diff options
| author |   Akhmat Karakotov <hmukos@yandex-team.ru> | 2022-01-31 16:31:21 +0300 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2022-01-31 15:05:24 +0000 |
| commit | e187013abeb4c2a7ec8a4bb978844c7e92a1a6ec (patch) | |
| tree | f5514fabb36ce2897eeb1db3f6f8d6f7d0357d64 /include/net/sock.h | |
| parent | selftests/net: timestamping: Fix bind_phc check (diff) | |
| download | linux-dev-e187013abeb4c2a7ec8a4bb978844c7e92a1a6ec.tar.xz linux-dev-e187013abeb4c2a7ec8a4bb978844c7e92a1a6ec.zip | |
txhash: Make rethinking txhash behavior configurable via sysctl
Add a per ns sysctl that controls the txhash rethink behavior:
net.core.txrehash. When enabled, the same behavior is retained,
when disabled, rethink is not performed. Sysctl is enabled by default.
Signed-off-by: Akhmat Karakotov <hmukos@yandex-team.ru>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/sock.h')
| -rw-r--r-- | include/net/sock.h | 34 |
1 files changed, 21 insertions, 13 deletions
diff --git a/include/net/sock.h b/include/net/sock.h index ff9b508d9c5f..0540e1b2aeb0 100644 --- a/include/net/sock.h +++ b/include/net/sock.h @@ -587,6 +587,18 @@ static inline bool sk_user_data_is_nocopy(const struct sock *sk) __tmp | SK_USER_DATA_NOCOPY); \ }) +static inline +struct net *sock_net(const struct sock *sk) +{ + return read_pnet(&sk->sk_net); +} + +static inline +void sock_net_set(struct sock *sk, struct net *net) +{ + write_pnet(&sk->sk_net, net); +} + /* * SK_CAN_REUSE and SK_NO_REUSE on a socket mean that the socket is OK * or not whether his port will be reused by someone else. SK_FORCE_REUSE @@ -2054,10 +2066,18 @@ static inline void sk_set_txhash(struct sock *sk) static inline bool sk_rethink_txhash(struct sock *sk) { - if (sk->sk_txhash) { + u8 rehash; + + if (!sk->sk_txhash) + return false; + + rehash = READ_ONCE(sock_net(sk)->core.sysctl_txrehash); + + if (rehash) { sk_set_txhash(sk); return true; } + return false; } @@ -2704,18 +2724,6 @@ static inline void sk_eat_skb(struct sock *sk, struct sk_buff *skb) __kfree_skb(skb); } -static inline -struct net *sock_net(const struct sock *sk) -{ - return read_pnet(&sk->sk_net); -} - -static inline -void sock_net_set(struct sock *sk, struct net *net) -{ - write_pnet(&sk->sk_net, net); -} - static inline bool skb_sk_is_prefetched(struct sk_buff *skb) { |