diff options
| author | Martin KaFai Lau | 2022-03-02 11:55:50 -0800 |
|---|---|---|
| committer | David S. Miller | 2022-03-03 14:38:48 +0000 |
| commit | d98d58a002619b5c165f1eedcd731e2fe2c19088 (patch) | |
| tree | be1104cfd2c72c090a9a131b38c41915ce28abaf /net/ipv4 | |
| parent | d93376f503c7a586707925957592c0f16f4db0b1 (diff) | |
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 'net/ipv4')
| -rw-r--r-- | net/ipv4/ip_output.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c index a9588e0c82c5..00b4bf26fd93 100644 --- a/net/ipv4/ip_output.c +++ b/net/ipv4/ip_output.c @@ -1728,8 +1728,7 @@ void ip_send_unicast_reply(struct sock *sk, struct sk_buff *skb, arg->csumoffset) = csum_fold(csum_add(nskb->csum, arg->csum)); nskb->ip_summed = CHECKSUM_NONE; - /* Setting mono_delivery_time will be enabled later */ - nskb->mono_delivery_time = 0; + nskb->mono_delivery_time = !!transmit_time; ip_push_pending_frames(sk, &fl4); } out: |