[PATCH net-next V2 07/11] tuntap: move XDP flushing out of tun_do_xdp()
From: Jason Wang <jasowang@redhat.com>
Date: 2018-09-12 03:17:57
Also in:
kvm, lkml
Subsystem:
networking drivers, the rest, tun/tap driver · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds, Willem de Bruijn, Jason Wang
This will allow adding batch flushing on top. Signed-off-by: Jason Wang <jasowang@redhat.com> --- drivers/net/tun.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index 14fe94098180..3ae539374f6b 100644
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c@@ -1660,7 +1660,6 @@ static int tun_xdp_act(struct tun_struct *tun, struct bpf_prog *xdp_prog, switch (act) { case XDP_REDIRECT: err = xdp_do_redirect(tun->dev, xdp, xdp_prog); - xdp_do_flush_map(); if (err) return err; break;
@@ -1749,6 +1748,8 @@ static struct sk_buff *tun_build_skb(struct tun_struct *tun, err = tun_xdp_act(tun, xdp_prog, &xdp, act); if (err < 0) goto err_xdp; + if (err == XDP_REDIRECT) + xdp_do_flush_map(); if (err != XDP_PASS) goto out;
--
2.17.1