diff options
| author | Eric Dumazet <edumazet@google.com> | 2016-04-27 16:44:27 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-04-27 22:48:22 -0400 |
| commit | 6aef70a851ac77967992340faaff33f44598f60a (patch) | |
| tree | fe2e05554f7901d9ff1349b403e11d1e95874fbc /net/ipv6 | |
| parent | 2995aea5b68b6850e76aadd95be777cb36949e62 (diff) | |
net: snmp: kill various STATS_USER() helpers
In the old days (before linux-3.0), SNMP counters were duplicated,
one for user context, and one for BH context.
After commit 8f0ea0fe3a03 ("snmp: reduce percpu needs by 50%")
we have a single copy, and what really matters is preemption being
enabled or disabled, since we use this_cpu_inc() or __this_cpu_inc()
respectively.
We therefore kill SNMP_INC_STATS_USER(), SNMP_ADD_STATS_USER(),
NET_INC_STATS_USER(), NET_ADD_STATS_USER(), SCTP_INC_STATS_USER(),
SNMP_INC_STATS64_USER(), SNMP_ADD_STATS64_USER(), TCP_ADD_STATS_USER(),
UDP_INC_STATS_USER(), UDP6_INC_STATS_USER(), and XFRM_INC_STATS_USER()
Following patches will rename __BH helpers to make clear their
usage is not tied to BH being disabled.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6')
| -rw-r--r-- | net/ipv6/udp.c | 49 |
1 files changed, 24 insertions, 25 deletions
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c index 8d8b2cd8ec5b..baa56ca41a31 100644 --- a/net/ipv6/udp.c +++ b/net/ipv6/udp.c @@ -423,24 +423,22 @@ try_again: if (!peeked) { atomic_inc(&sk->sk_drops); if (is_udp4) - UDP_INC_STATS_USER(sock_net(sk), - UDP_MIB_INERRORS, - is_udplite); + UDP_INC_STATS(sock_net(sk), UDP_MIB_INERRORS, + is_udplite); else - UDP6_INC_STATS_USER(sock_net(sk), - UDP_MIB_INERRORS, - is_udplite); + UDP6_INC_STATS(sock_net(sk), UDP_MIB_INERRORS, + is_udplite); } skb_free_datagram_locked(sk, skb); return err; } if (!peeked) { if (is_udp4) - UDP_INC_STATS_USER(sock_net(sk), - UDP_MIB_INDATAGRAMS, is_udplite); + UDP_INC_STATS(sock_net(sk), UDP_MIB_INDATAGRAMS, + is_udplite); else - UDP6_INC_STATS_USER(sock_net(sk), - UDP_MIB_INDATAGRAMS, is_udplite); + UDP6_INC_STATS(sock_net(sk), UDP_MIB_INDATAGRAMS, + is_udplite); } sock_recv_ts_and_drops(msg, sk, skb); @@ -487,15 +485,15 @@ csum_copy_err: slow = lock_sock_fast(sk); if (!skb_kill_datagram(sk, skb, flags)) { if (is_udp4) { - UDP_INC_STATS_USER(sock_net(sk), - UDP_MIB_CSUMERRORS, is_udplite); - UDP_INC_STATS_USER(sock_net(sk), - UDP_MIB_INERRORS, is_udplite); + UDP_INC_STATS(sock_net(sk), + UDP_MIB_CSUMERRORS, is_udplite); + UDP_INC_STATS(sock_net(sk), + UDP_MIB_INERRORS, is_udplite); } else { - UDP6_INC_STATS_USER(sock_net(sk), - UDP_MIB_CSUMERRORS, is_udplite); - UDP6_INC_STATS_USER(sock_net(sk), - UDP_MIB_INERRORS, is_udplite); + UDP6_INC_STATS(sock_net(sk), + UDP_MIB_CSUMERRORS, is_udplite); + UDP6_INC_STATS(sock_net(sk), + UDP_MIB_INERRORS, is_udplite); } } unlock_sock_fast(sk, slow); @@ -1015,13 +1013,14 @@ send: err = ip6_send_skb(skb); if (err) { if (err == -ENOBUFS && !inet6_sk(sk)->recverr) { - UDP6_INC_STATS_USER(sock_net(sk), - UDP_MIB_SNDBUFERRORS, is_udplite); + UDP6_INC_STATS(sock_net(sk), + UDP_MIB_SNDBUFERRORS, is_udplite); err = 0; } - } else - UDP6_INC_STATS_USER(sock_net(sk), - UDP_MIB_OUTDATAGRAMS, is_udplite); + } else { + UDP6_INC_STATS(sock_net(sk), + UDP_MIB_OUTDATAGRAMS, is_udplite); + } return err; } @@ -1342,8 +1341,8 @@ out: * seems like overkill. */ if (err == -ENOBUFS || test_bit(SOCK_NOSPACE, &sk->sk_socket->flags)) { - UDP6_INC_STATS_USER(sock_net(sk), - UDP_MIB_SNDBUFERRORS, is_udplite); + UDP6_INC_STATS(sock_net(sk), + UDP_MIB_SNDBUFERRORS, is_udplite); } return err; |