From: wenxu@ucloud.cn
To: davem@davemloft.net, netdev@vger.kernel.org
Subject: [PATCH net-next v2] ip_tunnel: Add dst_cache management lwtunnel_state of ip tunnel
Date: Fri, 22 Feb 2019 11:00:01 +0800 [thread overview]
Message-ID: <1550804401-16232-1-git-send-email-wenxu@ucloud.cn> (raw)
From: wenxu <wenxu@ucloud.cn>
The lwtunnel_state is not init the dst_cache Which make the
ip_md_tunnel_xmit can't use the dst_cache. It will lookup
route table every packets.
Signed-off-by: wenxu <wenxu@ucloud.cn>
---
net/ipv4/ip_tunnel_core.c | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/net/ipv4/ip_tunnel_core.c b/net/ipv4/ip_tunnel_core.c
index 9a0e67b..f91ef7a 100644
--- a/net/ipv4/ip_tunnel_core.c
+++ b/net/ipv4/ip_tunnel_core.c
@@ -252,6 +252,12 @@ static int ip_tun_build_state(struct nlattr *attr,
tun_info = lwt_tun_info(new_state);
+ err = dst_cache_init(&tun_info->dst_cache, GFP_ATOMIC);
+ if (err) {
+ lwtstate_free(new_state);
+ return err;
+ }
+
if (tb[LWTUNNEL_IP_ID])
tun_info->key.tun_id = nla_get_be64(tb[LWTUNNEL_IP_ID]);
@@ -278,6 +284,13 @@ static int ip_tun_build_state(struct nlattr *attr,
return 0;
}
+static void ip_tun_destroy_state(struct lwtunnel_state *lwtstate)
+{
+ struct ip_tunnel_info *tun_info = lwt_tun_info(lwtstate);
+
+ dst_cache_destroy(&tun_info->dst_cache);
+}
+
static int ip_tun_fill_encap_info(struct sk_buff *skb,
struct lwtunnel_state *lwtstate)
{
@@ -313,6 +326,7 @@ static int ip_tun_cmp_encap(struct lwtunnel_state *a, struct lwtunnel_state *b)
static const struct lwtunnel_encap_ops ip_tun_lwt_ops = {
.build_state = ip_tun_build_state,
+ .destroy_state = ip_tun_destroy_state,
.fill_encap = ip_tun_fill_encap_info,
.get_encap_size = ip_tun_encap_nlsize,
.cmp_encap = ip_tun_cmp_encap,
--
1.8.3.1
next reply other threads:[~2019-02-22 3:00 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-22 3:00 wenxu [this message]
2019-02-22 3:39 ` [PATCH net-next v2] ip_tunnel: Add dst_cache management lwtunnel_state of ip tunnel David Ahern
2019-02-22 4:14 ` wenxu
2019-02-22 15:03 ` David Ahern
2019-02-22 15:21 ` wenxu
2019-02-22 22:16 ` David Ahern
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1550804401-16232-1-git-send-email-wenxu@ucloud.cn \
--to=wenxu@ucloud.cn \
--cc=davem@davemloft.net \
--cc=netdev@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).