[rds-devel] [PATCH RFC net-next 4/6] sock: permit SO_ZEROCOPY on PF_RDS socket
Sowmini Varadhan
sowmini.varadhan at oracle.com
Wed Jan 17 04:20:02 PST 2018
allow the application to set SO_ZEROCOPY on the underlying sk
of a PF_RDS socket
Signed-off-by: Sowmini Varadhan <sowmini.varadhan at oracle.com>
---
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
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