diff options
| author |   Eric Dumazet <edumazet@google.com> | 2019-02-26 09:49:11 -0800 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2019-02-26 13:16:03 -0800 |
| commit | 921f9a0f2e8c326bfcdde7a59be0bac801a3d588 (patch) | |
| tree | 590ede430a2a25ca46c5e171b4f74a6c203fbc6f /net/ipv4 | |
| parent | tcp: get rid of __tcp_add_write_queue_tail() (diff) | |
| download | linux-dev-921f9a0f2e8c326bfcdde7a59be0bac801a3d588.tar.xz linux-dev-921f9a0f2e8c326bfcdde7a59be0bac801a3d588.zip | |
tcp: convert tcp_md5_needed to static_branch API
We prefer static_branch_unlikely() over static_key_false() these days.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4')
| -rw-r--r-- | net/ipv4/tcp.c | 2 | ||||
| -rw-r--r-- | net/ipv4/tcp_ipv4.c | 2 | ||||
| -rw-r--r-- | net/ipv4/tcp_output.c | 4 |
3 files changed, 4 insertions, 4 deletions
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index e2fa6eb9f81a..ad07dd71063d 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -3699,7 +3699,7 @@ bool tcp_alloc_md5sig_pool(void) if (!tcp_md5sig_pool_populated) { __tcp_alloc_md5sig_pool(); if (tcp_md5sig_pool_populated) - static_key_slow_inc(&tcp_md5_needed); + static_branch_inc(&tcp_md5_needed); } mutex_unlock(&tcp_md5sig_mutex); diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c index 4010ae3644f3..831d844a27ca 100644 --- a/net/ipv4/tcp_ipv4.c +++ b/net/ipv4/tcp_ipv4.c @@ -973,7 +973,7 @@ static void tcp_v4_reqsk_destructor(struct request_sock *req) * We need to maintain these in the sk structure. */ -struct static_key tcp_md5_needed __read_mostly; +DEFINE_STATIC_KEY_FALSE(tcp_md5_needed); EXPORT_SYMBOL(tcp_md5_needed); /* Find the Key structure for an address. */ diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c index e72aa0ff5785..91f5cc5a3f88 100644 --- a/net/ipv4/tcp_output.c +++ b/net/ipv4/tcp_output.c @@ -597,7 +597,7 @@ static unsigned int tcp_syn_options(struct sock *sk, struct sk_buff *skb, *md5 = NULL; #ifdef CONFIG_TCP_MD5SIG - if (static_key_false(&tcp_md5_needed) && + if (static_branch_unlikely(&tcp_md5_needed) && rcu_access_pointer(tp->md5sig_info)) { *md5 = tp->af_specific->md5_lookup(sk, sk); if (*md5) { @@ -734,7 +734,7 @@ static unsigned int tcp_established_options(struct sock *sk, struct sk_buff *skb *md5 = NULL; #ifdef CONFIG_TCP_MD5SIG - if (static_key_false(&tcp_md5_needed) && + if (static_branch_unlikely(&tcp_md5_needed) && rcu_access_pointer(tp->md5sig_info)) { *md5 = tp->af_specific->md5_lookup(sk, sk); if (*md5) { |