don't open-code kernel_setsockopt()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

3 files changed, 6 insertions, 32 deletions

diff --git a/fs/ocfs2/cluster/tcp.c b/fs/ocfs2/cluster/tcp.c
index 4348027384f5..58fb1bc2bb32 100644
--- a/fs/ocfs2/cluster/tcp.c
+++ b/fs/ocfs2/cluster/tcp.c
@@ -1460,27 +1460,10 @@ static void o2net_rx_until_empty(struct work_struct *work)
 
 static int o2net_set_nodelay(struct socket *sock)
 {
-        int ret, val = 1;
-        mm_segment_t oldfs;
+        int val = 1;
 
-        oldfs = get_fs();
-        set_fs(KERNEL_DS);
-
-        /*
-         * Dear unsuspecting programmer,
-         *
-         * Don't use sock_setsockopt() for SOL_TCP.  It doesn't check its level
-         * argument and assumes SOL_SOCKET so, say, your TCP_NODELAY will
-         * silently turn into SO_DEBUG.
-         *
-         * Yours,
-         * Keeper of hilariously fragile interfaces.
-         */
-        ret = sock->ops->setsockopt(sock, SOL_TCP, TCP_NODELAY,
-                                    (char __user *)&val, sizeof(val));
-
-        set_fs(oldfs);
-        return ret;
+        return kernel_setsockopt(sock, SOL_TCP, TCP_NODELAY,
+                                    (void *)&val, sizeof(val));
 }
 
 static int o2net_set_usertimeout(struct socket *sock)
@@ -1488,7 +1471,7 @@ static int o2net_set_usertimeout(struct socket *sock)
         int user_timeout = O2NET_TCP_USER_TIMEOUT;
 
         return kernel_setsockopt(sock, SOL_TCP, TCP_USER_TIMEOUT,
-                                (char *)&user_timeout, sizeof(user_timeout));
+                                (void *)&user_timeout, sizeof(user_timeout));
 }
 
 static void o2net_initialize_handshake(void)
diff --git a/net/rds/tcp.c b/net/rds/tcp.c
index a973d3b4dff0..731282fbaf58 100644
--- a/net/rds/tcp.c
+++ b/net/rds/tcp.c
@@ -84,13 +84,10 @@ static struct ctl_table rds_tcp_sysctl_table[] = {
 /* doing it this way avoids calling tcp_sk() */
 void rds_tcp_nonagle(struct socket *sock)
 {
-        mm_segment_t oldfs = get_fs();
         int val = 1;
 
-        set_fs(KERNEL_DS);
-        sock->ops->setsockopt(sock, SOL_TCP, TCP_NODELAY, (char __user *)&val,
+        kernel_setsockopt(sock, SOL_TCP, TCP_NODELAY, (void *)&val,
                               sizeof(val));
-        set_fs(oldfs);
 }
 
 u32 rds_tcp_snd_nxt(struct rds_tcp_connection *tc)
diff --git a/net/rds/tcp_send.c b/net/rds/tcp_send.c
index dcf4742083ea..52d11d7725c8 100644
--- a/net/rds/tcp_send.c
+++ b/net/rds/tcp_send.c
@@ -40,13 +40,7 @@
 
 static void rds_tcp_cork(struct socket *sock, int val)
 {
-        mm_segment_t oldfs;
-
-        oldfs = get_fs();
-        set_fs(KERNEL_DS);
-        sock->ops->setsockopt(sock, SOL_TCP, TCP_CORK, (char __user *)&val,
-                              sizeof(val));
-        set_fs(oldfs);
+        kernel_setsockopt(sock, SOL_TCP, TCP_CORK, (void *)&val, sizeof(val));
 }
 
 void rds_tcp_xmit_path_prepare(struct rds_conn_path *cp)