diff options
| 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 /include | |
| parent | uapi: wrap compiler_types.h in an ifdef instead of the implicit strip (diff) | |
| download | linux-f86f42ed2c471da5b061492bb8ab1d3d73c19c58.tar.gz linux-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 'include')
| -rw-r--r-- | include/net/sock.h | 17 | ||||
| -rw-r--r-- | include/net/tcp.h | 2 |
2 files changed, 17 insertions, 2 deletions
diff --git a/include/net/sock.h b/include/net/sock.h index 63a6a48afb48..34d7029eb622 100644 --- a/include/net/sock.h +++ b/include/net/sock.h @@ -2682,11 +2682,26 @@ struct sock_skb_cb { #define sock_skb_cb_check_size(size) \ BUILD_BUG_ON((size) > SOCK_SKB_CB_OFFSET) +static inline void sk_drops_inc(struct sock *sk) +{ + atomic_inc(&sk->sk_drops); +} + +static inline int sk_drops_read(const struct sock *sk) +{ + return atomic_read(&sk->sk_drops); +} + +static inline void sk_drops_reset(struct sock *sk) +{ + atomic_set(&sk->sk_drops, 0); +} + static inline void sock_skb_set_dropcount(const struct sock *sk, struct sk_buff *skb) { SOCK_SKB_CB(skb)->dropcount = sock_flag(sk, SOCK_RXQ_OVFL) ? - atomic_read(&sk->sk_drops) : 0; + sk_drops_read(sk) : 0; } static inline void sk_drops_add(struct sock *sk, const struct sk_buff *skb) diff --git a/include/net/tcp.h b/include/net/tcp.h index 2936b8175950..16dc9cebb9d2 100644 --- a/include/net/tcp.h +++ b/include/net/tcp.h @@ -2612,7 +2612,7 @@ static inline void tcp_segs_in(struct tcp_sock *tp, const struct sk_buff *skb) */ static inline void tcp_listendrop(const struct sock *sk) { - atomic_inc(&((struct sock *)sk)->sk_drops); + sk_drops_inc((struct sock *)sk); __NET_INC_STATS(sock_net(sk), LINUX_MIB_LISTENDROPS); } |