diff options
author | Mark Brown <broonie@kernel.org> | 2014-10-09 18:02:47 +0100 |
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committer | Mark Brown <broonie@kernel.org> | 2014-10-09 18:02:47 +0100 |
commit | 2606d2448703e8995ca39a59d8a1106a1e0f034a (patch) | |
tree | 588f1b850a7e13d0e2f3461d66909db55c7531fb /net/ipv6/ip6_output.c | |
parent | 8bb495e3f02401ee6f76d1b1d77f3ac9f079e376 (diff) | |
parent | b8a669d29702a8fb529f4fae450a86b8676b0e42 (diff) |
Merge tag 'kvm-for-lsk-v3.10-v1' of git://git.linaro.org/people/christoffer.dall/linux-kvm-arm into lsk-v3.10-kvmv3.10/topic/kvm
KVM/ARM/arm64 Support for LSK v3.10
Diffstat (limited to 'net/ipv6/ip6_output.c')
-rw-r--r-- | net/ipv6/ip6_output.c | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c index d5d20cde8d92..6e3ddf806ec2 100644 --- a/net/ipv6/ip6_output.c +++ b/net/ipv6/ip6_output.c @@ -1098,11 +1098,12 @@ static inline struct ipv6_rt_hdr *ip6_rthdr_dup(struct ipv6_rt_hdr *src, return src ? kmemdup(src, (src->hdrlen + 1) * 8, gfp) : NULL; } -static void ip6_append_data_mtu(int *mtu, +static void ip6_append_data_mtu(unsigned int *mtu, int *maxfraglen, unsigned int fragheaderlen, struct sk_buff *skb, - struct rt6_info *rt) + struct rt6_info *rt, + bool pmtuprobe) { if (!(rt->dst.flags & DST_XFRM_TUNNEL)) { if (skb == NULL) { @@ -1114,7 +1115,9 @@ static void ip6_append_data_mtu(int *mtu, * this fragment is not first, the headers * space is regarded as data space. */ - *mtu = dst_mtu(rt->dst.path); + *mtu = min(*mtu, pmtuprobe ? + rt->dst.dev->mtu : + dst_mtu(rt->dst.path)); } *maxfraglen = ((*mtu - fragheaderlen) & ~7) + fragheaderlen - sizeof(struct frag_hdr); @@ -1131,11 +1134,10 @@ int ip6_append_data(struct sock *sk, int getfrag(void *from, char *to, struct ipv6_pinfo *np = inet6_sk(sk); struct inet_cork *cork; struct sk_buff *skb, *skb_prev = NULL; - unsigned int maxfraglen, fragheaderlen; + unsigned int maxfraglen, fragheaderlen, mtu; int exthdrlen; int dst_exthdrlen; int hh_len; - int mtu; int copy; int err; int offset = 0; @@ -1292,7 +1294,9 @@ alloc_new_skb: /* update mtu and maxfraglen if necessary */ if (skb == NULL || skb_prev == NULL) ip6_append_data_mtu(&mtu, &maxfraglen, - fragheaderlen, skb, rt); + fragheaderlen, skb, rt, + np->pmtudisc == + IPV6_PMTUDISC_PROBE); skb_prev = skb; |