[rds-devel] [PATCH net-next 3/7] sock: permit SO_ZEROCOPY on PF_RDS socket
Sowmini Varadhan
sowmini.varadhan at oracle.com
Wed Jan 24 03:45:58 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 | 25 ++++++++++++++-----------
1 files changed, 14 insertions(+), 11 deletions(-)
diff --git a/net/core/sock.c b/net/core/sock.c
index 72d14b2..3c75adc 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -1049,18 +1049,21 @@ int sock_setsockopt(struct socket *sock, int level, int optname,
break;
case SO_ZEROCOPY:
- if (sk->sk_family != PF_INET && sk->sk_family != PF_INET6)
+ if (sk->sk_family == PF_INET || sk->sk_family == PF_INET6) {
+ if (sk->sk_protocol != IPPROTO_TCP)
+ ret = -ENOTSUPP;
+ else if (sk->sk_state != TCP_CLOSE)
+ ret = -EBUSY;
+ } else if (sk->sk_family != PF_RDS) {
ret = -ENOTSUPP;
- else if (sk->sk_protocol != IPPROTO_TCP)
- ret = -ENOTSUPP;
- else if (sk->sk_state != TCP_CLOSE)
- ret = -EBUSY;
- else if (val < 0 || val > 1)
- ret = -EINVAL;
- else
- sock_valbool_flag(sk, SOCK_ZEROCOPY, valbool);
- break;
-
+ }
+ if (!ret) {
+ if (val < 0 || val > 1)
+ ret = -EINVAL;
+ else
+ sock_valbool_flag(sk, SOCK_ZEROCOPY, valbool);
+ break;
+ }
default:
ret = -ENOPROTOOPT;
break;
--
1.7.1
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