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scoutfs: set NODELAY and REUSEADDR on net sockets

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Add a helper that creates a socket and sets nodelay for all sockets and
set reuseaddr in listening sockets.

Signed-off-by: Zach Brown <zab@versity.com>
This commit is contained in:
Zach Brown
2017-06-06 14:23:03 -07:00
parent c84250b8c6
commit 2bd698b604
1 changed files with 44 additions and 2 deletions
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46
kmod/src/net.c
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@@ -1837,6 +1837,38 @@ static void scoutfs_net_accept_func(struct work_struct *work)
}
}
/*
* Create a new TCP socket and set all the options that are used for
* both connecting and listening sockets.
*/
static int create_sock_setopts(struct socket **sock_ret)
{
struct socket *sock;
int optval;
int ret;
*sock_ret = NULL;
ret = sock_create_kern(AF_INET, SOCK_STREAM, IPPROTO_TCP, &sock);
if (ret) {
trace_printk("sock create ret %d\n", ret);
return ret;
}
optval = 1;
ret = kernel_setsockopt(sock, SOL_TCP, TCP_NODELAY, (char *)&optval,
sizeof(optval));
if (ret) {
trace_printk("nodelay ret %d\n", ret);
sock_release(sock);
return ret;
}
*sock_ret = sock;
return 0;
}
/*
* The server work has acquired the listen lock. We create a socket and
* publish its bound address in the addr lock's lvb.
@@ -1855,6 +1887,7 @@ static void scoutfs_net_listen_func(struct work_struct *work)
struct sockaddr_in sin;
struct socket *sock;
int addrlen;
int optval;
int ret;
/* XXX option to set listening address */
@@ -1865,13 +1898,22 @@ static void scoutfs_net_listen_func(struct work_struct *work)
trace_printk("binding to %pIS:%u\n",
&sin, be16_to_cpu(sin.sin_port));
ret = sock_create_kern(AF_INET, SOCK_STREAM, IPPROTO_TCP, &sock);
ret = create_sock_setopts(&sock);
if (ret)
goto out;
trace_printk("listening sinf %p sock %p sk %p\n",
sinf, sock, sock->sk);
optval = 1;
ret = kernel_setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, (char *)&optval,
sizeof(optval));
if (ret) {
trace_printk("reuseaddr ret %d\n", ret);
sock_release(sock);
goto out;
}
sinf->sock = sock;
INIT_WORK(&sinf->accept_work, scoutfs_net_accept_func);
@@ -1914,7 +1956,7 @@ static void scoutfs_net_connect_func(struct work_struct *work)
int addrlen;
int ret;
ret = sock_create_kern(AF_INET, SOCK_STREAM, IPPROTO_TCP, &sock);
ret = create_sock_setopts(&sock);
if (ret)
goto out;