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net: rename local_df to ignore_df

Browse source 
As suggested by several people, rename local_df to ignore_df,
since it means "ignore df bit if it is set".

Cc: Maciej Żenczykowski <[email protected]>
Cc: Florian Westphal <[email protected]>
Cc: David S. Miller <[email protected]>
Cc: Eric Dumazet <[email protected]>
Signed-off-by: Cong Wang <[email protected]>
Acked-by: Maciej Żenczykowski <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
WANG Cong 2014-05-04 16:39:18 -07:00 • committed by David S. Miller
commit 60ff746739
17 changed files with 42 additions and 42 deletions
Download patch file Download diff file Expand all files Collapse all files

12
net/ipv6/ip6_output.c
View file

@ -219,7 +219,7 @@ int ip6_xmit(struct sock *sk, struct sk_buff *skb, struct flowi6 *fl6,
skb->mark = sk->sk_mark;
mtu = dst_mtu(dst);
if ((skb->len <= mtu) || skb->local_df || skb_is_gso(skb)) {
if ((skb->len <= mtu) || skb->ignore_df || skb_is_gso(skb)) {
IP6_UPD_PO_STATS(net, ip6_dst_idev(skb_dst(skb)),
IPSTATS_MIB_OUT, skb->len);
return NF_HOOK(NFPROTO_IPV6, NF_INET_LOCAL_OUT, skb, NULL,
@ -347,11 +347,11 @@ static bool ip6_pkt_too_big(const struct sk_buff *skb, unsigned int mtu)
if (skb->len <= mtu)
return false;
/* ipv6 conntrack defrag sets max_frag_size + local_df */
/* ipv6 conntrack defrag sets max_frag_size + ignore_df */
if (IP6CB(skb)->frag_max_size && IP6CB(skb)->frag_max_size > mtu)
return true;
if (skb->local_df)
if (skb->ignore_df)
return false;
if (skb_is_gso(skb) && skb_gso_network_seglen(skb) <= mtu)
@ -559,7 +559,7 @@ int ip6_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *))
/* We must not fragment if the socket is set to force MTU discovery
* or if the skb it not generated by a local socket.
*/
if (unlikely(!skb->local_df && skb->len > mtu) ||
if (unlikely(!skb->ignore_df && skb->len > mtu) ||
(IP6CB(skb)->frag_max_size &&
IP6CB(skb)->frag_max_size > mtu)) {
if (skb->sk && dst_allfrag(skb_dst(skb)))
@ -1234,7 +1234,7 @@ int ip6_append_data(struct sock *sk, int getfrag(void *from, char *to,
sizeof(struct frag_hdr) : 0) +
rt->rt6i_nfheader_len;
if (ip6_sk_local_df(sk))
if (ip6_sk_ignore_df(sk))
maxnonfragsize = sizeof(struct ipv6hdr) + IPV6_MAXPLEN;
else
maxnonfragsize = mtu;
@ -1544,7 +1544,7 @@ int ip6_push_pending_frames(struct sock *sk)
}
/* Allow local fragmentation. */
skb->local_df = ip6_sk_local_df(sk);
skb->ignore_df = ip6_sk_ignore_df(sk);
*final_dst = fl6->daddr;
__skb_pull(skb, skb_network_header_len(skb));

2
net/ipv6/netfilter/nf_conntrack_reasm.c
View file

@ -451,7 +451,7 @@ nf_ct_frag6_reasm(struct frag_queue *fq, struct net_device *dev)
}
sub_frag_mem_limit(&fq->q, head->truesize);
head->local_df = 1;
head->ignore_df = 1;
head->next = NULL;
head->dev = dev;
head->tstamp = fq->q.stamp;

6
net/ipv6/xfrm6_output.c
View file

@ -78,7 +78,7 @@ static int xfrm6_tunnel_check_size(struct sk_buff *skb)
if (mtu < IPV6_MIN_MTU)
mtu = IPV6_MIN_MTU;
if (!skb->local_df && skb->len > mtu) {
if (!skb->ignore_df && skb->len > mtu) {
skb->dev = dst->dev;
if (xfrm6_local_dontfrag(skb))
@ -120,7 +120,7 @@ int xfrm6_prepare_output(struct xfrm_state *x, struct sk_buff *skb)
#endif
skb->protocol = htons(ETH_P_IPV6);
skb->local_df = 1;
skb->ignore_df = 1;
return x->outer_mode->output2(x, skb);
}
@ -150,7 +150,7 @@ static int __xfrm6_output(struct sk_buff *skb)
if (skb->len > mtu && xfrm6_local_dontfrag(skb)) {
xfrm6_local_rxpmtu(skb, mtu);
return -EMSGSIZE;
} else if (!skb->local_df && skb->len > mtu && skb->sk) {
} else if (!skb->ignore_df && skb->len > mtu && skb->sk) {
xfrm_local_error(skb, mtu);
return -EMSGSIZE;
}