diff options
| author |   Haishuang Yan <yanhaishuang@cmss.chinamobile.com> | 2016-12-28 17:52:32 +0800 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2016-12-29 11:38:31 -0500 |
| commit | 1946e672c173559155a3e210fe95dbf8b7b8ddf7 (patch) | |
| tree | 0d794dc28150aac130c2e6dd0024cb3a4a5ec594 /net/ipv4/tcp_minisocks.c | |
| parent | net: Use kmemdup instead of kmalloc and memcpy (diff) | |
| download | linux-dev-1946e672c173559155a3e210fe95dbf8b7b8ddf7.tar.xz linux-dev-1946e672c173559155a3e210fe95dbf8b7b8ddf7.zip | |
ipv4: Namespaceify tcp_tw_recycle and tcp_max_tw_buckets knob
Different namespace application might require fast recycling
TIME-WAIT sockets independently of the host.
Signed-off-by: Haishuang Yan <yanhaishuang@cmss.chinamobile.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/tcp_minisocks.c')
| -rw-r--r-- | net/ipv4/tcp_minisocks.c | 14 |
1 files changed, 5 insertions, 9 deletions
diff --git a/net/ipv4/tcp_minisocks.c b/net/ipv4/tcp_minisocks.c index 28ce5ee831f5..06fde26a82b7 100644 --- a/net/ipv4/tcp_minisocks.c +++ b/net/ipv4/tcp_minisocks.c @@ -29,12 +29,6 @@ int sysctl_tcp_abort_on_overflow __read_mostly; -struct inet_timewait_death_row tcp_death_row = { - .sysctl_max_tw_buckets = NR_FILE * 2, - .hashinfo = &tcp_hashinfo, -}; -EXPORT_SYMBOL_GPL(tcp_death_row); - static bool tcp_in_window(u32 seq, u32 end_seq, u32 s_win, u32 e_win) { if (seq == s_win) @@ -100,6 +94,7 @@ tcp_timewait_state_process(struct inet_timewait_sock *tw, struct sk_buff *skb, struct tcp_options_received tmp_opt; struct tcp_timewait_sock *tcptw = tcp_twsk((struct sock *)tw); bool paws_reject = false; + struct inet_timewait_death_row *tcp_death_row = &sock_net((struct sock*)tw)->ipv4.tcp_death_row; tmp_opt.saw_tstamp = 0; if (th->doff > (sizeof(*th) >> 2) && tcptw->tw_ts_recent_stamp) { @@ -153,7 +148,7 @@ tcp_timewait_state_process(struct inet_timewait_sock *tw, struct sk_buff *skb, tcptw->tw_ts_recent = tmp_opt.rcv_tsval; } - if (tcp_death_row.sysctl_tw_recycle && + if (tcp_death_row->sysctl_tw_recycle && tcptw->tw_ts_recent_stamp && tcp_tw_remember_stamp(tw)) inet_twsk_reschedule(tw, tw->tw_timeout); @@ -264,11 +259,12 @@ void tcp_time_wait(struct sock *sk, int state, int timeo) const struct tcp_sock *tp = tcp_sk(sk); struct inet_timewait_sock *tw; bool recycle_ok = false; + struct inet_timewait_death_row *tcp_death_row = &sock_net(sk)->ipv4.tcp_death_row; - if (tcp_death_row.sysctl_tw_recycle && tp->rx_opt.ts_recent_stamp) + if (tcp_death_row->sysctl_tw_recycle && tp->rx_opt.ts_recent_stamp) recycle_ok = tcp_remember_stamp(sk); - tw = inet_twsk_alloc(sk, &tcp_death_row, state); + tw = inet_twsk_alloc(sk, tcp_death_row, state); if (tw) { struct tcp_timewait_sock *tcptw = tcp_twsk((struct sock *)tw); |