diff options
| author | Christoph Hellwig <hch@lst.de> | 2020-05-28 07:12:19 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-05-28 11:11:45 -0700 |
| commit | 12abc5ee7873a085cc280240822b8ac53c86fecd (patch) | |
| tree | edd6a9fd7283c51007fd860b55ac1b210e9db135 /drivers/block | |
| parent | db10538a4b997a77a1fd561adaaa58afc7dcfa2f (diff) | |
| download | linux-12abc5ee7873a085cc280240822b8ac53c86fecd.tar.bz2 | |
tcp: add tcp_sock_set_nodelay
Add a helper to directly set the TCP_NODELAY sockopt from kernel space
without going through a fake uaccess. Cleanup the callers to avoid
pointless wrappers now that this is a simple function call.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Sagi Grimberg <sagi@grimberg.me>
Acked-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/block')
| -rw-r--r-- | drivers/block/drbd/drbd_int.h | 7 | ||||
| -rw-r--r-- | drivers/block/drbd/drbd_main.c | 2 | ||||
| -rw-r--r-- | drivers/block/drbd/drbd_receiver.c | 4 |
3 files changed, 3 insertions, 10 deletions
diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h index 3550adc93c68..e24bba87c8e0 100644 --- a/drivers/block/drbd/drbd_int.h +++ b/drivers/block/drbd/drbd_int.h @@ -1570,13 +1570,6 @@ extern void drbd_set_recv_tcq(struct drbd_device *device, int tcq_enabled); extern void _drbd_clear_done_ee(struct drbd_device *device, struct list_head *to_be_freed); extern int drbd_connected(struct drbd_peer_device *); -static inline void drbd_tcp_nodelay(struct socket *sock) -{ - int val = 1; - (void) kernel_setsockopt(sock, SOL_TCP, TCP_NODELAY, - (char*)&val, sizeof(val)); -} - static inline void drbd_tcp_quickack(struct socket *sock) { int val = 2; diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c index c094c3c2c5d4..45fbd526c453 100644 --- a/drivers/block/drbd/drbd_main.c +++ b/drivers/block/drbd/drbd_main.c @@ -660,7 +660,7 @@ static int __send_command(struct drbd_connection *connection, int vnr, /* DRBD protocol "pings" are latency critical. * This is supposed to trigger tcp_push_pending_frames() */ if (!err && (cmd == P_PING || cmd == P_PING_ACK)) - drbd_tcp_nodelay(sock->socket); + tcp_sock_set_nodelay(sock->socket->sk); return err; } diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c index 55ea907ad33c..20a5e94494ac 100644 --- a/drivers/block/drbd/drbd_receiver.c +++ b/drivers/block/drbd/drbd_receiver.c @@ -1051,8 +1051,8 @@ randomize: /* we don't want delays. * we use TCP_CORK where appropriate, though */ - drbd_tcp_nodelay(sock.socket); - drbd_tcp_nodelay(msock.socket); + tcp_sock_set_nodelay(sock.socket->sk); + tcp_sock_set_nodelay(msock.socket->sk); connection->data.socket = sock.socket; connection->meta.socket = msock.socket; |