netdev - Re: [net-next RFC 1/1] net sched actions: introduce timestamp for first time used

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Message-ID: <CAM_iQpWXgncANS5MrBzrZiEVSbGzNptrAjisg_K2NTA-PsAMKg@mail.gmail.com>
Date:	Wed, 18 May 2016 10:17:24 -0700
From:	Cong Wang <xiyou.wangcong@...il.com>
To:	Jamal Hadi Salim <jhs@...atatu.com>
Cc:	David Miller <davem@...emloft.net>,
	Linux Kernel Network Developers <netdev@...r.kernel.org>,
	Daniel Borkmann <daniel@...earbox.net>, nbd@....name,
	baronchon@...m.org, Alexander Duyck <alexander.duyck@...il.com>,
	Herbert Xu <herbert@...dor.apana.org.au>,
	Eric Dumazet <eric.dumazet@...il.com>,
	Jiří Pírko <jiri@...nulli.us>,
	Alexei Starovoitov <alexei.starovoitov@...il.com>
Subject: Re: [net-next RFC 1/1] net sched actions: introduce timestamp for
 first time used

On Tue, May 17, 2016 at 4:38 PM, Jamal Hadi Salim <jhs@...atatu.com> wrote:
> diff --git a/net/sched/act_bpf.c b/net/sched/act_bpf.c
> index 014f9a6..f581e01 100644
> --- a/net/sched/act_bpf.c
> +++ b/net/sched/act_bpf.c
> @@ -156,6 +156,7 @@ static int tcf_bpf_dump(struct sk_buff *skb, struct tc_action *act,
>
>         tm.install = jiffies_to_clock_t(jiffies - prog->tcf_tm.install);
>         tm.lastuse = jiffies_to_clock_t(jiffies - prog->tcf_tm.lastuse);
> +       tm.firstuse = jiffies_to_clock_t(jiffies - prog->tcf_tm.firstuse);
>         tm.expires = jiffies_to_clock_t(prog->tcf_tm.expires);


I think it is the time to add a wrapper for these tm.XX =
jiffies_to_clock_t(XXX).