[PATCH RFC net-next 4/6] sock: permit SO_ZEROCOPY on PF_RDS socket
From: Sowmini Varadhan <hidden>
Date: 2018-01-17 12:37:20
Subsystem:
networking [general], networking [sockets], the rest · Maintainers:
"David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Kuniyuki Iwashima, Willem de Bruijn, Linus Torvalds
allow the application to set SO_ZEROCOPY on the underlying sk of a PF_RDS socket Signed-off-by: Sowmini Varadhan <redacted> --- net/core/sock.c | 7 +++++++ 1 files changed, 7 insertions(+), 0 deletions(-)
diff --git a/net/core/sock.c b/net/core/sock.c
index 4f52677..f0f44b0 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c@@ -1049,6 +1049,13 @@ int sock_setsockopt(struct socket *sock, int level, int optname, break; case SO_ZEROCOPY: + if (sk->sk_family == PF_RDS) { + if (val < 0 || val > 1) + ret = -EINVAL; + else + sock_valbool_flag(sk, SOCK_ZEROCOPY, valbool); + break; + } if (sk->sk_family != PF_INET && sk->sk_family != PF_INET6) ret = -ENOTSUPP; else if (sk->sk_protocol != IPPROTO_TCP)
--
1.7.1