diff options
| author | Martin KaFai Lau <kafai@fb.com> | 2022-03-02 22:55:50 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2022-03-03 17:38:48 +0300 |
| commit | d98d58a002619b5c165f1eedcd731e2fe2c19088 (patch) | |
| tree | be1104cfd2c72c090a9a131b38c41915ce28abaf /include | |
| parent | d93376f503c7a586707925957592c0f16f4db0b1 (diff) | |
| download | linux-d98d58a002619b5c165f1eedcd731e2fe2c19088.tar.xz | |
net: Set skb->mono_delivery_time and clear it after sch_handle_ingress()
The previous patches handled the delivery_time before sch_handle_ingress().
This patch can now set the skb->mono_delivery_time to flag the skb->tstamp
is used as the mono delivery_time (EDT) instead of the (rcv) timestamp
and also clear it with skb_clear_delivery_time() after
sch_handle_ingress(). This will make the bpf_redirect_*()
to keep the mono delivery_time and used by a qdisc (fq) of
the egress-ing interface.
A latter patch will postpone the skb_clear_delivery_time() until the
stack learns that the skb is being delivered locally and that will
make other kernel forwarding paths (ip[6]_forward) able to keep
the delivery_time also. Thus, like the previous patches on using
the skb->mono_delivery_time bit, calling skb_clear_delivery_time()
is not limited within the CONFIG_NET_INGRESS to avoid too many code
churns among this set.
Signed-off-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/skbuff.h | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index 8e8a4af4f9e2..0f5fd53059cd 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -3993,8 +3993,7 @@ static inline void skb_set_delivery_time(struct sk_buff *skb, ktime_t kt, bool mono) { skb->tstamp = kt; - /* Setting mono_delivery_time will be enabled later */ - skb->mono_delivery_time = 0; + skb->mono_delivery_time = kt && mono; } DECLARE_STATIC_KEY_FALSE(netstamp_needed_key); |