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tcp: skb_mstamp_after helper

a helper to prepare the first main RACK patch.

Signed-off-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Yuchung Cheng 2015-10-16 21:57:45 -07:00 committed by David S. Miller
parent 77c631273d
commit 625a5e109a

View File

@ -463,6 +463,15 @@ static inline u32 skb_mstamp_us_delta(const struct skb_mstamp *t1,
return delta_us;
}
static inline bool skb_mstamp_after(const struct skb_mstamp *t1,
const struct skb_mstamp *t0)
{
s32 diff = t1->stamp_jiffies - t0->stamp_jiffies;
if (!diff)
diff = t1->stamp_us - t0->stamp_us;
return diff > 0;
}
/**
* struct sk_buff - socket buffer