From d3cd4924e3853aa771c3acf6f3ea3fb2cccdfadd Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Fri, 13 Nov 2020 07:08:08 -0800 Subject: tcp: uninline tcp_stream_memory_free() Both IPv4 and IPv6 needs it via a function pointer. Following patch will avoid the indirect call. Signed-off-by: Eric Dumazet Signed-off-by: Jakub Kicinski --- include/net/tcp.h | 13 +------------ 1 file changed, 1 insertion(+), 12 deletions(-) (limited to 'include') diff --git a/include/net/tcp.h b/include/net/tcp.h index 4aba0f069b05..d643ee4e4249 100644 --- a/include/net/tcp.h +++ b/include/net/tcp.h @@ -1965,18 +1965,7 @@ static inline u32 tcp_notsent_lowat(const struct tcp_sock *tp) return tp->notsent_lowat ?: net->ipv4.sysctl_tcp_notsent_lowat; } -/* @wake is one when sk_stream_write_space() calls us. - * This sends EPOLLOUT only if notsent_bytes is half the limit. - * This mimics the strategy used in sock_def_write_space(). - */ -static inline bool tcp_stream_memory_free(const struct sock *sk, int wake) -{ - const struct tcp_sock *tp = tcp_sk(sk); - u32 notsent_bytes = READ_ONCE(tp->write_seq) - - READ_ONCE(tp->snd_nxt); - - return (notsent_bytes << wake) < tcp_notsent_lowat(tp); -} +bool tcp_stream_memory_free(const struct sock *sk, int wake); #ifdef CONFIG_PROC_FS int tcp4_proc_init(void); -- cgit v1.2.3