diff options
| author | Christoph Hellwig <hch@lst.de> | 2020-05-28 07:12:10 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-05-28 11:11:44 -0700 |
| commit | c433594c07457d2b2e41a87014bfad9bec279abf (patch) | |
| tree | 2c878b9ba357b4a52aec683daa19a1c3cf759cec /net/rds | |
| parent | b58f0e8f38c0a44afa59601a115bd231f23471e1 (diff) | |
| download | linux-c433594c07457d2b2e41a87014bfad9bec279abf.tar.gz | |
net: add sock_no_linger
Add a helper to directly set the SO_LINGER sockopt from kernel space
with onoff set to true and a linger time of 0 without going through a
fake uaccess.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/rds')
| -rw-r--r-- | net/rds/tcp.h | 1 | ||||
| -rw-r--r-- | net/rds/tcp_connect.c | 2 | ||||
| -rw-r--r-- | net/rds/tcp_listen.c | 13 |
3 files changed, 2 insertions, 14 deletions
diff --git a/net/rds/tcp.h b/net/rds/tcp.h index 3c69361d21c73..d640e210b97b6 100644 --- a/net/rds/tcp.h +++ b/net/rds/tcp.h @@ -73,7 +73,6 @@ void rds_tcp_listen_data_ready(struct sock *sk); int rds_tcp_accept_one(struct socket *sock); int rds_tcp_keepalive(struct socket *sock); void *rds_tcp_listen_sock_def_readable(struct net *net); -void rds_tcp_set_linger(struct socket *sock); /* tcp_recv.c */ int rds_tcp_recv_init(void); diff --git a/net/rds/tcp_connect.c b/net/rds/tcp_connect.c index 008f50fb25dd2..4e64598176b05 100644 --- a/net/rds/tcp_connect.c +++ b/net/rds/tcp_connect.c @@ -207,7 +207,7 @@ void rds_tcp_conn_path_shutdown(struct rds_conn_path *cp) if (sock) { if (rds_destroy_pending(cp->cp_conn)) - rds_tcp_set_linger(sock); + sock_no_linger(sock->sk); sock->ops->shutdown(sock, RCV_SHUTDOWN | SEND_SHUTDOWN); lock_sock(sock->sk); rds_tcp_restore_callbacks(sock, tc); /* tc->tc_sock = NULL */ diff --git a/net/rds/tcp_listen.c b/net/rds/tcp_listen.c index 810a3a49e9474..bbb31b9c0b391 100644 --- a/net/rds/tcp_listen.c +++ b/net/rds/tcp_listen.c @@ -111,17 +111,6 @@ struct rds_tcp_connection *rds_tcp_accept_one_path(struct rds_connection *conn) return NULL; } -void rds_tcp_set_linger(struct socket *sock) -{ - struct linger no_linger = { - .l_onoff = 1, - .l_linger = 0, - }; - - kernel_setsockopt(sock, SOL_SOCKET, SO_LINGER, - (char *)&no_linger, sizeof(no_linger)); -} - int rds_tcp_accept_one(struct socket *sock) { struct socket *new_sock = NULL; @@ -241,7 +230,7 @@ rst_nsk: * be pending on it. By setting linger, we achieve the side-effect * of avoiding TIME_WAIT state on new_sock. */ - rds_tcp_set_linger(new_sock); + sock_no_linger(new_sock->sk); kernel_sock_shutdown(new_sock, SHUT_RDWR); ret = 0; out: |