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don't open-code kernel_setsockopt()

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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2017-03-18 21:20:27 -04:00
parent c1ae3cfa0e
commit e73a67f7cd
3 changed files with 6 additions and 32 deletions
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25
fs/ocfs2/cluster/tcp.c
View File

@ -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)

5
net/rds/tcp.c
View File

@ -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)

8
net/rds/tcp_send.c
View File

@ -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)