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| author | Eric Dumazet <edumazet@google.com> | 2025-08-26 12:50:27 +0000 |
|---|---|---|
| committer | Paolo Abeni <pabeni@redhat.com> | 2025-08-28 13:14:50 +0200 |
| commit | f86f42ed2c471da5b061492bb8ab1d3d73c19c58 (patch) | |
| tree | d4553a721e7fcd2904046c2a79774cc3b11517ee /net/ipv6 | |
| parent | c2a756891bb428104fa8899998ba277042274cdb (diff) | |
| download | linux-next-f86f42ed2c471da5b061492bb8ab1d3d73c19c58.tar.gz linux-next-f86f42ed2c471da5b061492bb8ab1d3d73c19c58.zip | |
net: add sk_drops_read(), sk_drops_inc() and sk_drops_reset() helpers
We want to split sk->sk_drops in the future to reduce
potential contention on this field.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com>
Link: https://patch.msgid.link/20250826125031.1578842-2-edumazet@google.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Diffstat (limited to 'net/ipv6')
| -rw-r--r-- | net/ipv6/datagram.c | 2 | ||||
| -rw-r--r-- | net/ipv6/raw.c | 8 | ||||
| -rw-r--r-- | net/ipv6/udp.c | 6 |
3 files changed, 8 insertions, 8 deletions
diff --git a/net/ipv6/datagram.c b/net/ipv6/datagram.c index 972bf0426d59..33ebe93d80e3 100644 --- a/net/ipv6/datagram.c +++ b/net/ipv6/datagram.c @@ -1068,5 +1068,5 @@ void __ip6_dgram_sock_seq_show(struct seq_file *seq, struct sock *sp, 0, sock_i_ino(sp), refcount_read(&sp->sk_refcnt), sp, - atomic_read(&sp->sk_drops)); + sk_drops_read(sp)); } diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c index 4c3f8245c40f..4026192143ec 100644 --- a/net/ipv6/raw.c +++ b/net/ipv6/raw.c @@ -163,7 +163,7 @@ static bool ipv6_raw_deliver(struct sk_buff *skb, int nexthdr) if (atomic_read(&sk->sk_rmem_alloc) >= READ_ONCE(sk->sk_rcvbuf)) { - atomic_inc(&sk->sk_drops); + sk_drops_inc(sk); continue; } @@ -361,7 +361,7 @@ static inline int rawv6_rcv_skb(struct sock *sk, struct sk_buff *skb) if ((raw6_sk(sk)->checksum || rcu_access_pointer(sk->sk_filter)) && skb_checksum_complete(skb)) { - atomic_inc(&sk->sk_drops); + sk_drops_inc(sk); sk_skb_reason_drop(sk, skb, SKB_DROP_REASON_SKB_CSUM); return NET_RX_DROP; } @@ -389,7 +389,7 @@ int rawv6_rcv(struct sock *sk, struct sk_buff *skb) struct raw6_sock *rp = raw6_sk(sk); if (!xfrm6_policy_check(sk, XFRM_POLICY_IN, skb)) { - atomic_inc(&sk->sk_drops); + sk_drops_inc(sk); sk_skb_reason_drop(sk, skb, SKB_DROP_REASON_XFRM_POLICY); return NET_RX_DROP; } @@ -414,7 +414,7 @@ int rawv6_rcv(struct sock *sk, struct sk_buff *skb) if (inet_test_bit(HDRINCL, sk)) { if (skb_checksum_complete(skb)) { - atomic_inc(&sk->sk_drops); + sk_drops_inc(sk); sk_skb_reason_drop(sk, skb, SKB_DROP_REASON_SKB_CSUM); return NET_RX_DROP; } diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c index 6a68f77da44b..a35ee6d693a8 100644 --- a/net/ipv6/udp.c +++ b/net/ipv6/udp.c @@ -524,7 +524,7 @@ try_again: } if (unlikely(err)) { if (!peeking) { - atomic_inc(&sk->sk_drops); + sk_drops_inc(sk); SNMP_INC_STATS(mib, UDP_MIB_INERRORS); } kfree_skb(skb); @@ -908,7 +908,7 @@ csum_error: __UDP6_INC_STATS(sock_net(sk), UDP_MIB_CSUMERRORS, is_udplite); drop: __UDP6_INC_STATS(sock_net(sk), UDP_MIB_INERRORS, is_udplite); - atomic_inc(&sk->sk_drops); + sk_drops_inc(sk); sk_skb_reason_drop(sk, skb, drop_reason); return -1; } @@ -1013,7 +1013,7 @@ start_lookup: } nskb = skb_clone(skb, GFP_ATOMIC); if (unlikely(!nskb)) { - atomic_inc(&sk->sk_drops); + sk_drops_inc(sk); __UDP6_INC_STATS(net, UDP_MIB_RCVBUFERRORS, IS_UDPLITE(sk)); __UDP6_INC_STATS(net, UDP_MIB_INERRORS, |