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From: Jamal Hadi Salim <jhs@mojatatu.com>
To: Eric Dumazet <eric.dumazet@gmail.com>
Cc: davem@davemloft.net, netdev@vger.kernel.org,
	daniel@iogearbox.net, xiyou.wangcong@gmail.com
Subject: Re: [PATCH v3 net-next 1/1] net_sched: Introduce skbmod action
Date: Tue, 6 Sep 2016 08:03:33 -0400	[thread overview]
Message-ID: <66a91fd3-9d87-9e34-57f1-b44804760a65@mojatatu.com> (raw)
In-Reply-To: <1472560518.14381.291.camel@edumazet-glaptop3.roam.corp.google.com>

On 16-08-30 08:35 AM, Eric Dumazet wrote:

> synchronize_rcu() might bee to expensive if you plan to change actions
> hundred of times per second.
>
> You could instead add a 'struct rcu_head rcu;'  field in struct
> tcf_skbmod_params  (but make sure this is not exported to user space)
>
> Then :
>
>         if (ovr)
>                  spin_unlock_bh(&d->tcf_lock);
>          kfree_rcu(p_old, rcu);
>

Ok, working on this variant. Will post today or tommorow.

cheers,
jamal

  reply	other threads:[~2016-09-06 12:03 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-08-28 12:19 [PATCH v3 net-next 1/1] net_sched: Introduce skbmod action Jamal Hadi Salim
2016-08-28 14:48 ` Alexei Starovoitov
2016-08-29 10:35   ` Jamal Hadi Salim
2016-08-28 16:07 ` Eric Dumazet
2016-08-29  5:10   ` Cong Wang
2016-08-29 13:27     ` Eric Dumazet
2016-08-29 10:38   ` Jamal Hadi Salim
2016-08-29 11:00     ` Daniel Borkmann
2016-08-29 11:40       ` Jamal Hadi Salim
2016-08-29 11:55         ` Jamal Hadi Salim
2016-08-29 11:35     ` Jamal Hadi Salim
2016-08-29 18:20       ` Eric Dumazet
2016-08-30 11:12         ` Jamal Hadi Salim
2016-08-30 11:57           ` Jamal Hadi Salim
2016-08-30 12:35             ` Eric Dumazet
2016-09-06 12:03               ` Jamal Hadi Salim [this message]
2016-08-30 12:44             ` Eric Dumazet
2016-09-06 12:08               ` Jamal Hadi Salim
2016-09-06 14:25                 ` Eric Dumazet
2016-09-08 10:38                   ` Jamal Hadi Salim
2016-09-08 16:02                     ` Eric Dumazet
2016-09-08 16:11                       ` Eric Dumazet
2016-09-09 12:33                         ` Jamal Hadi Salim
2016-08-30 12:20           ` Eric Dumazet

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