Commit b713c195 authored by Jens Axboe's avatar Jens Axboe
Browse files

net: provide __sys_shutdown_sock() that takes a socket 



No functional changes in this patch, needed to provide io_uring support
for shutdown(2).

Cc: netdev@vger.kernel.org
Cc: David S. Miller <davem@davemloft.net>
Acked-by: default avatarJakub Kicinski <kuba@kernel.org>
Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent ce59fc69

include/linux/socket.h

+1 −0
Original line number Diff line number Diff line
@@ -436,6 +436,7 @@ extern int __sys_getpeername(int fd, struct sockaddr __user *usockaddr, 
			     int __user *usockaddr_len);

extern int __sys_socketpair(int family, int type, int protocol,

			    int __user *usockvec);

extern int __sys_shutdown_sock(struct socket *sock, int how);

extern int __sys_shutdown(int fd, int how);



extern struct ns_common *get_net_ns(struct ns_common *ns);

net/socket.c

+12 −3
Original line number Diff line number Diff line
@@ -2192,6 +2192,17 @@ SYSCALL_DEFINE5(getsockopt, int, fd, int, level, int, optname, 
 *	Shutdown a socket.

 */



int __sys_shutdown_sock(struct socket *sock, int how)

{

	int err;



	err = security_socket_shutdown(sock, how);

	if (!err)

		err = sock->ops->shutdown(sock, how);



	return err;

}



int __sys_shutdown(int fd, int how)

{

	int err, fput_needed;
@@ -2199,9 +2210,7 @@ int __sys_shutdown(int fd, int how) 


	sock = sockfd_lookup_light(fd, &err, &fput_needed);

	if (sock != NULL) {

		err = security_socket_shutdown(sock, how);

		if (!err)

			err = sock->ops->shutdown(sock, how);

		err = __sys_shutdown_sock(sock, how);

		fput_light(sock->file, fput_needed);

	}

	return err;

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