diff options
| author |   Eric Dumazet <edumazet@google.com> | 2022-01-24 12:24:53 -0800 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2022-01-25 11:25:21 +0000 |
| commit | 27dd35e02235902933626469a1c9198612d72564 (patch) | |
| tree | eb4ce5c37562915bc8032b5477fa1d52b38701ec /net/ipv4/inet_timewait_sock.c | |
| parent | tcp/dccp: add tw->tw_bslot (diff) | |
| download | wireguard-linux-27dd35e02235902933626469a1c9198612d72564.tar.xz wireguard-linux-27dd35e02235902933626469a1c9198612d72564.zip | |
tcp/dccp: no longer use twsk_net(tw) from tw_timer_handler()
We will soon get rid of inet_twsk_purge().
This means that tw_timer_handler() might fire after
a netns has been dismantled/freed.
Instead of adding a function (and data structure) to find a netns
from tw->tw_net_cookie, just update the SNMP counters
a bit earlier, when the netns is known to be alive.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/inet_timewait_sock.c')
| -rw-r--r-- | net/ipv4/inet_timewait_sock.c | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/net/ipv4/inet_timewait_sock.c b/net/ipv4/inet_timewait_sock.c index 6e8f4a6cd222..e37e4852711c 100644 --- a/net/ipv4/inet_timewait_sock.c +++ b/net/ipv4/inet_timewait_sock.c @@ -148,10 +148,6 @@ static void tw_timer_handler(struct timer_list *t) { struct inet_timewait_sock *tw = from_timer(tw, t, tw_timer); - if (tw->tw_kill) - __NET_INC_STATS(twsk_net(tw), LINUX_MIB_TIMEWAITKILLED); - else - __NET_INC_STATS(twsk_net(tw), LINUX_MIB_TIMEWAITED); inet_twsk_kill(tw); } @@ -247,8 +243,11 @@ void __inet_twsk_schedule(struct inet_timewait_sock *tw, int timeo, bool rearm) * of PAWS. */ - tw->tw_kill = timeo <= 4*HZ; if (!rearm) { + bool kill = timeo <= 4*HZ; + + __NET_INC_STATS(twsk_net(tw), kill ? LINUX_MIB_TIMEWAITKILLED : + LINUX_MIB_TIMEWAITED); BUG_ON(mod_timer(&tw->tw_timer, jiffies + timeo)); atomic_inc(&tw->tw_dr->tw_count); } else { |