diff options
| author |   wenxu <wenxu@ucloud.cn> | 2019-02-23 21:32:54 +0800 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2019-02-24 22:13:49 -0800 |
| commit | 3d25eabbbf6717bc0465754a66d6ebe51d5faa54 (patch) | |
| tree | 79bf3fe040622c6c3ea21790fd4fb27127164fca /net/core/lwtunnel.c | |
| parent | tls: Return type of non-data records retrieved using MSG_PEEK in recvmsg (diff) | |
| download | linux-dev-3d25eabbbf6717bc0465754a66d6ebe51d5faa54.tar.xz linux-dev-3d25eabbbf6717bc0465754a66d6ebe51d5faa54.zip | |
ip_tunnel: Add dst_cache support in lwtunnel_state of ip tunnel
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>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core/lwtunnel.c')
| -rw-r--r-- | net/core/lwtunnel.c | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/net/core/lwtunnel.c b/net/core/lwtunnel.c index 0b171756453c..19b557bd294b 100644 --- a/net/core/lwtunnel.c +++ b/net/core/lwtunnel.c @@ -122,18 +122,18 @@ int lwtunnel_build_state(u16 encap_type, ret = -EOPNOTSUPP; rcu_read_lock(); ops = rcu_dereference(lwtun_encaps[encap_type]); - if (likely(ops && ops->build_state && try_module_get(ops->owner))) { + if (likely(ops && ops->build_state && try_module_get(ops->owner))) found = true; + rcu_read_unlock(); + + if (found) { ret = ops->build_state(encap, family, cfg, lws, extack); if (ret) module_put(ops->owner); - } - rcu_read_unlock(); - - /* don't rely on -EOPNOTSUPP to detect match as build_state - * handlers could return it - */ - if (!found) { + } else { + /* don't rely on -EOPNOTSUPP to detect match as build_state + * handlers could return it + */ NL_SET_ERR_MSG_ATTR(extack, encap, "LWT encapsulation type not supported"); } |