ---
>>   net/sched/cls_flow.c |  145 +++++++++++++++++++++++++++++---------------------
>>   1 file changed, 84 insertions(+), 61 deletions(-)
>>
>> diff --git a/net/sched/cls_flow.c b/net/sched/cls_flow.c
>> index 35be16f..e33560b 100644
>> --- a/net/sched/cls_flow.c
>> +++ b/net/sched/cls_flow.c
>> @@ -34,12 +34,15 @@
>>
>>   struct flow_head {
>>   	struct list_head	filters;
>> +	struct rcu_head		rcu;
>>   };
>>
>>   struct flow_filter {
>>   	struct list_head	list;
>> +	struct rcu_head		rcu;
>
> Please move these 2 new fields at the end of structure, they are only
> used at dismantle phase.
>
> Patch looks fine otherwise, thanks !
>
>

2 new fields? The first rcu struct is already at end of
structure. I assume you just mean the rcu struct in flow_filter.

.John

-- 
John Fastabend         Intel Corporation
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