diff options
| author | Eric Dumazet <edumazet@google.com> | 2014-09-29 22:29:15 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-10-01 22:34:25 +0200 |
| commit | d0bf4a9e92b9a93ffeeacbd7b6cb83e0ee3dc2ef (patch) | |
| tree | 1ba29128caa07307632b6219c1692308ec89983a /net/ipv4 | |
| parent | tcp: abort orphan sockets stalling on zero window probes (diff) | |
| download | linux-d0bf4a9e92b9a93ffeeacbd7b6cb83e0ee3dc2ef.tar.xz linux-d0bf4a9e92b9a93ffeeacbd7b6cb83e0ee3dc2ef.zip | |
net: cleanup and document skb fclone layout
Lets use a proper structure to clearly document and implement
skb fast clones.
Then, we might experiment more easily alternative layouts.
This patch adds a new skb_fclone_busy() helper, used by tcp and xfrm,
to stop leaking of implementation details.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4')
| -rw-r--r-- | net/ipv4/tcp_output.c | 5 |
1 files changed, 1 insertions, 4 deletions
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c index ee567e9e98c3..8d4eac793700 100644 --- a/net/ipv4/tcp_output.c +++ b/net/ipv4/tcp_output.c @@ -2110,10 +2110,7 @@ bool tcp_schedule_loss_probe(struct sock *sk) static bool skb_still_in_host_queue(const struct sock *sk, const struct sk_buff *skb) { - const struct sk_buff *fclone = skb + 1; - - if (unlikely(skb->fclone == SKB_FCLONE_ORIG && - fclone->fclone == SKB_FCLONE_CLONE)) { + if (unlikely(skb_fclone_busy(skb))) { NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_TCPSPURIOUS_RTX_HOSTQUEUES); return true; |